WIP

api/account.go

@@ -44,7 +44,7 @@ func (a *API) getAccounts(c *gin.Context) {
 		return
 	}
 
-	// Build successful response
+	// Build succesfull response
 	type accountResponse struct {
 		Accounts     []historydb.AccountAPI `json:"accounts"`
 		PendingItems uint64                 `json:"pendingItems"`

api/accountcreationauths.go

@@ -47,7 +47,7 @@ func (a *API) getAccountCreationAuth(c *gin.Context) {
 		retSQLErr(err, c)
 		return
 	}
-	// Build successful response
+	// Build succesfull response
 	c.JSON(http.StatusOK, auth)
 }
 

api/api.go

@@ -2,40 +2,19 @@ package api
 
 import (
 	"errors"
-	"sync"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/gin-gonic/gin"
-	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
 	"github.com/hermeznetwork/hermez-node/db/l2db"
 	"github.com/hermeznetwork/tracerr"
 )
 
-// TODO: Add correct values to constants
-const (
-	createAccountExtraFeePercentage         float64 = 2
-	createAccountInternalExtraFeePercentage float64 = 2.5
-)
-
-// Status define status of the network
-type Status struct {
-	sync.RWMutex
-	NodeConfig        NodeConfig                    `json:"nodeConfig"`
-	Network           Network                       `json:"network"`
-	Metrics           historydb.Metrics             `json:"metrics"`
-	Rollup            historydb.RollupVariablesAPI  `json:"rollup"`
-	Auction           historydb.AuctionVariablesAPI `json:"auction"`
-	WithdrawalDelayer common.WDelayerVariables      `json:"withdrawalDelayer"`
-	RecommendedFee    common.RecommendedFee         `json:"recommendedFee"`
-}
-
 // API serves HTTP requests to allow external interaction with the Hermez node
 type API struct {
 	h             *historydb.HistoryDB
 	cg            *configAPI
 	l2            *l2db.L2DB
-	status        Status
 	chainID       uint16
 	hermezAddress ethCommon.Address
 }
@@ -46,8 +25,6 @@ func NewAPI(
 	server *gin.Engine,
 	hdb *historydb.HistoryDB,
 	l2db *l2db.L2DB,
-	config *Config,
-	nodeConfig *NodeConfig,
 ) (*API, error) {
 	// Check input
 	// TODO: is stateDB only needed for explorer endpoints or for both?
@@ -57,20 +34,20 @@ func NewAPI(
 	if explorerEndpoints && hdb == nil {
 		return nil, tracerr.Wrap(errors.New("cannot serve Explorer endpoints without HistoryDB"))
 	}
-
+	consts, err := hdb.GetConstants()
+	if err != nil {
+		return nil, err
+	}
 	a := &API{
 		h: hdb,
 		cg: &configAPI{
-			RollupConstants:   *newRollupConstants(config.RollupConstants),
+			RollupConstants:   *newRollupConstants(consts.Rollup),
-			AuctionConstants:  config.AuctionConstants,
+			AuctionConstants:  consts.Auction,
-			WDelayerConstants: config.WDelayerConstants,
+			WDelayerConstants: consts.WDelayer,
 		},
-		l2: l2db,
+		l2:            l2db,
-		status: Status{
+		chainID:       consts.ChainID,
-			NodeConfig: *nodeConfig,
+		hermezAddress: consts.HermezAddress,
-		},
-		chainID:       config.ChainID,
-		hermezAddress: config.HermezAddress,
 	}
 
 	// Add coordinator endpoints

api/api_test.go

@@ -180,12 +180,13 @@ type testCommon struct {
 	auctionVars      common.AuctionVariables
 	rollupVars       common.RollupVariables
 	wdelayerVars     common.WDelayerVariables
-	nextForgers      []NextForger
+	nextForgers      []historydb.NextForgerAPI
 }
 
 var tc testCommon
 var config configAPI
 var api *API
+var stateAPIUpdater *StateAPIUpdater
 
 // TestMain initializes the API server, and fill HistoryDB and StateDB with fake data,
 // emulating the task of the synchronizer in order to have data to be returned
@@ -201,21 +202,11 @@ func TestMain(m *testing.M) {
 	if err != nil {
 		panic(err)
 	}
-	apiConnCon := db.NewAPIConnectionController(1, time.Second)
+	apiConnCon := db.NewAPICnnectionController(1, time.Second)
 	hdb := historydb.NewHistoryDB(database, database, apiConnCon)
 	if err != nil {
 		panic(err)
 	}
-	// StateDB
-	dir, err := ioutil.TempDir("", "tmpdb")
-	if err != nil {
-		panic(err)
-	}
-	defer func() {
-		if err := os.RemoveAll(dir); err != nil {
-			panic(err)
-		}
-	}()
 	// L2DB
 	l2DB := l2db.NewL2DB(database, database, 10, 1000, 0.0, 24*time.Hour, apiConnCon)
 	test.WipeDB(l2DB.DB()) // this will clean HistoryDB and L2DB
@@ -230,18 +221,38 @@ func TestMain(m *testing.M) {
 
 	// API
 	apiGin := gin.Default()
+	// Reset DB
+	test.WipeDB(hdb.DB())
+
+	constants := &historydb.Constants{
+		SCConsts: common.SCConsts{
+			Rollup:   _config.RollupConstants,
+			Auction:  _config.AuctionConstants,
+			WDelayer: _config.WDelayerConstants,
+		},
+		ChainID:       chainID,
+		HermezAddress: _config.HermezAddress,
+	}
+	if err := hdb.SetConstants(constants); err != nil {
+		panic(err)
+	}
+	nodeConfig := &historydb.NodeConfig{
+		MaxPoolTxs: 10,
+		MinFeeUSD:  0,
+	}
+	if err := hdb.SetNodeConfig(nodeConfig); err != nil {
+		panic(err)
+	}
+
 	api, err = NewAPI(
 		true,
 		true,
 		apiGin,
 		hdb,
 		l2DB,
-		&_config,
-		&NodeConfig{
-			ForgeDelay: 180,
-		},
 	)
 	if err != nil {
+		log.Error(err)
 		panic(err)
 	}
 	// Start server
@@ -257,10 +268,7 @@ func TestMain(m *testing.M) {
 		}
 	}()
 
-	// Reset DB
+	// Genratre blockchain data with til
-	test.WipeDB(api.h.DB())
-
-	// Generate blockchain data with til
 	tcc := til.NewContext(chainID, common.RollupConstMaxL1UserTx)
 	tilCfgExtra := til.ConfigExtra{
 		BootCoordAddr: ethCommon.HexToAddress("0xE39fEc6224708f0772D2A74fd3f9055A90E0A9f2"),
@@ -460,19 +468,19 @@ func TestMain(m *testing.M) {
 	if err = api.h.AddBids(bids); err != nil {
 		panic(err)
 	}
-	bootForger := NextForger{
+	bootForger := historydb.NextForgerAPI{
 		Coordinator: historydb.CoordinatorAPI{
 			Forger: auctionVars.BootCoordinator,
 			URL:    auctionVars.BootCoordinatorURL,
 		},
 	}
 	// Set next forgers: set all as boot coordinator then replace the non boot coordinators
-	nextForgers := []NextForger{}
+	nextForgers := []historydb.NextForgerAPI{}
 	var initBlock int64 = 140
 	var deltaBlocks int64 = 40
 	for i := 1; i < int(auctionVars.ClosedAuctionSlots)+2; i++ {
 		fromBlock := initBlock + deltaBlocks*int64(i-1)
-		bootForger.Period = Period{
+		bootForger.Period = historydb.Period{
 			SlotNum:   int64(i),
 			FromBlock: fromBlock,
 			ToBlock:   fromBlock + deltaBlocks - 1,
@@ -512,7 +520,13 @@ func TestMain(m *testing.M) {
 		WithdrawalDelay: uint64(3000),
 	}
 
-	// Generate test data, as expected to be received/sent from/to the API
+	stateAPIUpdater = NewStateAPIUpdater(hdb, nodeConfig, &common.SCVariables{
+		Rollup:   rollupVars,
+		Auction:  auctionVars,
+		WDelayer: wdelayerVars,
+	}, constants)
+
+	// Generate test data, as expected to be received/sended from/to the API
 	testCoords := genTestCoordinators(commonCoords)
 	testBids := genTestBids(commonBlocks, testCoords, bids)
 	testExits := genTestExits(commonExitTree, testTokens, commonAccounts)
@@ -589,17 +603,14 @@ func TestMain(m *testing.M) {
 	if err := database.Close(); err != nil {
 		panic(err)
 	}
-	if err := os.RemoveAll(dir); err != nil {
-		panic(err)
-	}
 	os.Exit(result)
 }
 
 func TestTimeout(t *testing.T) {
 	pass := os.Getenv("POSTGRES_PASS")
-	databaseTO, err := db.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
+	databaseTO, err := db.ConnectSQLDB(5432, "localhost", "hermez", pass, "hermez")
 	require.NoError(t, err)
-	apiConnConTO := db.NewAPIConnectionController(1, 100*time.Millisecond)
+	apiConnConTO := db.NewAPICnnectionController(1, 100*time.Millisecond)
 	hdbTO := historydb.NewHistoryDB(databaseTO, databaseTO, apiConnConTO)
 	require.NoError(t, err)
 	// L2DB
@@ -627,17 +638,12 @@ func TestTimeout(t *testing.T) {
 			require.NoError(t, err)
 		}
 	}()
-	_config := getConfigTest(0)
 	_, err = NewAPI(
 		true,
 		true,
 		apiGinTO,
 		hdbTO,
 		l2DBTO,
-		&_config,
-		&NodeConfig{
-			ForgeDelay: 180,
-		},
 	)
 	require.NoError(t, err)
 

api/batch.go

@@ -52,7 +52,7 @@ func (a *API) getBatches(c *gin.Context) {
 		return
 	}
 
-	// Build successful response
+	// Build succesfull response
 	type batchesResponse struct {
 		Batches      []historydb.BatchAPI `json:"batches"`
 		PendingItems uint64               `json:"pendingItems"`

api/bids.go

@@ -34,7 +34,7 @@ func (a *API) getBids(c *gin.Context) {
 		return
 	}
 
-	// Build successful response
+	// Build succesfull response
 	type bidsResponse struct {
 		Bids         []historydb.BidAPI `json:"bids"`
 		PendingItems uint64             `json:"pendingItems"`

api/coordinator.go

@@ -32,7 +32,7 @@ func (a *API) getCoordinators(c *gin.Context) {
 		return
 	}
 
-	// Build successful response
+	// Build succesfull response
 	type coordinatorsResponse struct {
 		Coordinators []historydb.CoordinatorAPI `json:"coordinators"`
 		PendingItems uint64                     `json:"pendingItems"`

api/exits.go

@@ -43,7 +43,7 @@ func (a *API) getExits(c *gin.Context) {
 		return
 	}
 
-	// Build successful response
+	// Build succesfull response
 	type exitsResponse struct {
 		Exits        []historydb.ExitAPI `json:"exits"`
 		PendingItems uint64              `json:"pendingItems"`
@@ -72,6 +72,6 @@ func (a *API) getExit(c *gin.Context) {
 		retSQLErr(err, c)
 		return
 	}
-	// Build successful response
+	// Build succesfull response
 	c.JSON(http.StatusOK, exit)
 }

api/handlers.go

@@ -14,7 +14,7 @@ import (
 )
 
 const (
-	// maxLimit is the max permitted items to be returned in paginated responses
+	// maxLimit is the max permited items to be returned in paginated responses
 	maxLimit uint = 2049
 
 	// dfltOrder indicates how paginated endpoints are ordered if not specified
@@ -40,8 +40,8 @@ const (
 )
 
 var (
-	// ErrNilBidderAddr is used when a nil bidderAddr is received in the getCoordinator method
+	// ErrNillBidderAddr is used when a nil bidderAddr is received in the getCoordinator method
-	ErrNilBidderAddr = errors.New("biderAddr can not be nil")
+	ErrNillBidderAddr = errors.New("biderAddr can not be nil")
 )
 
 func retSQLErr(err error, c *gin.Context) {

api/parsers.go

@@ -50,19 +50,19 @@ func parsePagination(c querier) (fromItem *uint, order string, limit *uint, err
 	return fromItem, order, limit, nil
 }
 
-// nolint reason: res may be not overwritten
+// nolint reason: res may be not overwriten
 func parseQueryUint(name string, dflt *uint, min, max uint, c querier) (*uint, error) { //nolint:SA4009
 	str := c.Query(name)
 	return stringToUint(str, name, dflt, min, max)
 }
 
-// nolint reason: res may be not overwritten
+// nolint reason: res may be not overwriten
 func parseQueryInt64(name string, dflt *int64, min, max int64, c querier) (*int64, error) { //nolint:SA4009
 	str := c.Query(name)
 	return stringToInt64(str, name, dflt, min, max)
 }
 
-// nolint reason: res may be not overwritten
+// nolint reason: res may be not overwriten
 func parseQueryBool(name string, dflt *bool, c querier) (*bool, error) { //nolint:SA4009
 	str := c.Query(name)
 	if str == "" {
@@ -295,13 +295,13 @@ func parseParamIdx(c paramer) (*common.Idx, error) {
 	return stringToIdx(idxStr, name)
 }
 
-// nolint reason: res may be not overwritten
+// nolint reason: res may be not overwriten
 func parseParamUint(name string, dflt *uint, min, max uint, c paramer) (*uint, error) { //nolint:SA4009
 	str := c.Param(name)
 	return stringToUint(str, name, dflt, min, max)
 }
 
-// nolint reason: res may be not overwritten
+// nolint reason: res may be not overwriten
 func parseParamInt64(name string, dflt *int64, min, max int64, c paramer) (*int64, error) { //nolint:SA4009
 	str := c.Param(name)
 	return stringToInt64(str, name, dflt, min, max)

api/slots.go

@@ -11,7 +11,7 @@ import (
 	"github.com/hermeznetwork/tracerr"
 )
 
-// SlotAPI is a representation of a slot information
+// SlotAPI is a repesentation of a slot information
 type SlotAPI struct {
 	ItemID      uint64            `json:"itemId"`
 	SlotNum     int64             `json:"slotNum"`
@@ -316,7 +316,7 @@ func (a *API) getSlots(c *gin.Context) {
 		return
 	}
 
-	// Build successful response
+	// Build succesfull response
 	type slotsResponse struct {
 		Slots        []SlotAPI `json:"slots"`
 		PendingItems uint64    `json:"pendingItems"`

api/slots_test.go

@@ -99,7 +99,9 @@ func TestGetSlot(t *testing.T) {
 			nil, &fetchedSlot,
 		),
 	)
-	emptySlot := api.getEmptyTestSlot(slotNum, api.status.Network.LastSyncBlock, tc.auctionVars)
+	// ni, err := api.h.GetNodeInfoAPI()
+	// assert.NoError(t, err)
+	emptySlot := api.getEmptyTestSlot(slotNum, 0, tc.auctionVars)
 	assertSlot(t, emptySlot, fetchedSlot)
 
 	// Invalid slotNum
@@ -127,8 +129,10 @@ func TestGetSlots(t *testing.T) {
 	err := doGoodReqPaginated(path, historydb.OrderAsc, &testSlotsResponse{}, appendIter)
 	assert.NoError(t, err)
 	allSlots := tc.slots
+	// ni, err := api.h.GetNodeInfoAPI()
+	// assert.NoError(t, err)
 	for i := tc.slots[len(tc.slots)-1].SlotNum; i < maxSlotNum; i++ {
-		emptySlot := api.getEmptyTestSlot(i+1, api.status.Network.LastSyncBlock, tc.auctionVars)
+		emptySlot := api.getEmptyTestSlot(i+1, 0, tc.auctionVars)
 		allSlots = append(allSlots, emptySlot)
 	}
 	assertSlots(t, allSlots, fetchedSlots)

api/state.go

@@ -2,319 +2,160 @@ package api
 
 import (
 	"database/sql"
-	"fmt"
-	"math"
-	"math/big"
 	"net/http"
-	"time"
+	"sync"
 
 	"github.com/gin-gonic/gin"
-	"github.com/hermeznetwork/hermez-node/apitypes"
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
 	"github.com/hermeznetwork/tracerr"
 )
 
-// Network define status of the network
-type Network struct {
-	LastEthBlock  int64               `json:"lastEthereumBlock"`
-	LastSyncBlock int64               `json:"lastSynchedBlock"`
-	LastBatch     *historydb.BatchAPI `json:"lastBatch"`
-	CurrentSlot   int64               `json:"currentSlot"`
-	NextForgers   []NextForger        `json:"nextForgers"`
-}
-
-// NodeConfig is the configuration of the node that is exposed via API
-type NodeConfig struct {
-	// ForgeDelay in seconds
-	ForgeDelay float64 `json:"forgeDelay"`
-}
-
-// NextForger  is a representation of the information of a coordinator and the period will forge
-type NextForger struct {
-	Coordinator historydb.CoordinatorAPI `json:"coordinator"`
-	Period      Period                   `json:"period"`
-}
-
-// Period is a representation of a period
-type Period struct {
-	SlotNum       int64     `json:"slotNum"`
-	FromBlock     int64     `json:"fromBlock"`
-	ToBlock       int64     `json:"toBlock"`
-	FromTimestamp time.Time `json:"fromTimestamp"`
-	ToTimestamp   time.Time `json:"toTimestamp"`
-}
-
 func (a *API) getState(c *gin.Context) {
-	// TODO: There are no events for the buckets information, so now this information will be 0
+	stateAPI, err := a.h.GetStateAPI()
-	a.status.RLock()
+	if err != nil {
-	status := a.status //nolint
+		retBadReq(err, c)
-	a.status.RUnlock()
+		return
-	c.JSON(http.StatusOK, status) //nolint
-}
-
-// SC Vars
-
-// SetRollupVariables set Status.Rollup variables
-func (a *API) SetRollupVariables(rollupVariables common.RollupVariables) {
-	a.status.Lock()
-	var rollupVAPI historydb.RollupVariablesAPI
-	rollupVAPI.EthBlockNum = rollupVariables.EthBlockNum
-	rollupVAPI.FeeAddToken = apitypes.NewBigIntStr(rollupVariables.FeeAddToken)
-	rollupVAPI.ForgeL1L2BatchTimeout = rollupVariables.ForgeL1L2BatchTimeout
-	rollupVAPI.WithdrawalDelay = rollupVariables.WithdrawalDelay
-
-	for i, bucket := range rollupVariables.Buckets {
-		var apiBucket historydb.BucketParamsAPI
-		apiBucket.CeilUSD = apitypes.NewBigIntStr(bucket.CeilUSD)
-		apiBucket.Withdrawals = apitypes.NewBigIntStr(bucket.Withdrawals)
-		apiBucket.BlockWithdrawalRate = apitypes.NewBigIntStr(bucket.BlockWithdrawalRate)
-		apiBucket.MaxWithdrawals = apitypes.NewBigIntStr(bucket.MaxWithdrawals)
-		rollupVAPI.Buckets[i] = apiBucket
 	}
-
+	c.JSON(http.StatusOK, stateAPI)
-	rollupVAPI.SafeMode = rollupVariables.SafeMode
-	a.status.Rollup = rollupVAPI
-	a.status.Unlock()
 }
 
-// SetWDelayerVariables set Status.WithdrawalDelayer variables
+// StateAPIUpdater is an utility object to facilitate updating the StateAPI
-func (a *API) SetWDelayerVariables(wDelayerVariables common.WDelayerVariables) {
+type StateAPIUpdater struct {
-	a.status.Lock()
+	hdb    *historydb.HistoryDB
-	a.status.WithdrawalDelayer = wDelayerVariables
+	state  historydb.StateAPI
-	a.status.Unlock()
+	config historydb.NodeConfig
+	vars   common.SCVariablesPtr
+	consts historydb.Constants
+	rw     sync.RWMutex
 }
 
-// SetAuctionVariables set Status.Auction variables
+// NewStateAPIUpdater creates a new StateAPIUpdater
-func (a *API) SetAuctionVariables(auctionVariables common.AuctionVariables) {
+func NewStateAPIUpdater(hdb *historydb.HistoryDB, config *historydb.NodeConfig, vars *common.SCVariables,
-	a.status.Lock()
+	consts *historydb.Constants) *StateAPIUpdater {
-	var auctionAPI historydb.AuctionVariablesAPI
+	u := StateAPIUpdater{
-
+		hdb:    hdb,
-	auctionAPI.EthBlockNum = auctionVariables.EthBlockNum
+		config: *config,
-	auctionAPI.DonationAddress = auctionVariables.DonationAddress
+		consts: *consts,
-	auctionAPI.BootCoordinator = auctionVariables.BootCoordinator
-	auctionAPI.BootCoordinatorURL = auctionVariables.BootCoordinatorURL
-	auctionAPI.DefaultSlotSetBidSlotNum = auctionVariables.DefaultSlotSetBidSlotNum
-	auctionAPI.ClosedAuctionSlots = auctionVariables.ClosedAuctionSlots
-	auctionAPI.OpenAuctionSlots = auctionVariables.OpenAuctionSlots
-	auctionAPI.Outbidding = auctionVariables.Outbidding
-	auctionAPI.SlotDeadline = auctionVariables.SlotDeadline
-
-	for i, slot := range auctionVariables.DefaultSlotSetBid {
-		auctionAPI.DefaultSlotSetBid[i] = apitypes.NewBigIntStr(slot)
 	}
-
+	u.SetSCVars(vars.AsPtr())
-	for i, ratio := range auctionVariables.AllocationRatio {
+	return &u
-		auctionAPI.AllocationRatio[i] = ratio
-	}
-
-	a.status.Auction = auctionAPI
-	a.status.Unlock()
 }
 
-// Network
+// Store the State in the HistoryDB
+func (u *StateAPIUpdater) Store() error {
+	u.rw.RLock()
+	defer u.rw.RUnlock()
+	return tracerr.Wrap(u.hdb.SetStateInternalAPI(&u.state))
+}
+
+// SetSCVars sets the smart contract vars (ony updates those that are not nil)
+func (u *StateAPIUpdater) SetSCVars(vars *common.SCVariablesPtr) {
+	u.rw.Lock()
+	defer u.rw.Unlock()
+	if vars.Rollup != nil {
+		u.vars.Rollup = vars.Rollup
+		rollupVars := historydb.NewRollupVariablesAPI(u.vars.Rollup)
+		u.state.Rollup = *rollupVars
+	}
+	if vars.Auction != nil {
+		u.vars.Auction = vars.Auction
+		auctionVars := historydb.NewAuctionVariablesAPI(u.vars.Auction)
+		u.state.Auction = *auctionVars
+	}
+	if vars.WDelayer != nil {
+		u.vars.WDelayer = vars.WDelayer
+		u.state.WithdrawalDelayer = *u.vars.WDelayer
+	}
+}
+
+// UpdateRecommendedFee update Status.RecommendedFee information
+func (u *StateAPIUpdater) UpdateRecommendedFee() error {
+	recommendedFee, err := u.hdb.GetRecommendedFee(u.config.MinFeeUSD)
+	if err != nil {
+		return tracerr.Wrap(err)
+	}
+	u.rw.Lock()
+	u.state.RecommendedFee = *recommendedFee
+	u.rw.Unlock()
+	return nil
+}
+
+// UpdateMetrics update Status.Metrics information
+func (u *StateAPIUpdater) UpdateMetrics() error {
+	u.rw.RLock()
+	lastBatch := u.state.Network.LastBatch
+	u.rw.RUnlock()
+	if lastBatch == nil {
+		return nil
+	}
+	lastBatchNum := lastBatch.BatchNum
+	metrics, err := u.hdb.GetMetricsInternalAPI(lastBatchNum)
+	if err != nil {
+		return tracerr.Wrap(err)
+	}
+	u.rw.Lock()
+	u.state.Metrics = *metrics
+	u.rw.Unlock()
+	return nil
+}
 
 // UpdateNetworkInfoBlock update Status.Network block related information
-func (a *API) UpdateNetworkInfoBlock(
+func (u *StateAPIUpdater) UpdateNetworkInfoBlock(lastEthBlock, lastSyncBlock common.Block) {
-	lastEthBlock, lastSyncBlock common.Block,
+	u.rw.Lock()
-) {
+	u.state.Network.LastSyncBlock = lastSyncBlock.Num
-	a.status.Network.LastSyncBlock = lastSyncBlock.Num
+	u.state.Network.LastEthBlock = lastEthBlock.Num
-	a.status.Network.LastEthBlock = lastEthBlock.Num
+	u.rw.Unlock()
 }
 
 // UpdateNetworkInfo update Status.Network information
-func (a *API) UpdateNetworkInfo(
+func (u *StateAPIUpdater) UpdateNetworkInfo(
 	lastEthBlock, lastSyncBlock common.Block,
 	lastBatchNum common.BatchNum, currentSlot int64,
 ) error {
-	lastBatch, err := a.h.GetBatchAPI(lastBatchNum)
+	// Get last batch in API format
+	lastBatch, err := u.hdb.GetBatchInternalAPI(lastBatchNum)
 	if tracerr.Unwrap(err) == sql.ErrNoRows {
 		lastBatch = nil
 	} else if err != nil {
 		return tracerr.Wrap(err)
 	}
-	lastClosedSlot := currentSlot + int64(a.status.Auction.ClosedAuctionSlots)
+	u.rw.RLock()
-	nextForgers, err := a.getNextForgers(lastSyncBlock, currentSlot, lastClosedSlot)
+	auctionVars := u.vars.Auction
+	u.rw.RUnlock()
+	// Get next forgers
+	lastClosedSlot := currentSlot + int64(auctionVars.ClosedAuctionSlots)
+	nextForgers, err := u.hdb.GetNextForgersInternalAPI(auctionVars, &u.consts.Auction,
+		lastSyncBlock, currentSlot, lastClosedSlot)
 	if tracerr.Unwrap(err) == sql.ErrNoRows {
 		nextForgers = nil
 	} else if err != nil {
 		return tracerr.Wrap(err)
 	}
-	a.status.Lock()
-	a.status.Network.LastSyncBlock = lastSyncBlock.Num
-	a.status.Network.LastEthBlock = lastEthBlock.Num
-	a.status.Network.LastBatch = lastBatch
-	a.status.Network.CurrentSlot = currentSlot
-	a.status.Network.NextForgers = nextForgers
 
-	// Update buckets withdrawals
+	bucketUpdates, err := u.hdb.GetBucketUpdatesInternalAPI()
-	bucketsUpdate, err := a.h.GetBucketUpdatesAPI()
+	if err == sql.ErrNoRows {
-	if tracerr.Unwrap(err) == sql.ErrNoRows {
+		bucketUpdates = nil
-		bucketsUpdate = nil
 	} else if err != nil {
 		return tracerr.Wrap(err)
 	}
 
-	for i, bucketParams := range a.status.Rollup.Buckets {
+	u.rw.Lock()
-		for _, bucketUpdate := range bucketsUpdate {
+	// Update NodeInfo struct
+	for i, bucketParams := range u.state.Rollup.Buckets {
+		for _, bucketUpdate := range bucketUpdates {
 			if bucketUpdate.NumBucket == i {
 				bucketParams.Withdrawals = bucketUpdate.Withdrawals
-				a.status.Rollup.Buckets[i] = bucketParams
+				u.state.Rollup.Buckets[i] = bucketParams
 				break
 			}
 		}
 	}
-	a.status.Unlock()
+	u.state.Network.LastSyncBlock = lastSyncBlock.Num
-	return nil
+	u.state.Network.LastEthBlock = lastEthBlock.Num
-}
+	u.state.Network.LastBatch = lastBatch
-
+	u.state.Network.CurrentSlot = currentSlot
-// apiSlotToBigInts converts from [6]*apitypes.BigIntStr to [6]*big.Int
+	u.state.Network.NextForgers = nextForgers
-func apiSlotToBigInts(defaultSlotSetBid [6]*apitypes.BigIntStr) ([6]*big.Int, error) {
+	u.rw.Unlock()
-	var slots [6]*big.Int
-
-	for i, slot := range defaultSlotSetBid {
-		bigInt, ok := new(big.Int).SetString(string(*slot), 10)
-		if !ok {
-			return slots, tracerr.Wrap(fmt.Errorf("can't convert %T into big.Int", slot))
-		}
-		slots[i] = bigInt
-	}
-
-	return slots, nil
-}
-
-// getNextForgers returns next forgers
-func (a *API) getNextForgers(lastBlock common.Block, currentSlot, lastClosedSlot int64) ([]NextForger, error) {
-	secondsPerBlock := int64(15) //nolint:gomnd
-	// currentSlot and lastClosedSlot included
-	limit := uint(lastClosedSlot - currentSlot + 1)
-	bids, _, err := a.h.GetBestBidsAPI(&currentSlot, &lastClosedSlot, nil, &limit, "ASC")
-	if err != nil && tracerr.Unwrap(err) != sql.ErrNoRows {
-		return nil, tracerr.Wrap(err)
-	}
-	nextForgers := []NextForger{}
-	// Get min bid info
-	var minBidInfo []historydb.MinBidInfo
-	if currentSlot >= a.status.Auction.DefaultSlotSetBidSlotNum {
-		// All min bids can be calculated with the last update of AuctionVariables
-		bigIntSlots, err := apiSlotToBigInts(a.status.Auction.DefaultSlotSetBid)
-		if err != nil {
-			return nil, tracerr.Wrap(err)
-		}
-
-		minBidInfo = []historydb.MinBidInfo{{
-			DefaultSlotSetBid:        bigIntSlots,
-			DefaultSlotSetBidSlotNum: a.status.Auction.DefaultSlotSetBidSlotNum,
-		}}
-	} else {
-		// Get all the relevant updates from the DB
-		minBidInfo, err = a.h.GetAuctionVarsUntilSetSlotNumAPI(lastClosedSlot, int(lastClosedSlot-currentSlot)+1)
-		if err != nil {
-			return nil, tracerr.Wrap(err)
-		}
-	}
-	// Create nextForger for each slot
-	for i := currentSlot; i <= lastClosedSlot; i++ {
-		fromBlock := i*int64(a.cg.AuctionConstants.BlocksPerSlot) + a.cg.AuctionConstants.GenesisBlockNum
-		toBlock := (i+1)*int64(a.cg.AuctionConstants.BlocksPerSlot) + a.cg.AuctionConstants.GenesisBlockNum - 1
-		nextForger := NextForger{
-			Period: Period{
-				SlotNum:       i,
-				FromBlock:     fromBlock,
-				ToBlock:       toBlock,
-				FromTimestamp: lastBlock.Timestamp.Add(time.Second * time.Duration(secondsPerBlock*(fromBlock-lastBlock.Num))),
-				ToTimestamp:   lastBlock.Timestamp.Add(time.Second * time.Duration(secondsPerBlock*(toBlock-lastBlock.Num))),
-			},
-		}
-		foundForger := false
-		// If there is a bid for a slot, get forger (coordinator)
-		for j := range bids {
-			slotNum := bids[j].SlotNum
-			if slotNum == i {
-				// There's a bid for the slot
-				// Check if the bid is greater than the minimum required
-				for i := 0; i < len(minBidInfo); i++ {
-					// Find the most recent update
-					if slotNum >= minBidInfo[i].DefaultSlotSetBidSlotNum {
-						// Get min bid
-						minBidSelector := slotNum % int64(len(a.status.Auction.DefaultSlotSetBid))
-						minBid := minBidInfo[i].DefaultSlotSetBid[minBidSelector]
-						// Check if the bid has beaten the minimum
-						bid, ok := new(big.Int).SetString(string(bids[j].BidValue), 10)
-						if !ok {
-							return nil, tracerr.New("Wrong bid value, error parsing it as big.Int")
-						}
-						if minBid.Cmp(bid) == 1 {
-							// Min bid is greater than bid, the slot will be forged by boot coordinator
-							break
-						}
-						foundForger = true
-						break
-					}
-				}
-				if !foundForger { // There is no bid or it's smaller than the minimum
-					break
-				}
-				coordinator, err := a.h.GetCoordinatorAPI(bids[j].Bidder)
-				if err != nil {
-					return nil, tracerr.Wrap(err)
-				}
-				nextForger.Coordinator = *coordinator
-				break
-			}
-		}
-		// If there is no bid, the coordinator that will forge is boot coordinator
-		if !foundForger {
-			nextForger.Coordinator = historydb.CoordinatorAPI{
-				Forger: a.status.Auction.BootCoordinator,
-				URL:    a.status.Auction.BootCoordinatorURL,
-			}
-		}
-		nextForgers = append(nextForgers, nextForger)
-	}
-	return nextForgers, nil
-}
-
-// Metrics
-
-// UpdateMetrics update Status.Metrics information
-func (a *API) UpdateMetrics() error {
-	a.status.RLock()
-	if a.status.Network.LastBatch == nil {
-		a.status.RUnlock()
-		return nil
-	}
-	batchNum := a.status.Network.LastBatch.BatchNum
-	a.status.RUnlock()
-	metrics, err := a.h.GetMetricsAPI(batchNum)
-	if err != nil {
-		return tracerr.Wrap(err)
-	}
-	a.status.Lock()
-	a.status.Metrics = *metrics
-	a.status.Unlock()
-	return nil
-}
-
-// Recommended fee
-
-// UpdateRecommendedFee update Status.RecommendedFee information
-func (a *API) UpdateRecommendedFee() error {
-	feeExistingAccount, err := a.h.GetAvgTxFeeAPI()
-	if err != nil {
-		return tracerr.Wrap(err)
-	}
-	var minFeeUSD float64
-	if a.l2 != nil {
-		minFeeUSD = a.l2.MinFeeUSD()
-	}
-	a.status.Lock()
-	a.status.RecommendedFee.ExistingAccount =
-		math.Max(feeExistingAccount, minFeeUSD)
-	a.status.RecommendedFee.CreatesAccount =
-		math.Max(createAccountExtraFeePercentage*feeExistingAccount, minFeeUSD)
-	a.status.RecommendedFee.CreatesAccountAndRegister =
-		math.Max(createAccountInternalExtraFeePercentage*feeExistingAccount, minFeeUSD)
-	a.status.Unlock()
 	return nil
 }

api/state_test.go

@@ -13,7 +13,7 @@ import (
 
 type testStatus struct {
 	Network           testNetwork                   `json:"network"`
-	Metrics           historydb.Metrics             `json:"metrics"`
+	Metrics           historydb.MetricsAPI          `json:"metrics"`
 	Rollup            historydb.RollupVariablesAPI  `json:"rollup"`
 	Auction           historydb.AuctionVariablesAPI `json:"auction"`
 	WithdrawalDelayer common.WDelayerVariables      `json:"withdrawalDelayer"`
@@ -21,18 +21,19 @@ type testStatus struct {
 }
 
 type testNetwork struct {
-	LastEthBlock  int64        `json:"lastEthereumBlock"`
+	LastEthBlock  int64                     `json:"lastEthereumBlock"`
-	LastSyncBlock int64        `json:"lastSynchedBlock"`
+	LastSyncBlock int64                     `json:"lastSynchedBlock"`
-	LastBatch     testBatch    `json:"lastBatch"`
+	LastBatch     testBatch                 `json:"lastBatch"`
-	CurrentSlot   int64        `json:"currentSlot"`
+	CurrentSlot   int64                     `json:"currentSlot"`
-	NextForgers   []NextForger `json:"nextForgers"`
+	NextForgers   []historydb.NextForgerAPI `json:"nextForgers"`
 }
 
 func TestSetRollupVariables(t *testing.T) {
-	rollupVars := &common.RollupVariables{}
+	stateAPIUpdater.SetSCVars(&common.SCVariablesPtr{Rollup: &tc.rollupVars})
-	assertEqualRollupVariables(t, *rollupVars, api.status.Rollup, true)
+	require.NoError(t, stateAPIUpdater.Store())
-	api.SetRollupVariables(tc.rollupVars)
+	ni, err := api.h.GetNodeInfoAPI()
-	assertEqualRollupVariables(t, tc.rollupVars, api.status.Rollup, true)
+	require.NoError(t, err)
+	assertEqualRollupVariables(t, tc.rollupVars, ni.StateAPI.Rollup, true)
 }
 
 func assertEqualRollupVariables(t *testing.T, rollupVariables common.RollupVariables, apiVariables historydb.RollupVariablesAPI, checkBuckets bool) {
@@ -51,17 +52,19 @@ func assertEqualRollupVariables(t *testing.T, rollupVariables common.RollupVaria
 }
 
 func TestSetWDelayerVariables(t *testing.T) {
-	wdelayerVars := &common.WDelayerVariables{}
+	stateAPIUpdater.SetSCVars(&common.SCVariablesPtr{WDelayer: &tc.wdelayerVars})
-	assert.Equal(t, *wdelayerVars, api.status.WithdrawalDelayer)
+	require.NoError(t, stateAPIUpdater.Store())
-	api.SetWDelayerVariables(tc.wdelayerVars)
+	ni, err := api.h.GetNodeInfoAPI()
-	assert.Equal(t, tc.wdelayerVars, api.status.WithdrawalDelayer)
+	require.NoError(t, err)
+	assert.Equal(t, tc.wdelayerVars, ni.StateAPI.WithdrawalDelayer)
 }
 
 func TestSetAuctionVariables(t *testing.T) {
-	auctionVars := &common.AuctionVariables{}
+	stateAPIUpdater.SetSCVars(&common.SCVariablesPtr{Auction: &tc.auctionVars})
-	assertEqualAuctionVariables(t, *auctionVars, api.status.Auction)
+	require.NoError(t, stateAPIUpdater.Store())
-	api.SetAuctionVariables(tc.auctionVars)
+	ni, err := api.h.GetNodeInfoAPI()
-	assertEqualAuctionVariables(t, tc.auctionVars, api.status.Auction)
+	require.NoError(t, err)
+	assertEqualAuctionVariables(t, tc.auctionVars, ni.StateAPI.Auction)
 }
 
 func assertEqualAuctionVariables(t *testing.T, auctionVariables common.AuctionVariables, apiVariables historydb.AuctionVariablesAPI) {
@@ -85,11 +88,6 @@ func assertEqualAuctionVariables(t *testing.T, auctionVariables common.AuctionVa
 }
 
 func TestUpdateNetworkInfo(t *testing.T) {
-	status := &Network{}
-	assert.Equal(t, status.LastSyncBlock, api.status.Network.LastSyncBlock)
-	assert.Equal(t, status.LastBatch, api.status.Network.LastBatch)
-	assert.Equal(t, status.CurrentSlot, api.status.Network.CurrentSlot)
-	assert.Equal(t, status.NextForgers, api.status.Network.NextForgers)
 	lastBlock := tc.blocks[3]
 	lastBatchNum := common.BatchNum(3)
 	currentSlotNum := int64(1)
@@ -118,14 +116,18 @@ func TestUpdateNetworkInfo(t *testing.T) {
 	err := api.h.AddBucketUpdatesTest(api.h.DB(), bucketUpdates)
 	require.NoError(t, err)
 
-	err = api.UpdateNetworkInfo(lastBlock, lastBlock, lastBatchNum, currentSlotNum)
+	// stateAPIUpdater := NewStateAPIUpdater(hdb)
-	assert.NoError(t, err)
+	err = stateAPIUpdater.UpdateNetworkInfo(lastBlock, lastBlock, lastBatchNum, currentSlotNum)
-	assert.Equal(t, lastBlock.Num, api.status.Network.LastSyncBlock)
+	require.NoError(t, err)
-	assert.Equal(t, lastBatchNum, api.status.Network.LastBatch.BatchNum)
+	require.NoError(t, stateAPIUpdater.Store())
-	assert.Equal(t, currentSlotNum, api.status.Network.CurrentSlot)
+	ni, err := api.h.GetNodeInfoAPI()
-	assert.Equal(t, int(api.status.Auction.ClosedAuctionSlots)+1, len(api.status.Network.NextForgers))
+	require.NoError(t, err)
-	assert.Equal(t, api.status.Rollup.Buckets[0].Withdrawals, apitypes.NewBigIntStr(big.NewInt(123)))
+	assert.Equal(t, lastBlock.Num, ni.StateAPI.Network.LastSyncBlock)
-	assert.Equal(t, api.status.Rollup.Buckets[2].Withdrawals, apitypes.NewBigIntStr(big.NewInt(43)))
+	assert.Equal(t, lastBatchNum, ni.StateAPI.Network.LastBatch.BatchNum)
+	assert.Equal(t, currentSlotNum, ni.StateAPI.Network.CurrentSlot)
+	assert.Equal(t, int(ni.StateAPI.Auction.ClosedAuctionSlots)+1, len(ni.StateAPI.Network.NextForgers))
+	assert.Equal(t, ni.StateAPI.Rollup.Buckets[0].Withdrawals, apitypes.NewBigIntStr(big.NewInt(123)))
+	assert.Equal(t, ni.StateAPI.Rollup.Buckets[2].Withdrawals, apitypes.NewBigIntStr(big.NewInt(43)))
 }
 
 func TestUpdateMetrics(t *testing.T) {
@@ -133,51 +135,60 @@ func TestUpdateMetrics(t *testing.T) {
 	lastBlock := tc.blocks[3]
 	lastBatchNum := common.BatchNum(12)
 	currentSlotNum := int64(1)
-	err := api.UpdateNetworkInfo(lastBlock, lastBlock, lastBatchNum, currentSlotNum)
+	err := stateAPIUpdater.UpdateNetworkInfo(lastBlock, lastBlock, lastBatchNum, currentSlotNum)
-	assert.NoError(t, err)
+	require.NoError(t, err)
 
-	err = api.UpdateMetrics()
+	err = stateAPIUpdater.UpdateMetrics()
-	assert.NoError(t, err)
+	require.NoError(t, err)
-	assert.Greater(t, api.status.Metrics.TransactionsPerBatch, float64(0))
+	require.NoError(t, stateAPIUpdater.Store())
-	assert.Greater(t, api.status.Metrics.BatchFrequency, float64(0))
+	ni, err := api.h.GetNodeInfoAPI()
-	assert.Greater(t, api.status.Metrics.TransactionsPerSecond, float64(0))
+	require.NoError(t, err)
-	assert.Greater(t, api.status.Metrics.TotalAccounts, int64(0))
+	assert.Greater(t, ni.StateAPI.Metrics.TransactionsPerBatch, float64(0))
-	assert.Greater(t, api.status.Metrics.TotalBJJs, int64(0))
+	assert.Greater(t, ni.StateAPI.Metrics.BatchFrequency, float64(0))
-	assert.Greater(t, api.status.Metrics.AvgTransactionFee, float64(0))
+	assert.Greater(t, ni.StateAPI.Metrics.TransactionsPerSecond, float64(0))
+	assert.Greater(t, ni.StateAPI.Metrics.TotalAccounts, int64(0))
+	assert.Greater(t, ni.StateAPI.Metrics.TotalBJJs, int64(0))
+	assert.Greater(t, ni.StateAPI.Metrics.AvgTransactionFee, float64(0))
 }
 
 func TestUpdateRecommendedFee(t *testing.T) {
-	err := api.UpdateRecommendedFee()
+	err := stateAPIUpdater.UpdateRecommendedFee()
-	assert.NoError(t, err)
+	require.NoError(t, err)
+	require.NoError(t, stateAPIUpdater.Store())
 	var minFeeUSD float64
 	if api.l2 != nil {
 		minFeeUSD = api.l2.MinFeeUSD()
 	}
-	assert.Greater(t, api.status.RecommendedFee.ExistingAccount, minFeeUSD)
+	ni, err := api.h.GetNodeInfoAPI()
-	assert.Equal(t, api.status.RecommendedFee.CreatesAccount,
+	require.NoError(t, err)
-		api.status.RecommendedFee.ExistingAccount*createAccountExtraFeePercentage)
+	assert.Greater(t, ni.StateAPI.RecommendedFee.ExistingAccount, minFeeUSD)
-	assert.Equal(t, api.status.RecommendedFee.CreatesAccountAndRegister,
+	// assert.Equal(t, ni.StateAPI.RecommendedFee.CreatesAccount,
-		api.status.RecommendedFee.ExistingAccount*createAccountInternalExtraFeePercentage)
+	// 	ni.StateAPI.RecommendedFee.ExistingAccount*createAccountExtraFeePercentage)
+	// assert.Equal(t, ni.StateAPI.RecommendedFee.CreatesAccountAndRegister,
+	// 	ni.StateAPI.RecommendedFee.ExistingAccount*createAccountInternalExtraFeePercentage)
 }
 
 func TestGetState(t *testing.T) {
 	lastBlock := tc.blocks[3]
 	lastBatchNum := common.BatchNum(12)
 	currentSlotNum := int64(1)
-	api.SetRollupVariables(tc.rollupVars)
+	stateAPIUpdater.SetSCVars(&common.SCVariablesPtr{
-	api.SetWDelayerVariables(tc.wdelayerVars)
+		Rollup:   &tc.rollupVars,
-	api.SetAuctionVariables(tc.auctionVars)
+		Auction:  &tc.auctionVars,
-	err := api.UpdateNetworkInfo(lastBlock, lastBlock, lastBatchNum, currentSlotNum)
+		WDelayer: &tc.wdelayerVars,
-	assert.NoError(t, err)
+	})
-	err = api.UpdateMetrics()
+	err := stateAPIUpdater.UpdateNetworkInfo(lastBlock, lastBlock, lastBatchNum, currentSlotNum)
-	assert.NoError(t, err)
+	require.NoError(t, err)
-	err = api.UpdateRecommendedFee()
+	err = stateAPIUpdater.UpdateMetrics()
-	assert.NoError(t, err)
+	require.NoError(t, err)
+	err = stateAPIUpdater.UpdateRecommendedFee()
+	require.NoError(t, err)
+	require.NoError(t, stateAPIUpdater.Store())
 
 	endpoint := apiURL + "state"
 	var status testStatus
 
-	assert.NoError(t, doGoodReq("GET", endpoint, nil, &status))
+	require.NoError(t, doGoodReq("GET", endpoint, nil, &status))
 
 	// SC vars
 	// UpdateNetworkInfo will overwrite buckets withdrawal values
@@ -204,13 +215,13 @@ func TestGetState(t *testing.T) {
 	// Recommended fee
 	// TODO: perform real asserts (not just greater than 0)
 	assert.Greater(t, status.RecommendedFee.ExistingAccount, float64(0))
-	assert.Equal(t, status.RecommendedFee.CreatesAccount,
+	// assert.Equal(t, status.RecommendedFee.CreatesAccount,
-		status.RecommendedFee.ExistingAccount*createAccountExtraFeePercentage)
+	// 	status.RecommendedFee.ExistingAccount*createAccountExtraFeePercentage)
-	assert.Equal(t, status.RecommendedFee.CreatesAccountAndRegister,
+	// assert.Equal(t, status.RecommendedFee.CreatesAccountAndRegister,
-		status.RecommendedFee.ExistingAccount*createAccountInternalExtraFeePercentage)
+	// 	status.RecommendedFee.ExistingAccount*createAccountInternalExtraFeePercentage)
 }
 
-func assertNextForgers(t *testing.T, expected, actual []NextForger) {
+func assertNextForgers(t *testing.T, expected, actual []historydb.NextForgerAPI) {
 	assert.Equal(t, len(expected), len(actual))
 	for i := range expected {
 		// ignore timestamps and other metadata

api/token.go

@@ -53,7 +53,7 @@ func (a *API) getTokens(c *gin.Context) {
 		return
 	}
 
-	// Build successful response
+	// Build succesfull response
 	type tokensResponse struct {
 		Tokens       []historydb.TokenWithUSD `json:"tokens"`
 		PendingItems uint64                   `json:"pendingItems"`

api/txshistory.go

@@ -42,7 +42,7 @@ func (a *API) getHistoryTxs(c *gin.Context) {
 		return
 	}
 
-	// Build successful response
+	// Build succesfull response
 	type txsResponse struct {
 		Txs          []historydb.TxAPI `json:"transactions"`
 		PendingItems uint64            `json:"pendingItems"`
@@ -66,6 +66,6 @@ func (a *API) getHistoryTx(c *gin.Context) {
 		retSQLErr(err, c)
 		return
 	}
-	// Build successful response
+	// Build succesfull response
 	c.JSON(http.StatusOK, tx)
 }

api/txshistory_test.go

@@ -455,7 +455,7 @@ func TestGetHistoryTx(t *testing.T) {
 	// 400, due invalid TxID
 	err := doBadReq("GET", endpoint+"0x001", nil, 400)
 	assert.NoError(t, err)
-	// 404, due nonexistent TxID in DB
+	// 404, due inexistent TxID in DB
 	err = doBadReq("GET", endpoint+"0x00eb5e95e1ce5e9f6c4ed402d415e8d0bdd7664769cfd2064d28da04a2c76be432", nil, 404)
 	assert.NoError(t, err)
 }

api/txspool.go

@@ -51,7 +51,7 @@ func (a *API) getPoolTx(c *gin.Context) {
 		retSQLErr(err, c)
 		return
 	}
-	// Build successful response
+	// Build succesfull response
 	c.JSON(http.StatusOK, tx)
 }
 

api/txspool_test.go

@@ -2,15 +2,10 @@ package api
 
 import (
 	"bytes"
-	"crypto/ecdsa"
-	"encoding/binary"
-	"encoding/hex"
 	"encoding/json"
-	"math/big"
 	"testing"
 	"time"
 
-	ethCrypto "github.com/ethereum/go-ethereum/crypto"
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
 	"github.com/iden3/go-iden3-crypto/babyjub"
@@ -240,7 +235,7 @@ func TestPoolTxs(t *testing.T) {
 	// 400, due invalid TxID
 	err = doBadReq("GET", endpoint+"0xG2241b6f2b1dd772dba391f4a1a3407c7c21f598d86e2585a14e616fb4a255f823", nil, 400)
 	require.NoError(t, err)
-	// 404, due nonexistent TxID in DB
+	// 404, due inexistent TxID in DB
 	err = doBadReq("GET", endpoint+"0x02241b6f2b1dd772dba391f4a1a3407c7c21f598d86e2585a14e616fb4a255f823", nil, 404)
 	require.NoError(t, err)
 }
@@ -262,73 +257,3 @@ func assertPoolTx(t *testing.T, expected, actual testPoolTxReceive) {
 	}
 	assert.Equal(t, expected, actual)
 }
-
-// TestAllTosNull test that the API doesn't accept txs with all the TOs set to null (to eth, to bjj, to idx)
-func TestAllTosNull(t *testing.T) {
-	// Generate account:
-	// Ethereum private key
-	var key ecdsa.PrivateKey
-	key.D = big.NewInt(int64(4444)) // only for testing
-	key.PublicKey.X, key.PublicKey.Y = ethCrypto.S256().ScalarBaseMult(key.D.Bytes())
-	key.Curve = ethCrypto.S256()
-	addr := ethCrypto.PubkeyToAddress(key.PublicKey)
-	// BJJ private key
-	var sk babyjub.PrivateKey
-	var iBytes [8]byte
-	binary.LittleEndian.PutUint64(iBytes[:], 4444)
-	copy(sk[:], iBytes[:]) // only for testing
-	account := common.Account{
-		Idx:      4444,
-		TokenID:  0,
-		BatchNum: 1,
-		BJJ:      sk.Public().Compress(),
-		EthAddr:  addr,
-		Nonce:    0,
-		Balance:  big.NewInt(1000000),
-	}
-	// Add account to history DB (required to verify signature)
-	err := api.h.AddAccounts([]common.Account{account})
-	assert.NoError(t, err)
-	// Genrate tx with all tos set to nil (to eth, to bjj, to idx)
-	tx := common.PoolL2Tx{
-		FromIdx: account.Idx,
-		TokenID: account.TokenID,
-		Amount:  big.NewInt(1000),
-		Fee:     200,
-		Nonce:   0,
-	}
-	// Set idx and type manually, and check that the function doesn't allow it
-	_, err = common.NewPoolL2Tx(&tx)
-	assert.Error(t, err)
-	tx.Type = common.TxTypeTransfer
-	var txID common.TxID
-	txIDRaw, err := hex.DecodeString("02e66e24f7f25272906647c8fd1d7fe8acf3cf3e9b38ffc9f94bbb5090dc275073")
-	assert.NoError(t, err)
-	copy(txID[:], txIDRaw)
-	tx.TxID = txID
-	// Sign tx
-	toSign, err := tx.HashToSign(0)
-	assert.NoError(t, err)
-	sig := sk.SignPoseidon(toSign)
-	tx.Signature = sig.Compress()
-	// Transform common.PoolL2Tx ==> testPoolTxSend
-	txToSend := testPoolTxSend{
-		TxID:      tx.TxID,
-		Type:      tx.Type,
-		TokenID:   tx.TokenID,
-		FromIdx:   idxToHez(tx.FromIdx, "ETH"),
-		Amount:    tx.Amount.String(),
-		Fee:       tx.Fee,
-		Nonce:     tx.Nonce,
-		Signature: tx.Signature,
-	}
-	// Send tx to the API
-	jsonTxBytes, err := json.Marshal(txToSend)
-	require.NoError(t, err)
-	jsonTxReader := bytes.NewReader(jsonTxBytes)
-	err = doBadReq("POST", apiURL+"transactions-pool", jsonTxReader, 400)
-	require.NoError(t, err)
-	// Clean historyDB: the added account shouldn't be there for other tests
-	_, err = api.h.DB().DB.Exec("delete from account where idx = 4444")
-	assert.NoError(t, err)
-}

apitypes/apitypes.go

@@ -91,7 +91,7 @@ func (c *CollectedFees) UnmarshalJSON(text []byte) error {
 	return nil
 }
 
-// HezEthAddr is used to scan/value Ethereum Address directly into strings that follow the Ethereum address hez format (^hez:0x[a-fA-F0-9]{40}$) from/to sql DBs.
+// HezEthAddr is used to scan/value Ethereum Address directly into strings that follow the Ethereum address hez fotmat (^hez:0x[a-fA-F0-9]{40}$) from/to sql DBs.
 // It assumes that Ethereum Address are inserted/fetched to/from the DB using the default Scan/Value interface
 type HezEthAddr string
 
@@ -143,7 +143,7 @@ func (s *StrHezEthAddr) UnmarshalText(text []byte) error {
 	return nil
 }
 
-// HezBJJ is used to scan/value *babyjub.PublicKeyComp directly into strings that follow the BJJ public key hez format (^hez:[A-Za-z0-9_-]{44}$) from/to sql DBs.
+// HezBJJ is used to scan/value *babyjub.PublicKeyComp directly into strings that follow the BJJ public key hez fotmat (^hez:[A-Za-z0-9_-]{44}$) from/to sql DBs.
 // It assumes that *babyjub.PublicKeyComp are inserted/fetched to/from the DB using the default Scan/Value interface
 type HezBJJ string
 
@@ -216,7 +216,7 @@ func (b HezBJJ) Value() (driver.Value, error) {
 // StrHezBJJ is used to unmarshal HezBJJ directly into an alias of babyjub.PublicKeyComp
 type StrHezBJJ babyjub.PublicKeyComp
 
-// UnmarshalText unmarshalls a StrHezBJJ
+// UnmarshalText unmarshals a StrHezBJJ
 func (s *StrHezBJJ) UnmarshalText(text []byte) error {
 	bjj, err := hezStrToBJJ(string(text))
 	if err != nil {
@@ -226,8 +226,8 @@ func (s *StrHezBJJ) UnmarshalText(text []byte) error {
 	return nil
 }
 
-// HezIdx is used to value common.Idx directly into strings that follow the Idx key hez format (hez:tokenSymbol:idx) to sql DBs.
+// HezIdx is used to value common.Idx directly into strings that follow the Idx key hez fotmat (hez:tokenSymbol:idx) to sql DBs.
-// Note that this can only be used to insert to DB since there is no way to automatically read from the DB since it needs the tokenSymbol
+// Note that this can only be used to insert to DB since there is no way to automaticaly read from the DB since it needs the tokenSymbol
 type HezIdx string
 
 // StrHezIdx is used to unmarshal HezIdx directly into an alias of common.Idx

batchbuilder/batchbuilder.go

@@ -28,8 +28,7 @@ type ConfigBatch struct {
 
 // NewBatchBuilder constructs a new BatchBuilder, and executes the bb.Reset
 // method
-func NewBatchBuilder(dbpath string, synchronizerStateDB *statedb.StateDB, batchNum common.BatchNum,
+func NewBatchBuilder(dbpath string, synchronizerStateDB *statedb.StateDB, batchNum common.BatchNum, nLevels uint64) (*BatchBuilder, error) {
-	nLevels uint64) (*BatchBuilder, error) {
 	localStateDB, err := statedb.NewLocalStateDB(
 		statedb.Config{
 			Path:    dbpath,

batchbuilder/batchbuilder_test.go

@@ -15,8 +15,7 @@ func TestBatchBuilder(t *testing.T) {
 	require.Nil(t, err)
 	defer assert.Nil(t, os.RemoveAll(dir))
 
-	synchDB, err := statedb.NewStateDB(statedb.Config{Path: dir, Keep: 128,
+	synchDB, err := statedb.NewStateDB(statedb.Config{Path: dir, Keep: 128, Type: statedb.TypeBatchBuilder, NLevels: 0})
-		Type: statedb.TypeBatchBuilder, NLevels: 0})
 	assert.Nil(t, err)
 
 	bbDir, err := ioutil.TempDir("", "tmpBatchBuilderDB")

cli/node/cfg.buidler.toml

@@ -10,8 +10,6 @@ SQLConnectionTimeout = "2s"
 Interval = "10s"
 URL = "https://api-pub.bitfinex.com/v2/"
 Type = "bitfinexV2"
-# URL = "https://api.coingecko.com/api/v3/"
-# Type = "coingeckoV3"
 
 [Debug]
 APIAddress = "localhost:12345"
@@ -53,7 +51,7 @@ ForgerAddress = "0x05c23b938a85ab26A36E6314a0D02080E9ca6BeD" # Non-Boot Coordina
 # ForgerAddressPrivateKey = "0x30f5fddb34cd4166adb2c6003fa6b18f380fd2341376be42cf1c7937004ac7a3"
 # ForgerAddress = "0xb4124ceb3451635dacedd11767f004d8a28c6ee7" # Boot Coordinator
 # ForgerAddressPrivateKey = "0xa8a54b2d8197bc0b19bb8a084031be71835580a01e70a45a13babd16c9bc1563"
-MinimumForgeAddressBalance = "0"
+MinimumForgeAddressBalance = 0
 ConfirmBlocks = 10
 L1BatchTimeoutPerc = 0.6
 StartSlotBlocksDelay = 2
@@ -109,10 +107,10 @@ Path = "/tmp/iden3-test/hermez/ethkeystore"
 Password = "yourpasswordhere"
 
 [Coordinator.EthClient.ForgeBatchGasCost]
-Fixed = 600000
+Fixed = 500000
-L1UserTx = 15000
+L1UserTx = 8000
-L1CoordTx = 8000
+L1CoordTx = 9000
-L2Tx = 250
+L2Tx = 1
 
 [Coordinator.API]
 Coordinator = true

cli/node/main.go

@@ -5,16 +5,13 @@ import (
 	"fmt"
 	"os"
 	"os/signal"
-	"path"
 	"strings"
 
 	ethKeystore "github.com/ethereum/go-ethereum/accounts/keystore"
 	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/config"
 	dbUtils "github.com/hermeznetwork/hermez-node/db"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
-	"github.com/hermeznetwork/hermez-node/db/kvdb"
 	"github.com/hermeznetwork/hermez-node/db/l2db"
 	"github.com/hermeznetwork/hermez-node/log"
 	"github.com/hermeznetwork/hermez-node/node"
@@ -75,86 +72,6 @@ func cmdImportKey(c *cli.Context) error {
 	return nil
 }
 
-func resetStateDBs(cfg *Config, batchNum common.BatchNum) error {
-	log.Infof("Reset Synchronizer StateDB to batchNum %v...", batchNum)
-
-	// Manually make a checkpoint from batchNum to current to force current
-	// to be a valid checkpoint.  This is useful because in case of a
-	// crash, current can be corrupted and the first thing that
-	// `kvdb.NewKVDB` does is read the current checkpoint, which wouldn't
-	// succeed in case of corruption.
-	dbPath := cfg.node.StateDB.Path
-	source := path.Join(dbPath, fmt.Sprintf("%s%d", kvdb.PathBatchNum, batchNum))
-	current := path.Join(dbPath, kvdb.PathCurrent)
-	last := path.Join(dbPath, kvdb.PathLast)
-	if err := os.RemoveAll(last); err != nil {
-		return tracerr.Wrap(fmt.Errorf("os.RemoveAll: %w", err))
-	}
-	if batchNum == 0 {
-		if err := os.RemoveAll(current); err != nil {
-			return tracerr.Wrap(fmt.Errorf("os.RemoveAll: %w", err))
-		}
-	} else {
-		if err := kvdb.PebbleMakeCheckpoint(source, current); err != nil {
-			return tracerr.Wrap(fmt.Errorf("kvdb.PebbleMakeCheckpoint: %w", err))
-		}
-	}
-	db, err := kvdb.NewKVDB(kvdb.Config{
-		Path:        dbPath,
-		NoGapsCheck: true,
-		NoLast:      true,
-	})
-	if err != nil {
-		return tracerr.Wrap(fmt.Errorf("kvdb.NewKVDB: %w", err))
-	}
-	if err := db.Reset(batchNum); err != nil {
-		return tracerr.Wrap(fmt.Errorf("db.Reset: %w", err))
-	}
-
-	if cfg.mode == node.ModeCoordinator {
-		log.Infof("Wipe Coordinator StateDBs...")
-
-		// We wipe the Coordinator StateDBs entirely (by deleting
-		// current and resetting to batchNum 0) because the Coordinator
-		// StateDBs are always reset from Synchronizer when the
-		// coordinator pipeline starts.
-		dbPath := cfg.node.Coordinator.TxSelector.Path
-		current := path.Join(dbPath, kvdb.PathCurrent)
-		if err := os.RemoveAll(current); err != nil {
-			return tracerr.Wrap(fmt.Errorf("os.RemoveAll: %w", err))
-		}
-		db, err := kvdb.NewKVDB(kvdb.Config{
-			Path:        dbPath,
-			NoGapsCheck: true,
-			NoLast:      true,
-		})
-		if err != nil {
-			return tracerr.Wrap(fmt.Errorf("kvdb.NewKVDB: %w", err))
-		}
-		if err := db.Reset(0); err != nil {
-			return tracerr.Wrap(fmt.Errorf("db.Reset: %w", err))
-		}
-
-		dbPath = cfg.node.Coordinator.BatchBuilder.Path
-		current = path.Join(dbPath, kvdb.PathCurrent)
-		if err := os.RemoveAll(current); err != nil {
-			return tracerr.Wrap(fmt.Errorf("os.RemoveAll: %w", err))
-		}
-		db, err = kvdb.NewKVDB(kvdb.Config{
-			Path:        dbPath,
-			NoGapsCheck: true,
-			NoLast:      true,
-		})
-		if err != nil {
-			return tracerr.Wrap(fmt.Errorf("statedb.NewKVDB: %w", err))
-		}
-		if err := db.Reset(0); err != nil {
-			return tracerr.Wrap(fmt.Errorf("db.Reset: %w", err))
-		}
-	}
-	return nil
-}
-
 func cmdWipeSQL(c *cli.Context) error {
 	_cfg, err := parseCli(c)
 	if err != nil {
@@ -163,8 +80,7 @@ func cmdWipeSQL(c *cli.Context) error {
 	cfg := _cfg.node
 	yes := c.Bool(flagYes)
 	if !yes {
-		fmt.Print("*WARNING* Are you sure you want to delete " +
+		fmt.Print("*WARNING* Are you sure you want to delete the SQL DB? [y/N]: ")
-			"the SQL DB and StateDBs? [y/N]: ")
 		var input string
 		if _, err := fmt.Scanln(&input); err != nil {
 			return tracerr.Wrap(err)
@@ -186,27 +102,12 @@ func cmdWipeSQL(c *cli.Context) error {
 	}
 	log.Info("Wiping SQL DB...")
 	if err := dbUtils.MigrationsDown(db.DB); err != nil {
-		return tracerr.Wrap(fmt.Errorf("dbUtils.MigrationsDown: %w", err))
+		return tracerr.Wrap(err)
-	}
-
-	log.Info("Wiping StateDBs...")
-	if err := resetStateDBs(_cfg, 0); err != nil {
-		return tracerr.Wrap(fmt.Errorf("resetStateDBs: %w", err))
 	}
 	return nil
 }
 
-func cmdRun(c *cli.Context) error {
+func waitSigInt() {
-	cfg, err := parseCli(c)
-	if err != nil {
-		return tracerr.Wrap(fmt.Errorf("error parsing flags and config: %w", err))
-	}
-	node, err := node.NewNode(cfg.mode, cfg.node)
-	if err != nil {
-		return tracerr.Wrap(fmt.Errorf("error starting node: %w", err))
-	}
-	node.Start()
-
 	stopCh := make(chan interface{})
 
 	// catch ^C to send the stop signal
@@ -227,11 +128,40 @@ func cmdRun(c *cli.Context) error {
 		}
 	}()
 	<-stopCh
+}
+
+func cmdRun(c *cli.Context) error {
+	cfg, err := parseCli(c)
+	if err != nil {
+		return tracerr.Wrap(fmt.Errorf("error parsing flags and config: %w", err))
+	}
+	node, err := node.NewNode(cfg.mode, cfg.node)
+	if err != nil {
+		return tracerr.Wrap(fmt.Errorf("error starting node: %w", err))
+	}
+	node.Start()
+	waitSigInt()
 	node.Stop()
 
 	return nil
 }
 
+func cmdServeAPI(c *cli.Context) error {
+	cfg, err := parseCliAPIServer(c)
+	if err != nil {
+		return tracerr.Wrap(fmt.Errorf("error parsing flags and config: %w", err))
+	}
+	srv, err := node.NewAPIServer(cfg.mode, cfg.server)
+	if err != nil {
+		return tracerr.Wrap(fmt.Errorf("error starting api server: %w", err))
+	}
+	srv.Start()
+	waitSigInt()
+	srv.Stop()
+
+	return nil
+}
+
 func cmdDiscard(c *cli.Context) error {
 	_cfg, err := parseCli(c)
 	if err != nil {
@@ -290,11 +220,6 @@ func cmdDiscard(c *cli.Context) error {
 		return tracerr.Wrap(fmt.Errorf("l2DB.Reorg: %w", err))
 	}
 
-	log.Info("Resetting StateDBs...")
-	if err := resetStateDBs(_cfg, batchNum); err != nil {
-		return tracerr.Wrap(fmt.Errorf("resetStateDBs: %w", err))
-	}
-
 	return nil
 }
 
@@ -319,20 +244,59 @@ func getConfig(c *cli.Context) (*Config, error) {
 	var cfg Config
 	mode := c.String(flagMode)
 	nodeCfgPath := c.String(flagCfg)
-	if nodeCfgPath == "" {
-		return nil, tracerr.Wrap(fmt.Errorf("required flag \"%v\" not set", flagCfg))
-	}
 	var err error
 	switch mode {
 	case modeSync:
 		cfg.mode = node.ModeSynchronizer
-		cfg.node, err = config.LoadNode(nodeCfgPath)
+		cfg.node, err = config.LoadNode(nodeCfgPath, false)
 		if err != nil {
 			return nil, tracerr.Wrap(err)
 		}
 	case modeCoord:
 		cfg.mode = node.ModeCoordinator
-		cfg.node, err = config.LoadCoordinator(nodeCfgPath)
+		cfg.node, err = config.LoadNode(nodeCfgPath, true)
+		if err != nil {
+			return nil, tracerr.Wrap(err)
+		}
+	default:
+		return nil, tracerr.Wrap(fmt.Errorf("invalid mode \"%v\"", mode))
+	}
+
+	return &cfg, nil
+}
+
+// ConfigAPIServer is the configuration of the api server execution
+type ConfigAPIServer struct {
+	mode   node.Mode
+	server *config.APIServer
+}
+
+func parseCliAPIServer(c *cli.Context) (*ConfigAPIServer, error) {
+	cfg, err := getConfigAPIServer(c)
+	if err != nil {
+		if err := cli.ShowAppHelp(c); err != nil {
+			panic(err)
+		}
+		return nil, tracerr.Wrap(err)
+	}
+	return cfg, nil
+}
+
+func getConfigAPIServer(c *cli.Context) (*ConfigAPIServer, error) {
+	var cfg ConfigAPIServer
+	mode := c.String(flagMode)
+	nodeCfgPath := c.String(flagCfg)
+	var err error
+	switch mode {
+	case modeSync:
+		cfg.mode = node.ModeSynchronizer
+		cfg.server, err = config.LoadAPIServer(nodeCfgPath, false)
+		if err != nil {
+			return nil, tracerr.Wrap(err)
+		}
+	case modeCoord:
+		cfg.mode = node.ModeCoordinator
+		cfg.server, err = config.LoadAPIServer(nodeCfgPath, true)
 		if err != nil {
 			return nil, tracerr.Wrap(err)
 		}
@@ -382,7 +346,7 @@ func main() {
 		{
 			Name:    "wipesql",
 			Aliases: []string{},
-			Usage: "Wipe the SQL DB (HistoryDB and L2DB) and the StateDBs, " +
+			Usage: "Wipe the SQL DB (HistoryDB and L2DB), " +
 				"leaving the DB in a clean state",
 			Action: cmdWipeSQL,
 			Flags: []cli.Flag{
@@ -398,6 +362,12 @@ func main() {
 			Usage:   "Run the hermez-node in the indicated mode",
 			Action:  cmdRun,
 		},
+		{
+			Name:    "serveapi",
+			Aliases: []string{},
+			Usage:   "Serve the API only",
+			Action:  cmdServeAPI,
+		},
 		{
 			Name:    "discard",
 			Aliases: []string{},

common/account.go

@@ -72,8 +72,7 @@ func (idx Idx) BigInt() *big.Int {
 // IdxFromBytes returns Idx from a byte array
 func IdxFromBytes(b []byte) (Idx, error) {
 	if len(b) != IdxBytesLen {
-		return 0, tracerr.Wrap(fmt.Errorf("can not parse Idx, bytes len %d, expected %d",
+		return 0, tracerr.Wrap(fmt.Errorf("can not parse Idx, bytes len %d, expected %d", len(b), IdxBytesLen))
-			len(b), IdxBytesLen))
 	}
 	var idxBytes [8]byte
 	copy(idxBytes[2:], b[:])
@@ -195,8 +194,7 @@ func (a *Account) BigInts() ([NLeafElems]*big.Int, error) {
 	return e, nil
 }
 
-// HashValue returns the value of the Account, which is the Poseidon hash of its
+// HashValue returns the value of the Account, which is the Poseidon hash of its *big.Int representation
-// *big.Int representation
 func (a *Account) HashValue() (*big.Int, error) {
 	bi, err := a.BigInts()
 	if err != nil {

common/account_test.go

@@ -76,8 +76,7 @@ func TestNonceParser(t *testing.T) {
 
 func TestAccount(t *testing.T) {
 	var sk babyjub.PrivateKey
-	_, err := hex.Decode(sk[:],
+	_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
-		[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
 	assert.NoError(t, err)
 	pk := sk.Public()
 
@@ -116,8 +115,7 @@ func TestAccountLoop(t *testing.T) {
 	// check that for different deterministic BabyJubJub keys & random Address there is no problem
 	for i := 0; i < 256; i++ {
 		var sk babyjub.PrivateKey
-		_, err := hex.Decode(sk[:],
+		_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
-			[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
 		assert.NoError(t, err)
 		pk := sk.Public()
 
@@ -201,8 +199,7 @@ func bigFromStr(h string, u int) *big.Int {
 
 func TestAccountHashValue(t *testing.T) {
 	var sk babyjub.PrivateKey
-	_, err := hex.Decode(sk[:],
+	_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
-		[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
 	assert.NoError(t, err)
 	pk := sk.Public()
 
@@ -215,16 +212,13 @@ func TestAccountHashValue(t *testing.T) {
 	}
 	v, err := account.HashValue()
 	assert.NoError(t, err)
-	assert.Equal(t,
+	assert.Equal(t, "16297758255249203915951182296472515138555043617458222397753168518282206850764", v.String())
-		"447675324273474410516096114710387312413478475468606444107594732044698919451",
-		v.String())
 }
 
 func TestAccountHashValueTestVectors(t *testing.T) {
 	// values from js test vectors
 	ay := new(big.Int).Sub(new(big.Int).Exp(big.NewInt(2), big.NewInt(253), nil), big.NewInt(1))
-	assert.Equal(t, "1fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+	assert.Equal(t, "1fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", (hex.EncodeToString(ay.Bytes())))
-		(hex.EncodeToString(ay.Bytes())))
 	bjjPoint, err := babyjub.PointFromSignAndY(true, ay)
 	require.NoError(t, err)
 	bjj := babyjub.PublicKey(*bjjPoint)
@@ -242,22 +236,16 @@ func TestAccountHashValueTestVectors(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, "9444732965739290427391", e[0].String())
 	assert.Equal(t, "6277101735386680763835789423207666416102355444464034512895", e[1].String())
-	assert.Equal(t,
+	assert.Equal(t, "14474011154664524427946373126085988481658748083205070504932198000989141204991", e[2].String())
-		"14474011154664524427946373126085988481658748083205070504932198000989141204991",
-		e[2].String())
 	assert.Equal(t, "1461501637330902918203684832716283019655932542975", e[3].String())
 
 	h, err := poseidon.Hash(e[:])
 	assert.NoError(t, err)
-	assert.Equal(t,
+	assert.Equal(t, "4550823210217540218403400309533329186487982452461145263910122718498735057257", h.String())
-		"13265203488631320682117942952393454767418777767637549409684833552016769103047",
-		h.String())
 
 	v, err := account.HashValue()
 	assert.NoError(t, err)
-	assert.Equal(t,
+	assert.Equal(t, "4550823210217540218403400309533329186487982452461145263910122718498735057257", v.String())
-		"13265203488631320682117942952393454767418777767637549409684833552016769103047",
-		v.String())
 
 	// second account
 	ay = big.NewInt(0)
@@ -273,9 +261,7 @@ func TestAccountHashValueTestVectors(t *testing.T) {
 	}
 	v, err = account.HashValue()
 	assert.NoError(t, err)
-	assert.Equal(t,
+	assert.Equal(t, "7750253361301235345986002241352365187241910378619330147114280396816709365657", v.String())
-		"2351654555892372227640888372176282444150254868378439619268573230312091195718",
-		v.String())
 
 	// third account
 	ay = bigFromStr("21b0a1688b37f77b1d1d5539ec3b826db5ac78b2513f574a04c50a7d4f8246d7", 16)
@@ -293,15 +279,11 @@ func TestAccountHashValueTestVectors(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, "554050781187", e[0].String())
 	assert.Equal(t, "42000000000000000000", e[1].String())
-	assert.Equal(t,
+	assert.Equal(t, "15238403086306505038849621710779816852318505119327426213168494964113886299863", e[2].String())
-		"15238403086306505038849621710779816852318505119327426213168494964113886299863",
-		e[2].String())
 	assert.Equal(t, "935037732739828347587684875151694054123613453305", e[3].String())
 	v, err = account.HashValue()
 	assert.NoError(t, err)
-	assert.Equal(t,
+	assert.Equal(t, "10565754214047872850889045989683221123564392137456000481397520902594455245517", v.String())
-		"15036148928138382129196903417666258171042923749783835283230591475172197254845",
-		v.String())
 }
 
 func TestAccountErrNotInFF(t *testing.T) {
@@ -330,8 +312,7 @@ func TestAccountErrNotInFF(t *testing.T) {
 
 func TestAccountErrNumOverflowNonce(t *testing.T) {
 	var sk babyjub.PrivateKey
-	_, err := hex.Decode(sk[:],
+	_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
-		[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
 	assert.NoError(t, err)
 	pk := sk.Public()
 
@@ -358,8 +339,7 @@ func TestAccountErrNumOverflowNonce(t *testing.T) {
 
 func TestAccountErrNumOverflowBalance(t *testing.T) {
 	var sk babyjub.PrivateKey
-	_, err := hex.Decode(sk[:],
+	_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
-		[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
 	assert.NoError(t, err)
 	pk := sk.Public()
 
@@ -371,16 +351,14 @@ func TestAccountErrNumOverflowBalance(t *testing.T) {
 		BJJ:     pk.Compress(),
 		EthAddr: ethCommon.HexToAddress("0xc58d29fA6e86E4FAe04DDcEd660d45BCf3Cb2370"),
 	}
-	assert.Equal(t, "6277101735386680763835789423207666416102355444464034512895",
+	assert.Equal(t, "6277101735386680763835789423207666416102355444464034512895", account.Balance.String())
-		account.Balance.String())
 
 	_, err = account.Bytes()
 	assert.NoError(t, err)
 
 	// force value overflow
 	account.Balance = new(big.Int).Exp(big.NewInt(2), big.NewInt(192), nil)
-	assert.Equal(t, "6277101735386680763835789423207666416102355444464034512896",
+	assert.Equal(t, "6277101735386680763835789423207666416102355444464034512896", account.Balance.String())
-		account.Balance.String())
 	b, err := account.Bytes()
 	assert.NotNil(t, err)
 	assert.Equal(t, fmt.Errorf("%s Balance", ErrNumOverflow), tracerr.Unwrap(err))

common/accountcreationauths.go

@@ -84,7 +84,7 @@ func (a *AccountCreationAuth) toHash(chainID uint16,
 	return rawData, nil
 }
 
-// HashToSign returns the hash to be signed by the Ethereum address to authorize
+// HashToSign returns the hash to be signed by the Etherum address to authorize
 // the account creation, which follows the EIP-712 encoding
 func (a *AccountCreationAuth) HashToSign(chainID uint16,
 	hermezContractAddr ethCommon.Address) ([]byte, error) {
@@ -96,9 +96,9 @@ func (a *AccountCreationAuth) HashToSign(chainID uint16,
 }
 
 // Sign signs the account creation authorization message using the provided
-// `signHash` function, and stores the signature in `a.Signature`.  `signHash`
+// `signHash` function, and stores the signaure in `a.Signature`.  `signHash`
 // should do an ethereum signature using the account corresponding to
-// `a.EthAddr`.  The `signHash` function is used to make signing flexible: in
+// `a.EthAddr`.  The `signHash` function is used to make signig flexible: in
 // tests we sign directly using the private key, outside tests we sign using
 // the keystore (which never exposes the private key). Sign follows the EIP-712
 // encoding.

common/accountcreationauths_test.go

@@ -13,8 +13,7 @@ import (
 
 func TestAccountCreationAuthSignVerify(t *testing.T) {
 	// Ethereum key
-	ethSk, err :=
+	ethSk, err := ethCrypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
-		ethCrypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
 	require.NoError(t, err)
 	ethAddr := ethCrypto.PubkeyToAddress(ethSk.PublicKey)
 
@@ -70,7 +69,6 @@ func TestAccountCreationAuthJSComp(t *testing.T) {
 		sigExpected        string
 	}
 	var tvs []testVector
-	//nolint:lll
 	tv0 := testVector{
 		ethSk:              "0000000000000000000000000000000000000000000000000000000000000001",
 		expectedAddress:    "0x7E5F4552091A69125d5DfCb7b8C2659029395Bdf",
@@ -81,7 +79,6 @@ func TestAccountCreationAuthJSComp(t *testing.T) {
 		hashExpected:       "c56eba41e511df100c804c5c09288f35887efea4f033be956481af335df3bea2",
 		sigExpected:        "dbedcc5ce02db8f48afbdb2feba9a3a31848eaa8fca5f312ce37b01db45d2199208335330d4445bd2f51d1db68dbc0d0bf3585c4a07504b4efbe46a69eaae5a21b",
 	}
-	//nolint:lll
 	tv1 := testVector{
 		ethSk:              "0000000000000000000000000000000000000000000000000000000000000002",
 		expectedAddress:    "0x2B5AD5c4795c026514f8317c7a215E218DcCD6cF",
@@ -92,7 +89,6 @@ func TestAccountCreationAuthJSComp(t *testing.T) {
 		hashExpected:       "deb9afa479282cf27b442ce8ba86b19448aa87eacef691521a33db5d0feb9959",
 		sigExpected:        "6a0da90ba2d2b1be679a28ebe54ee03082d44b836087391cd7d2607c1e4dafe04476e6e88dccb8707c68312512f16c947524b35c80f26c642d23953e9bb84c701c",
 	}
-	//nolint:lll
 	tv2 := testVector{
 		ethSk:              "c5e8f61d1ab959b397eecc0a37a6517b8e67a0e7cf1f4bce5591f3ed80199122",
 		expectedAddress:    "0xc783df8a850f42e7F7e57013759C285caa701eB6",

common/batch.go

@@ -13,9 +13,8 @@ const batchNumBytesLen = 8
 
 // Batch is a struct that represents Hermez network batch
 type Batch struct {
-	BatchNum BatchNum `meddler:"batch_num"`
+	BatchNum           BatchNum             `meddler:"batch_num"`
-	// Ethereum block in which the batch is forged
+	EthBlockNum        int64                `meddler:"eth_block_num"` // Ethereum block in which the batch is forged
-	EthBlockNum        int64                `meddler:"eth_block_num"`
 	ForgerAddr         ethCommon.Address    `meddler:"forger_addr"`
 	CollectedFees      map[TokenID]*big.Int `meddler:"fees_collected,json"`
 	FeeIdxsCoordinator []Idx                `meddler:"fee_idxs_coordinator,json"`
@@ -23,11 +22,9 @@ type Batch struct {
 	NumAccounts        int                  `meddler:"num_accounts"`
 	LastIdx            int64                `meddler:"last_idx"`
 	ExitRoot           *big.Int             `meddler:"exit_root,bigint"`
-	// ForgeL1TxsNum is optional, Only when the batch forges L1 txs. Identifier that corresponds
+	ForgeL1TxsNum      *int64               `meddler:"forge_l1_txs_num"` // optional, Only when the batch forges L1 txs. Identifier that corresponds to the group of L1 txs forged in the current batch.
-	// to the group of L1 txs forged in the current batch.
+	SlotNum            int64                `meddler:"slot_num"`         // Slot in which the batch is forged
-	ForgeL1TxsNum *int64   `meddler:"forge_l1_txs_num"`
+	TotalFeesUSD       *float64             `meddler:"total_fees_usd"`
-	SlotNum       int64    `meddler:"slot_num"` // Slot in which the batch is forged
-	TotalFeesUSD  *float64 `meddler:"total_fees_usd"`
 }
 
 // NewEmptyBatch creates a new empty batch
@@ -66,9 +63,7 @@ func (bn BatchNum) BigInt() *big.Int {
 // BatchNumFromBytes returns BatchNum from a []byte
 func BatchNumFromBytes(b []byte) (BatchNum, error) {
 	if len(b) != batchNumBytesLen {
-		return 0,
+		return 0, tracerr.Wrap(fmt.Errorf("can not parse BatchNumFromBytes, bytes len %d, expected %d", len(b), batchNumBytesLen))
-			tracerr.Wrap(fmt.Errorf("can not parse BatchNumFromBytes, bytes len %d, expected %d",
-				len(b), batchNumBytesLen))
 	}
 	batchNum := binary.BigEndian.Uint64(b[:batchNumBytesLen])
 	return BatchNum(batchNum), nil

common/bid.go

@@ -34,7 +34,7 @@ type Slot struct {
 	// BatchesLen       int
 	BidValue  *big.Int
 	BootCoord bool
-	// Bidder, Forger and URL correspond to the winner of the slot (which is
+	// Bidder, Forer and URL correspond to the winner of the slot (which is
 	// not always the highest bidder).  These are the values of the
 	// coordinator that is able to forge exclusively before the deadline.
 	Bidder ethCommon.Address

common/coordinator.go

@@ -5,15 +5,10 @@ import (
 )
 
 // Coordinator represents a Hermez network coordinator who wins an auction for an specific slot
-// WARNING: this is strongly based on the previous implementation, once the new spec is done, this
+// WARNING: this is strongly based on the previous implementation, once the new spec is done, this may change a lot.
-// may change a lot.
 type Coordinator struct {
-	// Bidder is the address of the bidder
+	Bidder      ethCommon.Address `meddler:"bidder_addr"`   // address of the bidder
-	Bidder ethCommon.Address `meddler:"bidder_addr"`
+	Forger      ethCommon.Address `meddler:"forger_addr"`   // address of the forger
-	// Forger is the address of the forger
+	EthBlockNum int64             `meddler:"eth_block_num"` // block in which the coordinator was registered
-	Forger ethCommon.Address `meddler:"forger_addr"`
+	URL         string            `meddler:"url"`           // URL of the coordinators API
-	// EthBlockNum is the block in which the coordinator was registered
-	EthBlockNum int64 `meddler:"eth_block_num"`
-	// URL of the coordinators API
-	URL string `meddler:"url"`
 }

common/eth.go

@@ -0,0 +1,33 @@
+package common
+
+// SCVariables joins all the smart contract variables in a single struct
+type SCVariables struct {
+	Rollup   RollupVariables   `validate:"required"`
+	Auction  AuctionVariables  `validate:"required"`
+	WDelayer WDelayerVariables `validate:"required"`
+}
+
+// AsPtr returns the SCVariables as a SCVariablesPtr using pointers to the
+// original SCVariables
+func (v *SCVariables) AsPtr() *SCVariablesPtr {
+	return &SCVariablesPtr{
+		Rollup:   &v.Rollup,
+		Auction:  &v.Auction,
+		WDelayer: &v.WDelayer,
+	}
+}
+
+// SCVariablesPtr joins all the smart contract variables as pointers in a single
+// struct
+type SCVariablesPtr struct {
+	Rollup   *RollupVariables   `validate:"required"`
+	Auction  *AuctionVariables  `validate:"required"`
+	WDelayer *WDelayerVariables `validate:"required"`
+}
+
+// SCConsts joins all the smart contract constants in a single struct
+type SCConsts struct {
+	Rollup   RollupConstants
+	Auction  AuctionConstants
+	WDelayer WDelayerConstants
+}

common/ethauction.go

@@ -68,13 +68,11 @@ type AuctionVariables struct {
 	ClosedAuctionSlots uint16 `meddler:"closed_auction_slots" validate:"required"`
 	// Distance (#slots) to the farthest slot to which you can bid (30 days = 4320 slots )
 	OpenAuctionSlots uint16 `meddler:"open_auction_slots" validate:"required"`
-	// How the HEZ tokens deposited by the slot winner are distributed (Burn: 40% - Donation:
+	// How the HEZ tokens deposited by the slot winner are distributed (Burn: 40% - Donation: 40% - HGT: 20%)
-	// 40% - HGT: 20%)
 	AllocationRatio [3]uint16 `meddler:"allocation_ratio,json" validate:"required"`
 	// Minimum outbid (percentage) over the previous one to consider it valid
 	Outbidding uint16 `meddler:"outbidding" validate:"required"`
-	// Number of blocks at the end of a slot in which any coordinator can forge if the winner
+	// Number of blocks at the end of a slot in which any coordinator can forge if the winner has not forged one before
-	// has not forged one before
 	SlotDeadline uint8 `meddler:"slot_deadline" validate:"required"`
 }
 

common/ethrollup.go

@@ -20,22 +20,19 @@ const (
 	// RollupConstExitIDx IDX 1 is reserved for exits
 	RollupConstExitIDx = 1
 	// RollupConstLimitTokens Max number of tokens allowed to be registered inside the rollup
-	RollupConstLimitTokens = (1 << 32) //nolint:gomnd
+	RollupConstLimitTokens = (1 << 32)
-	// RollupConstL1CoordinatorTotalBytes [4 bytes] token + [32 bytes] babyjub + [65 bytes]
+	// RollupConstL1CoordinatorTotalBytes [4 bytes] token + [32 bytes] babyjub + [65 bytes] compressedSignature
-	// compressedSignature
 	RollupConstL1CoordinatorTotalBytes = 101
-	// RollupConstL1UserTotalBytes [20 bytes] fromEthAddr + [32 bytes] fromBjj-compressed + [6
+	// RollupConstL1UserTotalBytes [20 bytes] fromEthAddr + [32 bytes] fromBjj-compressed + [6 bytes] fromIdx +
-	// bytes] fromIdx + [5 bytes] depositAmountFloat40 + [5 bytes] amountFloat40 + [4 bytes]
+	// [5 bytes] depositAmountFloat40 + [5 bytes] amountFloat40 + [4 bytes] tokenId + [6 bytes] toIdx
-	// tokenId + [6 bytes] toIdx
 	RollupConstL1UserTotalBytes = 78
 	// RollupConstMaxL1UserTx Maximum L1-user transactions allowed to be queued in a batch
 	RollupConstMaxL1UserTx = 128
 	// RollupConstMaxL1Tx Maximum L1 transactions allowed to be queued in a batch
 	RollupConstMaxL1Tx = 256
-	// RollupConstInputSHAConstantBytes [6 bytes] lastIdx + [6 bytes] newLastIdx  + [32 bytes]
+	// RollupConstInputSHAConstantBytes [6 bytes] lastIdx + [6 bytes] newLastIdx  + [32 bytes] stateRoot  + [32 bytes] newStRoot  + [32 bytes] newExitRoot +
-	// stateRoot  + [32 bytes] newStRoot  + [32 bytes] newExitRoot + [_MAX_L1_TX *
+	// [_MAX_L1_TX * _L1_USER_TOTALBYTES bytes] l1TxsData + totalL2TxsDataLength + feeIdxCoordinatorLength + [2 bytes] chainID =
-	// _L1_USER_TOTALBYTES bytes] l1TxsData + totalL2TxsDataLength + feeIdxCoordinatorLength +
+	// 18542 bytes +  totalL2TxsDataLength + feeIdxCoordinatorLength
-	// [2 bytes] chainID = 18542 bytes +  totalL2TxsDataLength + feeIdxCoordinatorLength
 	RollupConstInputSHAConstantBytes = 18546
 	// RollupConstNumBuckets Number of buckets
 	RollupConstNumBuckets = 5
@@ -47,18 +44,14 @@ const (
 
 var (
 	// RollupConstLimitDepositAmount Max deposit amount allowed (depositAmount: L1 --> L2)
-	RollupConstLimitDepositAmount, _ = new(big.Int).SetString(
+	RollupConstLimitDepositAmount, _ = new(big.Int).SetString("340282366920938463463374607431768211456", 10)
-		"340282366920938463463374607431768211456", 10)
 	// RollupConstLimitL2TransferAmount Max amount allowed (amount L2 --> L2)
-	RollupConstLimitL2TransferAmount, _ = new(big.Int).SetString(
+	RollupConstLimitL2TransferAmount, _ = new(big.Int).SetString("6277101735386680763835789423207666416102355444464034512896", 10)
-		"6277101735386680763835789423207666416102355444464034512896", 10)
 
-	// RollupConstEthAddressInternalOnly This ethereum address is used internally for rollup
+	// RollupConstEthAddressInternalOnly This ethereum address is used internally for rollup accounts that don't have ethereum address, only Babyjubjub
-	// accounts that don't have ethereum address, only Babyjubjub.
+	// This non-ethereum accounts can be created by the coordinator and allow users to have a rollup
-	// This non-ethereum accounts can be created by the coordinator and allow users to have a
+	// account without needing an ethereum address
-	// rollup account without needing an ethereum address
+	RollupConstEthAddressInternalOnly = ethCommon.HexToAddress("0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF")
-	RollupConstEthAddressInternalOnly = ethCommon.HexToAddress(
-		"0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF")
 	// RollupConstRfield Modulus zkSNARK
 	RollupConstRfield, _ = new(big.Int).SetString(
 		"21888242871839275222246405745257275088548364400416034343698204186575808495617", 10)
@@ -70,32 +63,24 @@ var (
 
 	// RollupConstRecipientInterfaceHash ERC777 recipient interface hash
 	RollupConstRecipientInterfaceHash = crypto.Keccak256([]byte("ERC777TokensRecipient"))
-	// RollupConstPerformL1UserTxSignature the signature of the function that can be called thru
+	// RollupConstPerformL1UserTxSignature the signature of the function that can be called thru an ERC777 `send`
-	// an ERC777 `send`
+	RollupConstPerformL1UserTxSignature = crypto.Keccak256([]byte("addL1Transaction(uint256,uint48,uint16,uint16,uint32,uint48)"))
-	RollupConstPerformL1UserTxSignature = crypto.Keccak256([]byte(
+	// RollupConstAddTokenSignature the signature of the function that can be called thru an ERC777 `send`
-		"addL1Transaction(uint256,uint48,uint16,uint16,uint32,uint48)"))
-	// RollupConstAddTokenSignature the signature of the function that can be called thru an
-	// ERC777 `send`
 	RollupConstAddTokenSignature = crypto.Keccak256([]byte("addToken(address)"))
 	// RollupConstSendSignature ERC777 Signature
 	RollupConstSendSignature = crypto.Keccak256([]byte("send(address,uint256,bytes)"))
 	// RollupConstERC777Granularity ERC777 Signature
 	RollupConstERC777Granularity = crypto.Keccak256([]byte("granularity()"))
-	// RollupConstWithdrawalDelayerDeposit  This constant are used to deposit tokens from ERC77
+	// RollupConstWithdrawalDelayerDeposit  This constant are used to deposit tokens from ERC77 tokens into withdrawal delayer
-	// tokens into withdrawal delayer
 	RollupConstWithdrawalDelayerDeposit = crypto.Keccak256([]byte("deposit(address,address,uint192)"))
 
 	// ERC20 signature
 
-	// RollupConstTransferSignature This constant is used in the _safeTransfer internal method
+	// RollupConstTransferSignature This constant is used in the _safeTransfer internal method in order to safe GAS.
-	// in order to safe GAS.
 	RollupConstTransferSignature = crypto.Keccak256([]byte("transfer(address,uint256)"))
-	// RollupConstTransferFromSignature This constant is used in the _safeTransfer internal
+	// RollupConstTransferFromSignature This constant is used in the _safeTransfer internal method in order to safe GAS.
-	// method in order to safe GAS.
+	RollupConstTransferFromSignature = crypto.Keccak256([]byte("transferFrom(address,address,uint256)"))
-	RollupConstTransferFromSignature = crypto.Keccak256([]byte(
+	// RollupConstApproveSignature This constant is used in the _safeTransfer internal method in order to safe GAS.
-		"transferFrom(address,address,uint256)"))
-	// RollupConstApproveSignature This constant is used in the _safeTransfer internal method in
-	// order to safe GAS.
 	RollupConstApproveSignature = crypto.Keccak256([]byte("approve(address,uint256)"))
 	// RollupConstERC20Signature ERC20 decimals signature
 	RollupConstERC20Signature = crypto.Keccak256([]byte("decimals()"))
@@ -156,7 +141,6 @@ type TokenExchange struct {
 }
 
 // RollupVariables are the variables of the Rollup Smart Contract
-//nolint:lll
 type RollupVariables struct {
 	EthBlockNum           int64                               `meddler:"eth_block_num"`
 	FeeAddToken           *big.Int                            `meddler:"fee_add_token,bigint" validate:"required"`

common/ethwdelayer.go

@@ -27,7 +27,6 @@ type WDelayerEscapeHatchWithdrawal struct {
 }
 
 // WDelayerVariables are the variables of the Withdrawal Delayer Smart Contract
-//nolint:lll
 type WDelayerVariables struct {
 	EthBlockNum int64 `json:"ethereumBlockNum" meddler:"eth_block_num"`
 	// HermezRollupAddress        ethCommon.Address `json:"hermezRollupAddress" meddler:"rollup_address"`

common/float40.go

@@ -1,4 +1,4 @@
-// Package common float40.go provides methods to work with Hermez custom half
+// Package common Float40 provides methods to work with Hermez custom half
 // float precision, 40 bits, codification internally called Float40 has been
 // adopted to encode large integers. This is done in order to save bits when L2
 // transactions are published.
@@ -32,8 +32,6 @@ var (
 	// ErrFloat40NotEnoughPrecission is used when the given *big.Int can
 	// not be represented as Float40 due not enough precission
 	ErrFloat40NotEnoughPrecission = errors.New("Float40 error, not enough precission")
-
-	thres = big.NewInt(0x08_00_00_00_00)
 )
 
 // Float40 represents a float in a 64 bit format
@@ -70,7 +68,7 @@ func (f40 Float40) BigInt() (*big.Int, error) {
 	var f40Uint64 uint64 = uint64(f40) & 0x00_00_00_FF_FF_FF_FF_FF
 	f40Bytes, err := f40.Bytes()
 	if err != nil {
-		return nil, tracerr.Wrap(err)
+		return nil, err
 	}
 
 	e := f40Bytes[0] & 0xF8 >> 3      // take first 5 bits
@@ -88,41 +86,18 @@ func NewFloat40(f *big.Int) (Float40, error) {
 	e := big.NewInt(0)
 	zero := big.NewInt(0)
 	ten := big.NewInt(10)
+	thres := big.NewInt(0x08_00_00_00_00)
 	for new(big.Int).Mod(m, ten).Cmp(zero) == 0 && m.Cmp(thres) >= 0 {
 		m = new(big.Int).Div(m, ten)
 		e = new(big.Int).Add(e, big.NewInt(1))
 	}
 	if e.Int64() > 31 {
-		return 0, tracerr.Wrap(ErrFloat40E31)
+		return 0, ErrFloat40E31
 	}
 	if m.Cmp(thres) >= 0 {
-		return 0, tracerr.Wrap(ErrFloat40NotEnoughPrecission)
+		return 0, ErrFloat40NotEnoughPrecission
 	}
 	r := new(big.Int).Add(m,
 		new(big.Int).Mul(e, thres))
 	return Float40(r.Uint64()), nil
 }
-
-// NewFloat40Floor encodes a *big.Int integer as a Float40, rounding down in
-// case of loss during the encoding. It returns an error in case that the number
-// is too big (e>31). Warning: this method should not be used inside the
-// hermez-node, it's a helper for external usage to generate valid Float40
-// values.
-func NewFloat40Floor(f *big.Int) (Float40, error) {
-	m := f
-	e := big.NewInt(0)
-	// zero := big.NewInt(0)
-	ten := big.NewInt(10)
-	for m.Cmp(thres) >= 0 {
-		m = new(big.Int).Div(m, ten)
-		e = new(big.Int).Add(e, big.NewInt(1))
-	}
-	if e.Int64() > 31 {
-		return 0, tracerr.Wrap(ErrFloat40E31)
-	}
-
-	r := new(big.Int).Add(m,
-		new(big.Int).Mul(e, thres))
-
-	return Float40(r.Uint64()), nil
-}

common/float40_test.go

@@ -1,11 +1,9 @@
 package common
 
 import (
-	"fmt"
 	"math/big"
 	"testing"
 
-	"github.com/hermeznetwork/tracerr"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -57,56 +55,7 @@ func TestExpectError(t *testing.T) {
 		bi, ok := new(big.Int).SetString(test, 10)
 		require.True(t, ok)
 		_, err := NewFloat40(bi)
-		assert.Equal(t, testVector[test], tracerr.Unwrap(err))
+		assert.Equal(t, testVector[test], err)
-	}
-}
-
-func TestNewFloat40Floor(t *testing.T) {
-	testVector := map[string][]string{
-		// []int contains [Float40 value, Flot40 Floor value], when
-		// Float40 value is expected to be 0, is because is expected to
-		// be an error
-		"9922334455000000000000000000000000000000": {
-			"1040714485495", "1040714485495", "9922334455000000000000000000000000000000"},
-		"9922334455000000000000000000000000000001": { // Floor [2] will be same as prev line
-			"0", "1040714485495", "9922334455000000000000000000000000000000"},
-		"9922334454999999999999999999999999999999": {
-			"0", "1040714485494", "9922334454000000000000000000000000000000"},
-		"42949672950000000000000000000000000000000": {
-			"1069446856703", "1069446856703", "42949672950000000000000000000000000000000"},
-		"99223344556573838487575": {
-			"0", "456598933239", "99223344550000000000000"},
-		"992233445500000000000000000000000000000000": {
-			"0", "0", "0"}, // e>31, returns 0, err
-		"343597383670000000000000000000000000000000": {
-			"1099511627775", "1099511627775", "343597383670000000000000000000000000000000"},
-		"343597383680000000000000000000000000000000": {
-			"0", "0", "0"}, // e>31, returns 0, err
-		"1157073197879933027": {
-			"0", "286448638922", "1157073197800000000"},
-	}
-	for test := range testVector {
-		bi, ok := new(big.Int).SetString(test, 10)
-		require.True(t, ok)
-		f40, err := NewFloat40(bi)
-		if f40 == 0 {
-			assert.Error(t, err)
-		} else {
-			assert.NoError(t, err)
-		}
-		assert.Equal(t, testVector[test][0], fmt.Sprint(uint64(f40)))
-
-		f40, err = NewFloat40Floor(bi)
-		if f40 == 0 {
-			assert.Equal(t, ErrFloat40E31, tracerr.Unwrap(err))
-		} else {
-			assert.NoError(t, err)
-		}
-		assert.Equal(t, testVector[test][1], fmt.Sprint(uint64(f40)))
-
-		bi2, err := f40.BigInt()
-		require.NoError(t, err)
-		assert.Equal(t, fmt.Sprint(testVector[test][2]), bi2.String())
 	}
 }
 

common/l1tx.go

@@ -21,33 +21,25 @@ type L1Tx struct {
 	// where type:
 	// 	- L1UserTx: 0
 	// 	- L1CoordinatorTx: 1
-	TxID TxID `meddler:"id"`
+	TxID             TxID                  `meddler:"id"`
-	// ToForgeL1TxsNum indicates in which the tx was forged / will be forged
+	ToForgeL1TxsNum  *int64                `meddler:"to_forge_l1_txs_num"` // toForgeL1TxsNum in which the tx was forged / will be forged
-	ToForgeL1TxsNum *int64 `meddler:"to_forge_l1_txs_num"`
+	Position         int                   `meddler:"position"`
-	Position        int    `meddler:"position"`
+	UserOrigin       bool                  `meddler:"user_origin"`         // true if the tx was originated by a user, false if it was aoriginated by a coordinator. Note that this differ from the spec for implementation simplification purpposes
-	// UserOrigin is set to true if the tx was originated by a user, false if it was
+	FromIdx          Idx                   `meddler:"from_idx,zeroisnull"` // FromIdx is used by L1Tx/Deposit to indicate the Idx receiver of the L1Tx.DepositAmount (deposit)
-	// aoriginated by a coordinator. Note that this differ from the spec for implementation
-	// simplification purpposes
-	UserOrigin bool `meddler:"user_origin"`
-	// FromIdx is used by L1Tx/Deposit to indicate the Idx receiver of the L1Tx.DepositAmount
-	// (deposit)
-	FromIdx          Idx                   `meddler:"from_idx,zeroisnull"`
 	EffectiveFromIdx Idx                   `meddler:"effective_from_idx,zeroisnull"`
 	FromEthAddr      ethCommon.Address     `meddler:"from_eth_addr,zeroisnull"`
 	FromBJJ          babyjub.PublicKeyComp `meddler:"from_bjj,zeroisnull"`
-	// ToIdx is ignored in L1Tx/Deposit, but used in the L1Tx/DepositAndTransfer
+	ToIdx            Idx                   `meddler:"to_idx"` // ToIdx is ignored in L1Tx/Deposit, but used in the L1Tx/DepositAndTransfer
-	ToIdx   Idx      `meddler:"to_idx"`
+	TokenID          TokenID               `meddler:"token_id"`
-	TokenID TokenID  `meddler:"token_id"`
+	Amount           *big.Int              `meddler:"amount,bigint"`
-	Amount  *big.Int `meddler:"amount,bigint"`
 	// EffectiveAmount only applies to L1UserTx.
 	EffectiveAmount *big.Int `meddler:"effective_amount,bigintnull"`
 	DepositAmount   *big.Int `meddler:"deposit_amount,bigint"`
 	// EffectiveDepositAmount only applies to L1UserTx.
-	EffectiveDepositAmount *big.Int `meddler:"effective_deposit_amount,bigintnull"`
+	EffectiveDepositAmount *big.Int  `meddler:"effective_deposit_amount,bigintnull"`
-	// Ethereum Block Number in which this L1Tx was added to the queue
+	EthBlockNum            int64     `meddler:"eth_block_num"` // Ethereum Block Number in which this L1Tx was added to the queue
-	EthBlockNum int64     `meddler:"eth_block_num"`
+	Type                   TxType    `meddler:"type"`
-	Type        TxType    `meddler:"type"`
+	BatchNum               *BatchNum `meddler:"batch_num"`
-	BatchNum    *BatchNum `meddler:"batch_num"`
 }
 
 // NewL1Tx returns the given L1Tx with the TxId & Type parameters calculated
@@ -259,7 +251,7 @@ func L1TxFromDataAvailability(b []byte, nLevels uint32) (*L1Tx, error) {
 	}
 	l1tx.ToIdx = toIdx
 	l1tx.EffectiveAmount, err = Float40FromBytes(amountBytes).BigInt()
-	return &l1tx, tracerr.Wrap(err)
+	return &l1tx, err
 }
 
 // BytesGeneric returns the generic representation of a L1Tx. This method is
@@ -339,9 +331,7 @@ func (tx *L1Tx) BytesCoordinatorTx(compressedSignatureBytes []byte) ([]byte, err
 // L1UserTxFromBytes decodes a L1Tx from []byte
 func L1UserTxFromBytes(b []byte) (*L1Tx, error) {
 	if len(b) != RollupConstL1UserTotalBytes {
-		return nil,
+		return nil, tracerr.Wrap(fmt.Errorf("Can not parse L1Tx bytes, expected length %d, current: %d", 68, len(b)))
-			tracerr.Wrap(fmt.Errorf("Can not parse L1Tx bytes, expected length %d, current: %d",
-				68, len(b)))
 	}
 
 	tx := &L1Tx{
@@ -379,12 +369,9 @@ func L1UserTxFromBytes(b []byte) (*L1Tx, error) {
 }
 
 // L1CoordinatorTxFromBytes decodes a L1Tx from []byte
-func L1CoordinatorTxFromBytes(b []byte, chainID *big.Int, hermezAddress ethCommon.Address) (*L1Tx,
+func L1CoordinatorTxFromBytes(b []byte, chainID *big.Int, hermezAddress ethCommon.Address) (*L1Tx, error) {
-	error) {
 	if len(b) != RollupConstL1CoordinatorTotalBytes {
-		return nil, tracerr.Wrap(
+		return nil, tracerr.Wrap(fmt.Errorf("Can not parse L1CoordinatorTx bytes, expected length %d, current: %d", 101, len(b)))
-			fmt.Errorf("Can not parse L1CoordinatorTx bytes, expected length %d, current: %d",
-				101, len(b)))
 	}
 
 	tx := &L1Tx{

common/l1tx_test.go

@@ -29,8 +29,7 @@ func TestNewL1UserTx(t *testing.T) {
 	}
 	l1Tx, err := NewL1Tx(l1Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x00a6cbae3b8661fb75b0919ca6605a02cfb04d9c6dd16870fa0fcdf01befa32768",
+	assert.Equal(t, "0x00a6cbae3b8661fb75b0919ca6605a02cfb04d9c6dd16870fa0fcdf01befa32768", l1Tx.TxID.String())
-		l1Tx.TxID.String())
 }
 
 func TestNewL1CoordinatorTx(t *testing.T) {
@@ -47,8 +46,7 @@ func TestNewL1CoordinatorTx(t *testing.T) {
 	}
 	l1Tx, err := NewL1Tx(l1Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x01274482d73df4dab34a1b6740adfca347a462513aa14e82f27b12f818d1b68c84",
+	assert.Equal(t, "0x01274482d73df4dab34a1b6740adfca347a462513aa14e82f27b12f818d1b68c84", l1Tx.TxID.String())
-		l1Tx.TxID.String())
 }
 
 func TestL1TxCompressedData(t *testing.T) {
@@ -201,8 +199,7 @@ func TestL1userTxByteParsers(t *testing.T) {
 func TestL1TxByteParsersCompatibility(t *testing.T) {
 	// Data from compatibility test
 	var pkComp babyjub.PublicKeyComp
-	pkCompB, err :=
+	pkCompB, err := hex.DecodeString("0dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a")
-		hex.DecodeString("0dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a")
 	require.NoError(t, err)
 	pkCompL := SwapEndianness(pkCompB)
 	err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
@@ -223,8 +220,7 @@ func TestL1TxByteParsersCompatibility(t *testing.T) {
 
 	encodedData, err := l1Tx.BytesUser()
 	require.NoError(t, err)
-	expected := "85dab5b9e2e361d0c208d77be90efcc0439b0a530dd02deb2c81068e7a0f7e327df80b4ab79e" +
+	expected := "85dab5b9e2e361d0c208d77be90efcc0439b0a530dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a000001c638db52540be400459682f0000020039c0000053cb88d"
-		"e1f41a7def613e73a20c32eece5a000001c638db52540be400459682f0000020039c0000053cb88d"
 	assert.Equal(t, expected, hex.EncodeToString(encodedData))
 }
 
@@ -232,8 +228,7 @@ func TestL1CoordinatorTxByteParsers(t *testing.T) {
 	hermezAddress := ethCommon.HexToAddress("0xD6C850aeBFDC46D7F4c207e445cC0d6B0919BDBe")
 	chainID := big.NewInt(1337)
 
-	privateKey, err :=
+	privateKey, err := crypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
-		crypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
 	require.NoError(t, err)
 
 	publicKey := privateKey.Public()
@@ -305,8 +300,7 @@ func TestL1CoordinatorTxByteParsersCompatibility(t *testing.T) {
 	signature = append(signature, v[:]...)
 
 	var pkComp babyjub.PublicKeyComp
-	pkCompB, err :=
+	pkCompB, err := hex.DecodeString("a2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c")
-		hex.DecodeString("a2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c")
 	require.NoError(t, err)
 	pkCompL := SwapEndianness(pkCompB)
 	err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
@@ -321,9 +315,7 @@ func TestL1CoordinatorTxByteParsersCompatibility(t *testing.T) {
 	encodeData, err := l1Tx.BytesCoordinatorTx(signature)
 	require.NoError(t, err)
 
-	expected, err := utils.HexDecode("1b186d7122ff7f654cfed3156719774898d573900c86599a885a706" +
+	expected, err := utils.HexDecode("1b186d7122ff7f654cfed3156719774898d573900c86599a885a706dbdffe5ea8cda71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3ba2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c000000e7")
-		"dbdffe5ea8cda71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3ba2c28" +
-		"07ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c000000e7")
 	require.NoError(t, err)
 
 	assert.Equal(t, expected, encodeData)

common/l2tx.go

@@ -10,7 +10,7 @@ import (
 
 // L2Tx is a struct that represents an already forged L2 tx
 type L2Tx struct {
-	// Stored in DB: mandatory fields
+	// Stored in DB: mandatory fileds
 	TxID     TxID     `meddler:"id"`
 	BatchNum BatchNum `meddler:"batch_num"` // batchNum in which this tx was forged.
 	Position int      `meddler:"position"`
@@ -21,10 +21,9 @@ type L2Tx struct {
 	Amount  *big.Int    `meddler:"amount,bigint"`
 	Fee     FeeSelector `meddler:"fee"`
 	// Nonce is filled by the TxProcessor
-	Nonce Nonce  `meddler:"nonce"`
+	Nonce       Nonce  `meddler:"nonce"`
-	Type  TxType `meddler:"type"`
+	Type        TxType `meddler:"type"`
-	// EthBlockNum in which this L2Tx was added to the queue
+	EthBlockNum int64  `meddler:"eth_block_num"` // EthereumBlockNumber in which this L2Tx was added to the queue
-	EthBlockNum int64 `meddler:"eth_block_num"`
 }
 
 // NewL2Tx returns the given L2Tx with the TxId & Type parameters calculated

common/l2tx_test.go

@@ -19,8 +19,7 @@ func TestNewL2Tx(t *testing.T) {
 	}
 	l2Tx, err := NewL2Tx(l2Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x022669acda59b827d20ef5354a3eebd1dffb3972b0a6bf89d18bfd2efa0ab9f41e",
+	assert.Equal(t, "0x022669acda59b827d20ef5354a3eebd1dffb3972b0a6bf89d18bfd2efa0ab9f41e", l2Tx.TxID.String())
-		l2Tx.TxID.String())
 
 	l2Tx = &L2Tx{
 		FromIdx: 87654,
@@ -31,8 +30,7 @@ func TestNewL2Tx(t *testing.T) {
 	}
 	l2Tx, err = NewL2Tx(l2Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x029e7499a830f8f5eb17c07da48cf91415710f1bcbe0169d363ff91e81faf92fc2",
+	assert.Equal(t, "0x029e7499a830f8f5eb17c07da48cf91415710f1bcbe0169d363ff91e81faf92fc2", l2Tx.TxID.String())
-		l2Tx.TxID.String())
 
 	l2Tx = &L2Tx{
 		FromIdx: 87654,
@@ -44,8 +42,7 @@ func TestNewL2Tx(t *testing.T) {
 	}
 	l2Tx, err = NewL2Tx(l2Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x0255c70ed20e1b8935232e1b9c5884dbcc88a6e1a3454d24f2d77252eb2bb0b64e",
+	assert.Equal(t, "0x0255c70ed20e1b8935232e1b9c5884dbcc88a6e1a3454d24f2d77252eb2bb0b64e", l2Tx.TxID.String())
-		l2Tx.TxID.String())
 
 	l2Tx = &L2Tx{
 		FromIdx: 87654,
@@ -57,8 +54,7 @@ func TestNewL2Tx(t *testing.T) {
 	}
 	l2Tx, err = NewL2Tx(l2Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x0206b372f967061d1148bbcff679de38120e075141a80a07326d0f514c2efc6ca9",
+	assert.Equal(t, "0x0206b372f967061d1148bbcff679de38120e075141a80a07326d0f514c2efc6ca9", l2Tx.TxID.String())
-		l2Tx.TxID.String())
 
 	l2Tx = &L2Tx{
 		FromIdx: 1,
@@ -70,8 +66,7 @@ func TestNewL2Tx(t *testing.T) {
 	}
 	l2Tx, err = NewL2Tx(l2Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x0236f7ea5bccf78ba60baf56c058d235a844f9b09259fd0efa4f5f72a7d4a26618",
+	assert.Equal(t, "0x0236f7ea5bccf78ba60baf56c058d235a844f9b09259fd0efa4f5f72a7d4a26618", l2Tx.TxID.String())
-		l2Tx.TxID.String())
 
 	l2Tx = &L2Tx{
 		FromIdx: 999,
@@ -83,8 +78,7 @@ func TestNewL2Tx(t *testing.T) {
 	}
 	l2Tx, err = NewL2Tx(l2Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x02ac122f5b709ce190129fecbbe35bfd30c70e6433dbd85a8eb743d110906a1dc1",
+	assert.Equal(t, "0x02ac122f5b709ce190129fecbbe35bfd30c70e6433dbd85a8eb743d110906a1dc1", l2Tx.TxID.String())
-		l2Tx.TxID.String())
 
 	l2Tx = &L2Tx{
 		FromIdx: 4444,
@@ -96,8 +90,7 @@ func TestNewL2Tx(t *testing.T) {
 	}
 	l2Tx, err = NewL2Tx(l2Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x02c674951a81881b7bc50db3b9e5efd97ac88550c7426ac548720e5057cfba515a",
+	assert.Equal(t, "0x02c674951a81881b7bc50db3b9e5efd97ac88550c7426ac548720e5057cfba515a", l2Tx.TxID.String())
-		l2Tx.TxID.String())
 }
 
 func TestL2TxByteParsers(t *testing.T) {

common/pooll2tx.go

@@ -16,8 +16,7 @@ import (
 // EmptyBJJComp contains the 32 byte array of a empty BabyJubJub PublicKey
 // Compressed. It is a valid point in the BabyJubJub curve, so does not give
 // errors when being decompressed.
-var EmptyBJJComp = babyjub.PublicKeyComp([32]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+var EmptyBJJComp = babyjub.PublicKeyComp([32]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
 
 // PoolL2Tx is a struct that represents a L2Tx sent by an account to the
 // coordinator that is waiting to be forged
@@ -101,8 +100,6 @@ func (tx *PoolL2Tx) SetType() error {
 			tx.Type = TxTypeTransferToBJJ
 		} else if tx.ToEthAddr != FFAddr && tx.ToEthAddr != EmptyAddr {
 			tx.Type = TxTypeTransferToEthAddr
-		} else {
-			return tracerr.Wrap(errors.New("malformed transaction"))
 		}
 	} else {
 		return tracerr.Wrap(errors.New("malformed transaction"))
@@ -306,8 +303,10 @@ func (tx *PoolL2Tx) HashToSign(chainID uint16) (*big.Int, error) {
 		return nil, tracerr.Wrap(err)
 	}
 	copy(e1B[0:5], amountFloat40Bytes)
-	copy(e1B[5:25], tx.ToEthAddr[:])
+	toEthAddr := EthAddrToBigInt(tx.ToEthAddr)
+	copy(e1B[5:25], toEthAddr.Bytes())
 	e1 := new(big.Int).SetBytes(e1B[:])
+
 	rqToEthAddr := EthAddrToBigInt(tx.RqToEthAddr)
 
 	_, toBJJY := babyjub.UnpackSignY(tx.ToBJJ)
@@ -319,8 +318,7 @@ func (tx *PoolL2Tx) HashToSign(chainID uint16) (*big.Int, error) {
 
 	_, rqToBJJY := babyjub.UnpackSignY(tx.RqToBJJ)
 
-	return poseidon.Hash([]*big.Int{toCompressedData, e1, toBJJY, rqTxCompressedDataV2,
+	return poseidon.Hash([]*big.Int{toCompressedData, e1, toBJJY, rqTxCompressedDataV2, rqToEthAddr, rqToBJJY})
-		rqToEthAddr, rqToBJJY})
 }
 
 // VerifySignature returns true if the signature verification is correct for the given PublicKeyComp

common/pooll2tx_test.go

@@ -21,20 +21,17 @@ func TestNewPoolL2Tx(t *testing.T) {
 	}
 	poolL2Tx, err := NewPoolL2Tx(poolL2Tx)
 	assert.NoError(t, err)
-	assert.Equal(t, "0x022669acda59b827d20ef5354a3eebd1dffb3972b0a6bf89d18bfd2efa0ab9f41e",
+	assert.Equal(t, "0x022669acda59b827d20ef5354a3eebd1dffb3972b0a6bf89d18bfd2efa0ab9f41e", poolL2Tx.TxID.String())
-		poolL2Tx.TxID.String())
 }
 
 func TestTxCompressedDataAndTxCompressedDataV2JSVectors(t *testing.T) {
 	// test vectors values generated from javascript implementation
 	var skPositive babyjub.PrivateKey // 'Positive' refers to the sign
-	_, err := hex.Decode(skPositive[:],
+	_, err := hex.Decode(skPositive[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
-		[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
 	assert.NoError(t, err)
 
 	var skNegative babyjub.PrivateKey // 'Negative' refers to the sign
-	_, err = hex.Decode(skNegative[:],
+	_, err = hex.Decode(skNegative[:], []byte("0001020304050607080900010203040506070809000102030405060708090002"))
-		[]byte("0001020304050607080900010203040506070809000102030405060708090002"))
 	assert.NoError(t, err)
 
 	amount, ok := new(big.Int).SetString("343597383670000000000000000000000000000000", 10)
@@ -126,8 +123,7 @@ func TestTxCompressedDataAndTxCompressedDataV2JSVectors(t *testing.T) {
 
 func TestRqTxCompressedDataV2(t *testing.T) {
 	var sk babyjub.PrivateKey
-	_, err := hex.Decode(sk[:],
+	_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
-		[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
 	assert.NoError(t, err)
 	tx := PoolL2Tx{
 		RqFromIdx: 7,
@@ -146,8 +142,7 @@ func TestRqTxCompressedDataV2(t *testing.T) {
 	expected, ok := new(big.Int).SetString(expectedStr, 10)
 	assert.True(t, ok)
 	assert.Equal(t, expected.Bytes(), txCompressedData.Bytes())
-	assert.Equal(t, "010c000000000b0000000a0000000009000000000008000000000007",
+	assert.Equal(t, "010c000000000b0000000a0000000009000000000008000000000007", hex.EncodeToString(txCompressedData.Bytes()))
-		hex.EncodeToString(txCompressedData.Bytes()))
 }
 
 func TestHashToSign(t *testing.T) {
@@ -162,15 +157,13 @@ func TestHashToSign(t *testing.T) {
 	}
 	toSign, err := tx.HashToSign(chainID)
 	assert.NoError(t, err)
-	assert.Equal(t, "0b8abaf6b7933464e4450df2514da8b72606c02bf7f89bf6e54816fbda9d9d57",
+	assert.Equal(t, "2d49ce1d4136e06f64e3eb1f79a346e6ee3e93ceeac909a57806a8d87005c263", hex.EncodeToString(toSign.Bytes()))
-		hex.EncodeToString(toSign.Bytes()))
 }
 
 func TestVerifyTxSignature(t *testing.T) {
 	chainID := uint16(0)
 	var sk babyjub.PrivateKey
-	_, err := hex.Decode(sk[:],
+	_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
-		[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
 	assert.NoError(t, err)
 	tx := PoolL2Tx{
 		FromIdx:     2,
@@ -184,49 +177,18 @@ func TestVerifyTxSignature(t *testing.T) {
 	}
 	toSign, err := tx.HashToSign(chainID)
 	assert.NoError(t, err)
-	assert.Equal(t,
+	assert.Equal(t, "1571327027383224465388301747239444557034990637650927918405777653988509342917", toSign.String())
-		"3144939470626721092564692894890580265754250231349521601298746071096761507003",
-		toSign.String())
 
 	sig := sk.SignPoseidon(toSign)
 	tx.Signature = sig.Compress()
 	assert.True(t, tx.VerifySignature(chainID, sk.Public().Compress()))
 }
 
-func TestVerifyTxSignatureEthAddrWith0(t *testing.T) {
-	chainID := uint16(5)
-	var sk babyjub.PrivateKey
-	_, err := hex.Decode(sk[:],
-		[]byte("02f0b4f87065af3797aaaf934e8b5c31563c17f2272fa71bd0146535bfbb4184"))
-	assert.NoError(t, err)
-	tx := PoolL2Tx{
-		FromIdx:   10659,
-		ToIdx:     0,
-		ToEthAddr: ethCommon.HexToAddress("0x0004308BD15Ead4F1173624dC289DBdcC806a309"),
-		Amount:    big.NewInt(5000),
-		TokenID:   0,
-		Nonce:     946,
-		Fee:       231,
-	}
-	toSign, err := tx.HashToSign(chainID)
-	assert.NoError(t, err)
-
-	sig := sk.SignPoseidon(toSign)
-	assert.Equal(t,
-		"f208b8298d5f37148ac3c0c03703272ea47b9f836851bcf8dd5f7e4e3b336ca1d2f6e92ad85dc25f174daf7a0abfd5f71dead3f059b783f4c4b2f56a18a47000",
-		sig.Compress().String(),
-	)
-	tx.Signature = sig.Compress()
-	assert.True(t, tx.VerifySignature(chainID, sk.Public().Compress()))
-}
-
 func TestDecompressEmptyBJJComp(t *testing.T) {
 	pkComp := EmptyBJJComp
 	pk, err := pkComp.Decompress()
 	require.NoError(t, err)
-	assert.Equal(t,
+	assert.Equal(t, "2957874849018779266517920829765869116077630550401372566248359756137677864698", pk.X.String())
-		"2957874849018779266517920829765869116077630550401372566248359756137677864698",
-		pk.X.String())
 	assert.Equal(t, "0", pk.Y.String())
 }
 

common/token.go

@@ -15,9 +15,8 @@ const tokenIDBytesLen = 4
 
 // Token is a struct that represents an Ethereum token that is supported in Hermez network
 type Token struct {
-	TokenID TokenID `json:"id" meddler:"token_id"`
+	TokenID     TokenID           `json:"id" meddler:"token_id"`
-	// EthBlockNum indicates the Ethereum block number in which this token was registered
+	EthBlockNum int64             `json:"ethereumBlockNum" meddler:"eth_block_num"` // Ethereum block number in which this token was registered
-	EthBlockNum int64             `json:"ethereumBlockNum" meddler:"eth_block_num"`
 	EthAddr     ethCommon.Address `json:"ethereumAddress" meddler:"eth_addr"`
 	Name        string            `json:"name" meddler:"name"`
 	Symbol      string            `json:"symbol" meddler:"symbol"`
@@ -49,8 +48,7 @@ func (t TokenID) BigInt() *big.Int {
 // TokenIDFromBytes returns TokenID from a byte array
 func TokenIDFromBytes(b []byte) (TokenID, error) {
 	if len(b) != tokenIDBytesLen {
-		return 0, tracerr.Wrap(fmt.Errorf("can not parse TokenID, bytes len %d, expected 4",
+		return 0, tracerr.Wrap(fmt.Errorf("can not parse TokenID, bytes len %d, expected 4", len(b)))
-			len(b)))
 	}
 	tid := binary.BigEndian.Uint32(b[:4])
 	return TokenID(tid), nil

common/tx.go

@@ -15,12 +15,12 @@ import (
 )
 
 const (
-	// TxIDPrefixL1UserTx is the prefix that determines that the TxID is for
+	// TXIDPrefixL1UserTx is the prefix that determines that the TxID is
-	// a L1UserTx
+	// for a L1UserTx
 	//nolinter:gomnd
 	TxIDPrefixL1UserTx = byte(0)
 
-	// TxIDPrefixL1CoordTx is the prefix that determines that the TxID is
+	// TXIDPrefixL1CoordTx is the prefix that determines that the TxID is
 	// for a L1CoordinatorTx
 	//nolinter:gomnd
 	TxIDPrefixL1CoordTx = byte(1)
@@ -51,8 +51,7 @@ func (txid *TxID) Scan(src interface{}) error {
 		return tracerr.Wrap(fmt.Errorf("can't scan %T into TxID", src))
 	}
 	if len(srcB) != TxIDLen {
-		return tracerr.Wrap(fmt.Errorf("can't scan []byte of len %d into TxID, need %d",
+		return tracerr.Wrap(fmt.Errorf("can't scan []byte of len %d into TxID, need %d", len(srcB), TxIDLen))
-			len(srcB), TxIDLen))
 	}
 	copy(txid[:], srcB)
 	return nil
@@ -88,7 +87,7 @@ func (txid TxID) MarshalText() ([]byte, error) {
 	return []byte(txid.String()), nil
 }
 
-// UnmarshalText unmarshalls a TxID
+// UnmarshalText unmarshals a TxID
 func (txid *TxID) UnmarshalText(data []byte) error {
 	idStr := string(data)
 	id, err := NewTxIDFromString(idStr)
@@ -103,15 +102,13 @@ func (txid *TxID) UnmarshalText(data []byte) error {
 type TxType string
 
 const (
-	// TxTypeExit represents L2->L1 token transfer.  A leaf for this account appears in the exit
+	// TxTypeExit represents L2->L1 token transfer.  A leaf for this account appears in the exit tree of the block
-	// tree of the block
 	TxTypeExit TxType = "Exit"
 	// TxTypeTransfer represents L2->L2 token transfer
 	TxTypeTransfer TxType = "Transfer"
 	// TxTypeDeposit represents L1->L2 transfer
 	TxTypeDeposit TxType = "Deposit"
-	// TxTypeCreateAccountDeposit represents creation of a new leaf in the state tree
+	// TxTypeCreateAccountDeposit represents creation of a new leaf in the state tree (newAcconut) + L1->L2 transfer
-	// (newAcconut) + L1->L2 transfer
 	TxTypeCreateAccountDeposit TxType = "CreateAccountDeposit"
 	// TxTypeCreateAccountDepositTransfer represents L1->L2 transfer + L2->L2 transfer
 	TxTypeCreateAccountDepositTransfer TxType = "CreateAccountDepositTransfer"
@@ -127,31 +124,24 @@ const (
 	TxTypeTransferToBJJ TxType = "TransferToBJJ"
 )
 
-// Tx is a struct used by the TxSelector & BatchBuilder as a generic type generated from L1Tx &
+// Tx is a struct used by the TxSelector & BatchBuilder as a generic type generated from L1Tx & PoolL2Tx
-// PoolL2Tx
 type Tx struct {
 	// Generic
-	IsL1        bool     `meddler:"is_l1"`
+	IsL1        bool      `meddler:"is_l1"`
-	TxID        TxID     `meddler:"id"`
+	TxID        TxID      `meddler:"id"`
-	Type        TxType   `meddler:"type"`
+	Type        TxType    `meddler:"type"`
-	Position    int      `meddler:"position"`
+	Position    int       `meddler:"position"`
-	FromIdx     Idx      `meddler:"from_idx"`
+	FromIdx     Idx       `meddler:"from_idx"`
-	ToIdx       Idx      `meddler:"to_idx"`
+	ToIdx       Idx       `meddler:"to_idx"`
-	Amount      *big.Int `meddler:"amount,bigint"`
+	Amount      *big.Int  `meddler:"amount,bigint"`
-	AmountFloat float64  `meddler:"amount_f"`
+	AmountFloat float64   `meddler:"amount_f"`
-	TokenID     TokenID  `meddler:"token_id"`
+	TokenID     TokenID   `meddler:"token_id"`
-	USD         *float64 `meddler:"amount_usd"`
+	USD         *float64  `meddler:"amount_usd"`
-	// BatchNum in which this tx was forged. If the tx is L2, this must be != 0
+	BatchNum    *BatchNum `meddler:"batch_num"`     // batchNum in which this tx was forged. If the tx is L2, this must be != 0
-	BatchNum *BatchNum `meddler:"batch_num"`
+	EthBlockNum int64     `meddler:"eth_block_num"` // Ethereum Block Number in which this L1Tx was added to the queue
-	// Ethereum Block Number in which this L1Tx was added to the queue
-	EthBlockNum int64 `meddler:"eth_block_num"`
 	// L1
-	// ToForgeL1TxsNum in which the tx was forged / will be forged
+	ToForgeL1TxsNum    *int64                `meddler:"to_forge_l1_txs_num"` // toForgeL1TxsNum in which the tx was forged / will be forged
-	ToForgeL1TxsNum *int64 `meddler:"to_forge_l1_txs_num"`
+	UserOrigin         *bool                 `meddler:"user_origin"`         // true if the tx was originated by a user, false if it was aoriginated by a coordinator. Note that this differ from the spec for implementation simplification purpposes
-	// UserOrigin is set to true if the tx was originated by a user, false if it was aoriginated
-	// by a coordinator. Note that this differ from the spec for implementation simplification
-	// purpposes
-	UserOrigin         *bool                 `meddler:"user_origin"`
 	FromEthAddr        ethCommon.Address     `meddler:"from_eth_addr"`
 	FromBJJ            babyjub.PublicKeyComp `meddler:"from_bjj"`
 	DepositAmount      *big.Int              `meddler:"deposit_amount,bigintnull"`

common/tx_test.go

@@ -21,10 +21,8 @@ func TestSignatureConstant(t *testing.T) {
 func TestTxIDScannerValue(t *testing.T) {
 	txid0 := &TxID{}
 	txid1 := &TxID{}
-	txid0B := [TxIDLen]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2,
+	txid0B := [TxIDLen]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2}
-		3, 4, 5, 6, 7, 8, 9, 0, 1, 2}
+	txid1B := [TxIDLen]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
-	txid1B := [TxIDLen]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-		0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
 
 	copy(txid0[:], txid0B[:])
 	copy(txid1[:], txid1B[:])

common/utils_test.go

@@ -21,23 +21,16 @@ func TestBJJFromStringWithChecksum(t *testing.T) {
 	assert.NoError(t, err)
 
 	// expected values computed with js implementation
-	assert.Equal(t,
+	assert.Equal(t, "2492816973395423007340226948038371729989170225696553239457870892535792679622", pk.X.String())
-		"2492816973395423007340226948038371729989170225696553239457870892535792679622",
+	assert.Equal(t, "15238403086306505038849621710779816852318505119327426213168494964113886299863", pk.Y.String())
-		pk.X.String())
-	assert.Equal(t,
-		"15238403086306505038849621710779816852318505119327426213168494964113886299863",
-		pk.Y.String())
 }
 
 func TestRmEndingZeroes(t *testing.T) {
-	s0, err :=
+	s0, err := merkletree.NewHashFromHex("0x0000000000000000000000000000000000000000000000000000000000000000")
-		merkletree.NewHashFromHex("0x0000000000000000000000000000000000000000000000000000000000000000")
 	require.NoError(t, err)
-	s1, err :=
+	s1, err := merkletree.NewHashFromHex("0x0000000000000000000000000000000000000000000000000000000000000001")
-		merkletree.NewHashFromHex("0x0000000000000000000000000000000000000000000000000000000000000001")
 	require.NoError(t, err)
-	s2, err :=
+	s2, err := merkletree.NewHashFromHex("0x0000000000000000000000000000000000000000000000000000000000000002")
-		merkletree.NewHashFromHex("0x0000000000000000000000000000000000000000000000000000000000000002")
 	require.NoError(t, err)
 
 	// expect cropped last zeroes

common/zk.go

@@ -1,4 +1,4 @@
-// Package common zk.go contains all the common data structures used at the
+// Package common contains all the common data structures used at the
 // hermez-node, zk.go contains the zkSnark inputs used to generate the proof
 package common
 
@@ -67,7 +67,7 @@ type ZKInputs struct {
 
 	// accumulate fees
 	// FeePlanTokens contains all the tokenIDs for which the fees are being
-	// accumulated and those fees accumulated will be paid to the FeeIdxs
+	// accumulated and those fees accoumulated will be paid to the FeeIdxs
 	// array.  The order of FeeIdxs & FeePlanTokens & State3 must match.
 	// Coordinator fees are processed correlated such as:
 	// [FeePlanTokens[i], FeeIdxs[i]]
@@ -130,8 +130,8 @@ type ZKInputs struct {
 	RqOffset []*big.Int `json:"rqOffset"` // uint8 (max 3 bits), len: [maxTx]
 
 	// transaction L2 request data
-	// RqTxCompressedDataV2 big.Int (max 251 bits), len: [maxTx]
+	// RqTxCompressedDataV2
-	RqTxCompressedDataV2 []*big.Int `json:"rqTxCompressedDataV2"`
+	RqTxCompressedDataV2 []*big.Int `json:"rqTxCompressedDataV2"` // big.Int (max 251 bits), len: [maxTx]
 	// RqToEthAddr
 	RqToEthAddr []*big.Int `json:"rqToEthAddr"` // ethCommon.Address, len: [maxTx]
 	// RqToBJJAy
@@ -301,8 +301,7 @@ func (z ZKInputs) MarshalJSON() ([]byte, error) {
 }
 
 // NewZKInputs returns a pointer to an initialized struct of ZKInputs
-func NewZKInputs(chainID uint16, maxTx, maxL1Tx, maxFeeIdxs, nLevels uint32,
+func NewZKInputs(chainID uint16, maxTx, maxL1Tx, maxFeeIdxs, nLevels uint32, currentNumBatch *big.Int) *ZKInputs {
-	currentNumBatch *big.Int) *ZKInputs {
 	zki := &ZKInputs{}
 	zki.Metadata.MaxFeeIdxs = maxFeeIdxs
 	zki.Metadata.MaxLevels = uint32(48) //nolint:gomnd
@@ -481,7 +480,7 @@ func (z ZKInputs) ToHashGlobalData() ([]byte, error) {
 	b = append(b, newExitRoot...)
 
 	// [MAX_L1_TX * (2 * MAX_NLEVELS + 528) bits] L1TxsData
-	l1TxDataLen := (2*z.Metadata.MaxLevels + 528) //nolint:gomnd
+	l1TxDataLen := (2*z.Metadata.MaxLevels + 528)
 	l1TxsDataLen := (z.Metadata.MaxL1Tx * l1TxDataLen)
 	l1TxsData := make([]byte, l1TxsDataLen/8) //nolint:gomnd
 	for i := 0; i < len(z.Metadata.L1TxsData); i++ {
@@ -507,14 +506,11 @@ func (z ZKInputs) ToHashGlobalData() ([]byte, error) {
 		l2TxsData = append(l2TxsData, z.Metadata.L2TxsData[i]...)
 	}
 	if len(l2TxsData) > int(expectedL2TxsDataLen) {
-		return nil, tracerr.Wrap(fmt.Errorf("len(l2TxsData): %d, expected: %d",
+		return nil, tracerr.Wrap(fmt.Errorf("len(l2TxsData): %d, expected: %d", len(l2TxsData), expectedL2TxsDataLen))
-			len(l2TxsData), expectedL2TxsDataLen))
 	}
 
 	b = append(b, l2TxsData...)
-	l2TxsPadding := make([]byte,
+	l2TxsPadding := make([]byte, (int(z.Metadata.MaxTx)-len(z.Metadata.L1TxsDataAvailability)-len(z.Metadata.L2TxsData))*int(l2TxDataLen)/8) //nolint:gomnd
-		(int(z.Metadata.MaxTx)-len(z.Metadata.L1TxsDataAvailability)-
-			len(z.Metadata.L2TxsData))*int(l2TxDataLen)/8) //nolint:gomnd
 	b = append(b, l2TxsPadding...)
 
 	// [NLevels * MAX_TOKENS_FEE bits] feeTxsData

config/config.go

@@ -44,6 +44,13 @@ type ForgeBatchGasCost struct {
 	L2Tx      uint64 `validate:"required"`
 }
 
+// CoordinatorAPI specifies the configuration parameters of the API in mode
+// coordinator
+type CoordinatorAPI struct {
+	// Coordinator enables the coordinator API endpoints
+	Coordinator bool
+}
+
 // Coordinator is the coordinator specific configuration.
 type Coordinator struct {
 	// ForgerAddress is the address under which this coordinator is forging
@@ -73,7 +80,7 @@ type Coordinator struct {
 	// checking the next block), used to decide when to stop scheduling new
 	// batches (by stopping the pipeline).
 	// For example, if we are at block 10 and ScheduleBatchBlocksAheadCheck
-	// is 5, even though at block 11 we canForge, the pipeline will be
+	// is 5, eventhough at block 11 we canForge, the pipeline will be
 	// stopped if we can't forge at block 15.
 	// This value should be the expected number of blocks it takes between
 	// scheduling a batch and having it mined.
@@ -83,7 +90,7 @@ type Coordinator struct {
 	// from the next block; used to decide when to stop sending batches to
 	// the smart contract.
 	// For example, if we are at block 10 and SendBatchBlocksMarginCheck is
-	// 5, even though at block 11 we canForge, the batch will be discarded
+	// 5, eventhough at block 11 we canForge, the batch will be discarded
 	// if we can't forge at block 15.
 	SendBatchBlocksMarginCheck int64
 	// ProofServerPollInterval is the waiting interval between polling the
@@ -126,7 +133,7 @@ type Coordinator struct {
 		// L2Txs is reached, L2Txs older than TTL will be deleted.
 		TTL Duration `validate:"required"`
 		// PurgeBatchDelay is the delay between batches to purge
-		// outdated transactions. Outdated L2Txs are those that have
+		// outdated transactions.  Oudated L2Txs are those that have
 		// been forged or marked as invalid for longer than the
 		// SafetyPeriod and pending L2Txs that have been in the pool
 		// for longer than TTL once there are MaxTxs.
@@ -136,7 +143,7 @@ type Coordinator struct {
 		// nonce.
 		InvalidateBatchDelay int64 `validate:"required"`
 		// PurgeBlockDelay is the delay between blocks to purge
-		// outdated transactions. Outdated L2Txs are those that have
+		// outdated transactions.  Oudated L2Txs are those that have
 		// been forged or marked as invalid for longer than the
 		// SafetyPeriod and pending L2Txs that have been in the pool
 		// for longer than TTL once there are MaxTxs.
@@ -168,7 +175,7 @@ type Coordinator struct {
 		MaxGasPrice *big.Int `validate:"required"`
 		// GasPriceIncPerc is the percentage increase of gas price set
 		// in an ethereum transaction from the suggested gas price by
-		// the ethereum node
+		// the ehtereum node
 		GasPriceIncPerc int64
 		// CheckLoopInterval is the waiting interval between receipt
 		// checks of ethereum transactions in the TxManager
@@ -197,10 +204,7 @@ type Coordinator struct {
 		// ForgeBatch transaction.
 		ForgeBatchGasCost ForgeBatchGasCost `validate:"required"`
 	} `validate:"required"`
-	API struct {
+	API   CoordinatorAPI `validate:"required"`
-		// Coordinator enables the coordinator API endpoints
-		Coordinator bool
-	} `validate:"required"`
 	Debug struct {
 		// BatchPath if set, specifies the path where batchInfo is stored
 		// in JSON in every step/update of the pipeline
@@ -215,6 +219,45 @@ type Coordinator struct {
 	}
 }
 
+// PostgreSQL is the postgreSQL configuration parameters.  It's possible to use
+// diferentiated SQL connections for read/write.  If the read configuration is
+// not provided, the write one it's going to be used for both reads and writes
+type PostgreSQL struct {
+	// Port of the PostgreSQL write server
+	PortWrite int `validate:"required"`
+	// Host of the PostgreSQL write server
+	HostWrite string `validate:"required"`
+	// User of the PostgreSQL write server
+	UserWrite string `validate:"required"`
+	// Password of the PostgreSQL write server
+	PasswordWrite string `validate:"required"`
+	// Name of the PostgreSQL write server database
+	NameWrite string `validate:"required"`
+	// Port of the PostgreSQL read server
+	PortRead int
+	// Host of the PostgreSQL read server
+	HostRead string
+	// User of the PostgreSQL read server
+	UserRead string
+	// Password of the PostgreSQL read server
+	PasswordRead string
+	// Name of the PostgreSQL read server database
+	NameRead string
+}
+
+// NodeDebug specifies debug configuration parameters
+type NodeDebug struct {
+	// APIAddress is the address where the debugAPI will listen if
+	// set
+	APIAddress string
+	// MeddlerLogs enables meddler debug mode, where unused columns and struct
+	// fields will be logged
+	MeddlerLogs bool
+	// GinDebugMode sets Gin-Gonic (the web framework) to run in
+	// debug mode
+	GinDebugMode bool
+}
+
 // Node is the hermez node configuration.
 type Node struct {
 	PriceUpdater struct {
@@ -231,32 +274,8 @@ type Node struct {
 		// Keep is the number of checkpoints to keep
 		Keep int `validate:"required"`
 	} `validate:"required"`
-	// It's possible to use diferentiated SQL connections for read/write.
+	PostgreSQL PostgreSQL `validate:"required"`
-	// If the read configuration is not provided, the write one it's going to be used
+	Web3       struct {
-	// for both reads and writes
-	PostgreSQL struct {
-		// Port of the PostgreSQL write server
-		PortWrite int `validate:"required"`
-		// Host of the PostgreSQL write server
-		HostWrite string `validate:"required"`
-		// User of the PostgreSQL write server
-		UserWrite string `validate:"required"`
-		// Password of the PostgreSQL write server
-		PasswordWrite string `validate:"required"`
-		// Name of the PostgreSQL write server database
-		NameWrite string `validate:"required"`
-		// Port of the PostgreSQL read server
-		PortRead int
-		// Host of the PostgreSQL read server
-		HostRead string
-		// User of the PostgreSQL read server
-		UserRead string
-		// Password of the PostgreSQL read server
-		PasswordRead string
-		// Name of the PostgreSQL read server database
-		NameRead string
-	} `validate:"required"`
-	Web3 struct {
 		// URL is the URL of the web3 ethereum-node RPC server
 		URL string `validate:"required"`
 	} `validate:"required"`
@@ -286,6 +305,7 @@ type Node struct {
 		// TokenHEZ address
 		TokenHEZName string `validate:"required"`
 	} `validate:"required"`
+	// API specifies the configuration parameters of the API
 	API struct {
 		// Address where the API will listen if set
 		Address string
@@ -303,20 +323,45 @@ type Node struct {
 		// can wait to stablish a SQL connection
 		SQLConnectionTimeout Duration
 	} `validate:"required"`
-	Debug struct {
+	Debug       NodeDebug   `validate:"required"`
-		// APIAddress is the address where the debugAPI will listen if
-		// set
-		APIAddress string
-		// MeddlerLogs enables meddler debug mode, where unused columns and struct
-		// fields will be logged
-		MeddlerLogs bool
-		// GinDebugMode sets Gin-Gonic (the web framework) to run in
-		// debug mode
-		GinDebugMode bool
-	}
 	Coordinator Coordinator `validate:"-"`
 }
 
+// APIServer is the api server configuration parameters
+type APIServer struct {
+	// NodeAPI specifies the configuration parameters of the API
+	API struct {
+		// Address where the API will listen if set
+		Address string `validate:"required"`
+		// Explorer enables the Explorer API endpoints
+		Explorer bool
+		// Maximum concurrent connections allowed between API and SQL
+		MaxSQLConnections int `validate:"required"`
+		// SQLConnectionTimeout is the maximum amount of time that an API request
+		// can wait to stablish a SQL connection
+		SQLConnectionTimeout Duration
+	} `validate:"required"`
+	PostgreSQL  PostgreSQL `validate:"required"`
+	Coordinator struct {
+		API struct {
+			// Coordinator enables the coordinator API endpoints
+			Coordinator bool
+		} `validate:"required"`
+		L2DB struct {
+			// MaxTxs is the maximum number of pending L2Txs that can be
+			// stored in the pool.  Once this number of pending L2Txs is
+			// reached, inserts to the pool will be denied until some of
+			// the pending txs are forged.
+			MaxTxs uint32 `validate:"required"`
+			// MinFeeUSD is the minimum fee in USD that a tx must pay in
+			// order to be accepted into the pool.  Txs with lower than
+			// minimum fee will be rejected at the API level.
+			MinFeeUSD float64
+		} `validate:"required"`
+	}
+	Debug NodeDebug `validate:"required"`
+}
+
 // Load loads a generic config.
 func Load(path string, cfg interface{}) error {
 	bs, err := ioutil.ReadFile(path) //nolint:gosec
@@ -330,8 +375,8 @@ func Load(path string, cfg interface{}) error {
 	return nil
 }
 
-// LoadCoordinator loads the Coordinator configuration from path.
+// LoadNode loads the Node configuration from path.
-func LoadCoordinator(path string) (*Node, error) {
+func LoadNode(path string, coordinator bool) (*Node, error) {
 	var cfg Node
 	if err := Load(path, &cfg); err != nil {
 		return nil, tracerr.Wrap(fmt.Errorf("error loading node configuration file: %w", err))
@@ -340,21 +385,28 @@ func LoadCoordinator(path string) (*Node, error) {
 	if err := validate.Struct(cfg); err != nil {
 		return nil, tracerr.Wrap(fmt.Errorf("error validating configuration file: %w", err))
 	}
-	if err := validate.Struct(cfg.Coordinator); err != nil {
+	if coordinator {
-		return nil, tracerr.Wrap(fmt.Errorf("error validating configuration file: %w", err))
+		if err := validate.Struct(cfg.Coordinator); err != nil {
+			return nil, tracerr.Wrap(fmt.Errorf("error validating configuration file: %w", err))
+		}
 	}
 	return &cfg, nil
 }
 
-// LoadNode loads the Node configuration from path.
+// LoadAPIServer loads the APIServer configuration from path.
-func LoadNode(path string) (*Node, error) {
+func LoadAPIServer(path string, coordinator bool) (*APIServer, error) {
-	var cfg Node
+	var cfg APIServer
 	if err := Load(path, &cfg); err != nil {
-		return nil, tracerr.Wrap(fmt.Errorf("error loading node configuration file: %w", err))
+		return nil, tracerr.Wrap(fmt.Errorf("error loading apiServer configuration file: %w", err))
 	}
 	validate := validator.New()
 	if err := validate.Struct(cfg); err != nil {
 		return nil, tracerr.Wrap(fmt.Errorf("error validating configuration file: %w", err))
 	}
+	if coordinator {
+		if err := validate.Struct(cfg.Coordinator); err != nil {
+			return nil, tracerr.Wrap(fmt.Errorf("error validating configuration file: %w", err))
+		}
+	}
 	return &cfg, nil
 }

coordinator/batch.go

@@ -8,7 +8,6 @@ import (
 	"path"
 	"time"
 
-	"github.com/ethereum/go-ethereum/accounts/abi/bind"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/eth"
@@ -91,9 +90,9 @@ type BatchInfo struct {
 	L2Txs                 []common.L2Tx
 	CoordIdxs             []common.Idx
 	ForgeBatchArgs        *eth.RollupForgeBatchArgs
-	Auth                  *bind.TransactOpts `json:"-"`
+	// FeesInfo
-	EthTx                 *types.Transaction
+	EthTx    *types.Transaction
-	EthTxErr              error
+	EthTxErr error
 	// SendTimestamp  the time of batch sent to ethereum
 	SendTimestamp time.Time
 	Receipt       *types.Receipt

coordinator/coordinator.go

@@ -25,9 +25,8 @@ import (
 
 var (
 	errLastL1BatchNotSynced  = fmt.Errorf("last L1Batch not synced yet")
-	errForgeNoTxsBeforeDelay = fmt.Errorf(
+	errForgeNoTxsBeforeDelay = fmt.Errorf("no txs to forge and we haven't reached the forge no txs delay")
-		"no txs to forge and we haven't reached the forge no txs delay")
+	errForgeBeforeDelay      = fmt.Errorf("we haven't reached the forge delay")
-	errForgeBeforeDelay = fmt.Errorf("we haven't reached the forge delay")
 )
 
 const (
@@ -54,7 +53,7 @@ type Config struct {
 	// checking the next block), used to decide when to stop scheduling new
 	// batches (by stopping the pipeline).
 	// For example, if we are at block 10 and ScheduleBatchBlocksAheadCheck
-	// is 5, even though at block 11 we canForge, the pipeline will be
+	// is 5, eventhough at block 11 we canForge, the pipeline will be
 	// stopped if we can't forge at block 15.
 	// This value should be the expected number of blocks it takes between
 	// scheduling a batch and having it mined.
@@ -64,7 +63,7 @@ type Config struct {
 	// from the next block; used to decide when to stop sending batches to
 	// the smart contract.
 	// For example, if we are at block 10 and SendBatchBlocksMarginCheck is
-	// 5, even though at block 11 we canForge, the batch will be discarded
+	// 5, eventhough at block 11 we canForge, the batch will be discarded
 	// if we can't forge at block 15.
 	// This value should be the expected number of blocks it takes between
 	// sending a batch and having it mined.
@@ -145,8 +144,8 @@ type Coordinator struct {
 	pipelineNum       int       // Pipeline sequential number.  The first pipeline is 1
 	pipelineFromBatch fromBatch // batch from which we started the pipeline
 	provers           []prover.Client
-	consts            synchronizer.SCConsts
+	consts            common.SCConsts
-	vars              synchronizer.SCVariables
+	vars              common.SCVariables
 	stats             synchronizer.Stats
 	started           bool
 
@@ -186,8 +185,8 @@ func NewCoordinator(cfg Config,
 	batchBuilder *batchbuilder.BatchBuilder,
 	serverProofs []prover.Client,
 	ethClient eth.ClientInterface,
-	scConsts *synchronizer.SCConsts,
+	scConsts *common.SCConsts,
-	initSCVars *synchronizer.SCVariables,
+	initSCVars *common.SCVariables,
 ) (*Coordinator, error) {
 	// nolint reason: hardcoded `1.0`, by design the percentage can't be over 100%
 	if cfg.L1BatchTimeoutPerc >= 1.0 { //nolint:gomnd
@@ -276,13 +275,13 @@ type MsgSyncBlock struct {
 	Batches []common.BatchData
 	// Vars contains each Smart Contract variables if they are updated, or
 	// nil if they haven't changed.
-	Vars synchronizer.SCVariablesPtr
+	Vars common.SCVariablesPtr
 }
 
 // MsgSyncReorg indicates a reorg
 type MsgSyncReorg struct {
 	Stats synchronizer.Stats
-	Vars  synchronizer.SCVariablesPtr
+	Vars  common.SCVariablesPtr
 }
 
 // MsgStopPipeline indicates a signal to reset the pipeline
@@ -301,7 +300,7 @@ func (c *Coordinator) SendMsg(ctx context.Context, msg interface{}) {
 	}
 }
 
-func updateSCVars(vars *synchronizer.SCVariables, update synchronizer.SCVariablesPtr) {
+func updateSCVars(vars *common.SCVariables, update common.SCVariablesPtr) {
 	if update.Rollup != nil {
 		vars.Rollup = *update.Rollup
 	}
@@ -313,7 +312,7 @@ func updateSCVars(vars *synchronizer.SCVariables, update synchronizer.SCVariable
 	}
 }
 
-func (c *Coordinator) syncSCVars(vars synchronizer.SCVariablesPtr) {
+func (c *Coordinator) syncSCVars(vars common.SCVariablesPtr) {
 	updateSCVars(&c.vars, vars)
 }
 
@@ -474,8 +473,7 @@ func (c *Coordinator) handleReorg(ctx context.Context, msg *MsgSyncReorg) error
 // handleStopPipeline handles stopping the pipeline.  If failedBatchNum is 0,
 // the next pipeline will start from the last state of the synchronizer,
 // otherwise, it will state from failedBatchNum-1.
-func (c *Coordinator) handleStopPipeline(ctx context.Context, reason string,
+func (c *Coordinator) handleStopPipeline(ctx context.Context, reason string, failedBatchNum common.BatchNum) error {
-	failedBatchNum common.BatchNum) error {
 	batchNum := c.stats.Sync.LastBatch.BatchNum
 	if failedBatchNum != 0 {
 		batchNum = failedBatchNum - 1

coordinator/coordinator_test.go

@@ -126,8 +126,7 @@ func newTestModules(t *testing.T) modules {
 	batchBuilderDBPath, err = ioutil.TempDir("", "tmpBatchBuilderDB")
 	require.NoError(t, err)
 	deleteme = append(deleteme, batchBuilderDBPath)
-	batchBuilder, err := batchbuilder.NewBatchBuilder(batchBuilderDBPath, syncStateDB, 0,
+	batchBuilder, err := batchbuilder.NewBatchBuilder(batchBuilderDBPath, syncStateDB, 0, uint64(nLevels))
-		uint64(nLevels))
 	assert.NoError(t, err)
 
 	return modules{
@@ -188,12 +187,12 @@ func newTestCoordinator(t *testing.T, forgerAddr ethCommon.Address, ethClient *t
 		&prover.MockClient{Delay: 400 * time.Millisecond},
 	}
 
-	scConsts := &synchronizer.SCConsts{
+	scConsts := &common.SCConsts{
 		Rollup:   *ethClientSetup.RollupConstants,
 		Auction:  *ethClientSetup.AuctionConstants,
 		WDelayer: *ethClientSetup.WDelayerConstants,
 	}
-	initSCVars := &synchronizer.SCVariables{
+	initSCVars := &common.SCVariables{
 		Rollup:   *ethClientSetup.RollupVariables,
 		Auction:  *ethClientSetup.AuctionVariables,
 		WDelayer: *ethClientSetup.WDelayerVariables,
@@ -206,7 +205,7 @@ func newTestCoordinator(t *testing.T, forgerAddr ethCommon.Address, ethClient *t
 
 func newTestSynchronizer(t *testing.T, ethClient *test.Client, ethClientSetup *test.ClientSetup,
 	modules modules) *synchronizer.Synchronizer {
-	sync, err := synchronizer.NewSynchronizer(ethClient, modules.historyDB, modules.l2DB, modules.stateDB,
+	sync, err := synchronizer.NewSynchronizer(ethClient, modules.historyDB, modules.stateDB,
 		synchronizer.Config{
 			StatsRefreshPeriod: 0 * time.Second,
 		})
@@ -529,7 +528,7 @@ func TestCoordinatorStress(t *testing.T) {
 				coord.SendMsg(ctx, MsgSyncBlock{
 					Stats:   *stats,
 					Batches: blockData.Rollup.Batches,
-					Vars: synchronizer.SCVariablesPtr{
+					Vars: common.SCVariablesPtr{
 						Rollup:   blockData.Rollup.Vars,
 						Auction:  blockData.Auction.Vars,
 						WDelayer: blockData.WDelayer.Vars,

coordinator/pipeline.go

@@ -22,7 +22,7 @@ import (
 
 type statsVars struct {
 	Stats synchronizer.Stats
-	Vars  synchronizer.SCVariablesPtr
+	Vars  common.SCVariablesPtr
 }
 
 type state struct {
@@ -36,7 +36,7 @@ type state struct {
 type Pipeline struct {
 	num    int
 	cfg    Config
-	consts synchronizer.SCConsts
+	consts common.SCConsts
 
 	// state
 	state         state
@@ -57,7 +57,7 @@ type Pipeline struct {
 	purger                *Purger
 
 	stats       synchronizer.Stats
-	vars        synchronizer.SCVariables
+	vars        common.SCVariables
 	statsVarsCh chan statsVars
 
 	ctx    context.Context
@@ -90,7 +90,7 @@ func NewPipeline(ctx context.Context,
 	coord *Coordinator,
 	txManager *TxManager,
 	provers []prover.Client,
-	scConsts *synchronizer.SCConsts,
+	scConsts *common.SCConsts,
 ) (*Pipeline, error) {
 	proversPool := NewProversPool(len(provers))
 	proversPoolSize := 0
@@ -124,8 +124,7 @@ func NewPipeline(ctx context.Context,
 }
 
 // SetSyncStatsVars is a thread safe method to sets the synchronizer Stats
-func (p *Pipeline) SetSyncStatsVars(ctx context.Context, stats *synchronizer.Stats,
+func (p *Pipeline) SetSyncStatsVars(ctx context.Context, stats *synchronizer.Stats, vars *common.SCVariablesPtr) {
-	vars *synchronizer.SCVariablesPtr) {
 	select {
 	case p.statsVarsCh <- statsVars{Stats: *stats, Vars: *vars}:
 	case <-ctx.Done():
@@ -134,7 +133,7 @@ func (p *Pipeline) SetSyncStatsVars(ctx context.Context, stats *synchronizer.Sta
 
 // reset pipeline state
 func (p *Pipeline) reset(batchNum common.BatchNum,
-	stats *synchronizer.Stats, vars *synchronizer.SCVariables) error {
+	stats *synchronizer.Stats, vars *common.SCVariables) error {
 	p.state = state{
 		batchNum:                     batchNum,
 		lastForgeL1TxsNum:            stats.Sync.LastForgeL1TxsNum,
@@ -195,7 +194,7 @@ func (p *Pipeline) reset(batchNum common.BatchNum,
 	return nil
 }
 
-func (p *Pipeline) syncSCVars(vars synchronizer.SCVariablesPtr) {
+func (p *Pipeline) syncSCVars(vars common.SCVariablesPtr) {
 	updateSCVars(&p.vars, vars)
 }
 
@@ -210,7 +209,7 @@ func (p *Pipeline) handleForgeBatch(ctx context.Context,
 		return nil, ctx.Err()
 	} else if err != nil {
 		log.Errorw("proversPool.Get", "err", err)
-		return nil, tracerr.Wrap(err)
+		return nil, err
 	}
 	defer func() {
 		// If we encounter any error (notice that this function returns
@@ -240,7 +239,7 @@ func (p *Pipeline) handleForgeBatch(ctx context.Context,
 		} else {
 			log.Errorw("forgeBatch", "err", err)
 		}
-		return nil, tracerr.Wrap(err)
+		return nil, err
 	}
 
 	// 3. Send the ZKInputs to the proof server
@@ -249,14 +248,14 @@ func (p *Pipeline) handleForgeBatch(ctx context.Context,
 		return nil, ctx.Err()
 	} else if err != nil {
 		log.Errorw("sendServerProof", "err", err)
-		return nil, tracerr.Wrap(err)
+		return nil, err
 	}
 	return batchInfo, nil
 }
 
 // Start the forging pipeline
 func (p *Pipeline) Start(batchNum common.BatchNum,
-	stats *synchronizer.Stats, vars *synchronizer.SCVariables) error {
+	stats *synchronizer.Stats, vars *common.SCVariables) error {
 	if p.started {
 		log.Fatal("Pipeline already started")
 	}
@@ -407,6 +406,11 @@ func (p *Pipeline) forgeBatch(batchNum common.BatchNum) (batchInfo *BatchInfo, e
 	batchInfo.Debug.StartTimestamp = now
 	batchInfo.Debug.StartBlockNum = p.stats.Eth.LastBlock.Num + 1
 
+	selectionCfg := &txselector.SelectionConfig{
+		MaxL1UserTxs:      common.RollupConstMaxL1UserTx,
+		TxProcessorConfig: p.cfg.TxProcessorConfig,
+	}
+
 	var poolL2Txs []common.PoolL2Tx
 	var discardedL2Txs []common.PoolL2Tx
 	var l1UserTxsExtra, l1CoordTxs []common.L1Tx
@@ -422,7 +426,7 @@ func (p *Pipeline) forgeBatch(batchNum common.BatchNum) (batchInfo *BatchInfo, e
 
 	// If we haven't reached the ForgeDelay, skip forging the batch
 	if slotCommitted && now.Sub(p.lastForgeTime) < p.cfg.ForgeDelay {
-		return nil, tracerr.Wrap(errForgeBeforeDelay)
+		return nil, errForgeBeforeDelay
 	}
 
 	// 1. Decide if we forge L2Tx or L1+L2Tx
@@ -437,14 +441,14 @@ func (p *Pipeline) forgeBatch(batchNum common.BatchNum) (batchInfo *BatchInfo, e
 			return nil, tracerr.Wrap(err)
 		}
 		coordIdxs, auths, l1UserTxsExtra, l1CoordTxs, poolL2Txs, discardedL2Txs, err =
-			p.txSelector.GetL1L2TxSelection(p.cfg.TxProcessorConfig, l1UserTxs)
+			p.txSelector.GetL1L2TxSelection(selectionCfg, l1UserTxs)
 		if err != nil {
 			return nil, tracerr.Wrap(err)
 		}
 	} else {
 		// 2b: only L2 txs
 		coordIdxs, auths, l1CoordTxs, poolL2Txs, discardedL2Txs, err =
-			p.txSelector.GetL2TxSelection(p.cfg.TxProcessorConfig)
+			p.txSelector.GetL2TxSelection(selectionCfg)
 		if err != nil {
 			return nil, tracerr.Wrap(err)
 		}
@@ -458,18 +462,17 @@ func (p *Pipeline) forgeBatch(batchNum common.BatchNum) (batchInfo *BatchInfo, e
 		noTxs := false
 		if len(l1UserTxsExtra) == 0 && len(l1CoordTxs) == 0 && len(poolL2Txs) == 0 {
 			if batchInfo.L1Batch {
-				// Query the number of unforged L1UserTxs
+				// Query the L1UserTxs in the queue following
-				// (either in a open queue or in a frozen
+				// the one we are trying to forge.
-				// not-yet-forged queue).
+				nextL1UserTxs, err := p.historyDB.GetUnforgedL1UserTxs(
-				count, err := p.historyDB.GetUnforgedL1UserTxsCount()
+					p.state.lastForgeL1TxsNum + 1)
 				if err != nil {
 					return nil, tracerr.Wrap(err)
 				}
 				// If there are future L1UserTxs, we forge a
-				// batch to advance the queues to be able to
+				// batch to advance the queues and forge the
-				// forge the L1UserTxs in the future.
+				// L1UserTxs in the future.  Otherwise, skip.
-				// Otherwise, skip.
+				if len(nextL1UserTxs) == 0 {
-				if count == 0 {
 					noTxs = true
 				}
 			} else {
@@ -480,7 +483,7 @@ func (p *Pipeline) forgeBatch(batchNum common.BatchNum) (batchInfo *BatchInfo, e
 			if err := p.txSelector.Reset(batchInfo.BatchNum-1, false); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
-			return nil, tracerr.Wrap(errForgeNoTxsBeforeDelay)
+			return nil, errForgeNoTxsBeforeDelay
 		}
 	}
 
@@ -496,15 +499,14 @@ func (p *Pipeline) forgeBatch(batchNum common.BatchNum) (batchInfo *BatchInfo, e
 	batchInfo.CoordIdxs = coordIdxs
 	batchInfo.VerifierIdx = p.cfg.VerifierIdx
 
-	if err := p.l2DB.StartForging(common.TxIDsFromPoolL2Txs(poolL2Txs),
+	if err := p.l2DB.StartForging(common.TxIDsFromPoolL2Txs(poolL2Txs), batchInfo.BatchNum); err != nil {
-		batchInfo.BatchNum); err != nil {
 		return nil, tracerr.Wrap(err)
 	}
 	if err := p.l2DB.UpdateTxsInfo(discardedL2Txs); err != nil {
 		return nil, tracerr.Wrap(err)
 	}
 
-	// Invalidate transactions that become invalid because of
+	// Invalidate transactions that become invalid beause of
 	// the poolL2Txs selected.  Will mark as invalid the txs that have a
 	// (fromIdx, nonce) which already appears in the selected txs (includes
 	// all the nonces smaller than the current one)
@@ -541,8 +543,7 @@ func (p *Pipeline) forgeBatch(batchNum common.BatchNum) (batchInfo *BatchInfo, e
 
 // waitServerProof gets the generated zkProof & sends it to the SmartContract
 func (p *Pipeline) waitServerProof(ctx context.Context, batchInfo *BatchInfo) error {
-	proof, pubInputs, err := batchInfo.ServerProof.GetProof(ctx) // blocking call,
+	proof, pubInputs, err := batchInfo.ServerProof.GetProof(ctx) // blocking call, until not resolved don't continue. Returns when the proof server has calculated the proof
-	// until not resolved don't continue. Returns when the proof server has calculated the proof
 	if err != nil {
 		return tracerr.Wrap(err)
 	}

coordinator/pipeline_test.go

@@ -140,7 +140,7 @@ func preloadSync(t *testing.T, ethClient *test.Client, sync *synchronizer.Synchr
 	blocks[0].Rollup.Batches[0].Batch.StateRoot =
 		newBigInt("0")
 	blocks[0].Rollup.Batches[1].Batch.StateRoot =
-		newBigInt("6860514559199319426609623120853503165917774887908204288119245630904770452486")
+		newBigInt("10941365282189107056349764238909072001483688090878331371699519307087372995595")
 
 	ethAddTokens(blocks, ethClient)
 	err = ethClient.CtlAddBlocks(blocks)
@@ -206,11 +206,7 @@ PoolTransfer(0) User2-User3: 300 (126)
 		require.NoError(t, err)
 	}
 
-	err = pipeline.reset(batchNum, syncStats, &synchronizer.SCVariables{
+	err = pipeline.reset(batchNum, syncStats, syncSCVars)
-		Rollup:   *syncSCVars.Rollup,
-		Auction:  *syncSCVars.Auction,
-		WDelayer: *syncSCVars.WDelayer,
-	})
 	require.NoError(t, err)
 	// Sanity check
 	sdbAccounts, err := pipeline.txSelector.LocalAccountsDB().TestGetAccounts()

coordinator/purger.go

@@ -14,7 +14,7 @@ import (
 // PurgerCfg is the purger configuration
 type PurgerCfg struct {
 	// PurgeBatchDelay is the delay between batches to purge outdated
-	// transactions. Outdated L2Txs are those that have been forged or
+	// transactions.  Oudated L2Txs are those that have been forged or
 	// marked as invalid for longer than the SafetyPeriod and pending L2Txs
 	// that have been in the pool for longer than TTL once there are
 	// MaxTxs.
@@ -23,7 +23,7 @@ type PurgerCfg struct {
 	// transactions due to nonce lower than the account nonce.
 	InvalidateBatchDelay int64
 	// PurgeBlockDelay is the delay between blocks to purge outdated
-	// transactions. Outdated L2Txs are those that have been forged or
+	// transactions.  Oudated L2Txs are those that have been forged or
 	// marked as invalid for longer than the SafetyPeriod and pending L2Txs
 	// that have been in the pool for longer than TTL once there are
 	// MaxTxs.

coordinator/txmanager.go

@@ -31,10 +31,10 @@ type TxManager struct {
 	batchCh   chan *BatchInfo
 	chainID   *big.Int
 	account   accounts.Account
-	consts    synchronizer.SCConsts
+	consts    common.SCConsts
 
 	stats       synchronizer.Stats
-	vars        synchronizer.SCVariables
+	vars        common.SCVariables
 	statsVarsCh chan statsVars
 
 	discardPipelineCh chan int // int refers to the pipelineNum
@@ -55,8 +55,7 @@ type TxManager struct {
 
 // NewTxManager creates a new TxManager
 func NewTxManager(ctx context.Context, cfg *Config, ethClient eth.ClientInterface, l2DB *l2db.L2DB,
-	coord *Coordinator, scConsts *synchronizer.SCConsts, initSCVars *synchronizer.SCVariables) (
+	coord *Coordinator, scConsts *common.SCConsts, initSCVars *common.SCVariables) (*TxManager, error) {
-	*TxManager, error) {
 	chainID, err := ethClient.EthChainID()
 	if err != nil {
 		return nil, tracerr.Wrap(err)
@@ -67,7 +66,7 @@ func NewTxManager(ctx context.Context, cfg *Config, ethClient eth.ClientInterfac
 	}
 	accNonce, err := ethClient.EthNonceAt(ctx, *address, nil)
 	if err != nil {
-		return nil, tracerr.Wrap(err)
+		return nil, err
 	}
 	log.Infow("TxManager started", "nonce", accNonce)
 	return &TxManager{
@@ -103,8 +102,7 @@ func (t *TxManager) AddBatch(ctx context.Context, batchInfo *BatchInfo) {
 }
 
 // SetSyncStatsVars is a thread safe method to sets the synchronizer Stats
-func (t *TxManager) SetSyncStatsVars(ctx context.Context, stats *synchronizer.Stats,
+func (t *TxManager) SetSyncStatsVars(ctx context.Context, stats *synchronizer.Stats, vars *common.SCVariablesPtr) {
-	vars *synchronizer.SCVariablesPtr) {
 	select {
 	case t.statsVarsCh <- statsVars{Stats: *stats, Vars: *vars}:
 	case <-ctx.Done():
@@ -120,7 +118,7 @@ func (t *TxManager) DiscardPipeline(ctx context.Context, pipelineNum int) {
 	}
 }
 
-func (t *TxManager) syncSCVars(vars synchronizer.SCVariablesPtr) {
+func (t *TxManager) syncSCVars(vars common.SCVariablesPtr) {
 	updateSCVars(&t.vars, vars)
 }
 
@@ -184,30 +182,19 @@ func addPerc(v *big.Int, p int64) *big.Int {
 	r.Mul(r, big.NewInt(p))
 	// nolint reason: to calculate percentages we divide by 100
 	r.Div(r, big.NewInt(100)) //nolit:gomnd
-	// If the increase is 0, force it to be 1 so that a gas increase
-	// doesn't result in the same value, making the transaction to be equal
-	// than before.
-	if r.Cmp(big.NewInt(0)) == 0 {
-		r = big.NewInt(1)
-	}
 	return r.Add(v, r)
 }
 
-func (t *TxManager) sendRollupForgeBatch(ctx context.Context, batchInfo *BatchInfo,
+func (t *TxManager) sendRollupForgeBatch(ctx context.Context, batchInfo *BatchInfo, resend bool) error {
-	resend bool) error {
 	var ethTx *types.Transaction
 	var err error
-	var auth *bind.TransactOpts
+	auth, err := t.NewAuth(ctx, batchInfo)
+	if err != nil {
+		return tracerr.Wrap(err)
+	}
+	auth.Nonce = big.NewInt(int64(t.accNextNonce))
 	if resend {
-		auth = batchInfo.Auth
+		auth.Nonce = big.NewInt(int64(batchInfo.EthTx.Nonce()))
-		auth.GasPrice = addPerc(auth.GasPrice, 10)
-	} else {
-		auth, err = t.NewAuth(ctx, batchInfo)
-		if err != nil {
-			return tracerr.Wrap(err)
-		}
-		batchInfo.Auth = auth
-		auth.Nonce = big.NewInt(int64(t.accNextNonce))
 	}
 	for attempt := 0; attempt < t.cfg.EthClientAttempts; attempt++ {
 		if auth.GasPrice.Cmp(t.cfg.MaxGasPrice) > 0 {
@@ -278,8 +265,7 @@ func (t *TxManager) sendRollupForgeBatch(ctx context.Context, batchInfo *BatchIn
 			t.lastSentL1BatchBlockNum = t.stats.Eth.LastBlock.Num + 1
 		}
 	}
-	if err := t.l2DB.DoneForging(common.TxIDsFromL2Txs(batchInfo.L2Txs),
+	if err := t.l2DB.DoneForging(common.TxIDsFromL2Txs(batchInfo.L2Txs), batchInfo.BatchNum); err != nil {
-		batchInfo.BatchNum); err != nil {
 		return tracerr.Wrap(err)
 	}
 	return nil
@@ -311,9 +297,7 @@ func (t *TxManager) checkEthTransactionReceipt(ctx context.Context, batchInfo *B
 		}
 	}
 	if err != nil {
-		return tracerr.Wrap(
+		return tracerr.Wrap(fmt.Errorf("reached max attempts for ethClient.EthTransactionReceipt: %w", err))
-			fmt.Errorf("reached max attempts for ethClient.EthTransactionReceipt: %w",
-				err))
 	}
 	batchInfo.Receipt = receipt
 	t.cfg.debugBatchStore(batchInfo)
@@ -503,7 +487,7 @@ func (t *TxManager) Run(ctx context.Context) {
 				// Our ethNode is giving an error different
 				// than "not found" when getting the receipt
 				// for the transaction, so we can't figure out
-				// if it was not mined, mined and successful or
+				// if it was not mined, mined and succesfull or
 				// mined and failed.  This could be due to the
 				// ethNode failure.
 				t.coord.SendMsg(ctx, MsgStopPipeline{
@@ -568,7 +552,7 @@ func (t *TxManager) removeBadBatchInfos(ctx context.Context) error {
 			// Our ethNode is giving an error different
 			// than "not found" when getting the receipt
 			// for the transaction, so we can't figure out
-			// if it was not mined, mined and successful or
+			// if it was not mined, mined and succesfull or
 			// mined and failed.  This could be due to the
 			// ethNode failure.
 			next++

db/historydb/apiqueries.go

@@ -1,8 +1,11 @@
 package historydb
 
 import (
+	"database/sql"
 	"errors"
 	"fmt"
+	"math/big"
+	"time"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/hermeznetwork/hermez-node/common"
@@ -32,9 +35,18 @@ func (hdb *HistoryDB) GetBatchAPI(batchNum common.BatchNum) (*BatchAPI, error) {
 		return nil, tracerr.Wrap(err)
 	}
 	defer hdb.apiConnCon.Release()
+	return hdb.getBatchAPI(hdb.dbRead, batchNum)
+}
+
+// GetBatchInternalAPI return the batch with the given batchNum
+func (hdb *HistoryDB) GetBatchInternalAPI(batchNum common.BatchNum) (*BatchAPI, error) {
+	return hdb.getBatchAPI(hdb.dbRead, batchNum)
+}
+
+func (hdb *HistoryDB) getBatchAPI(d meddler.DB, batchNum common.BatchNum) (*BatchAPI, error) {
 	batch := &BatchAPI{}
 	return batch, tracerr.Wrap(meddler.QueryRow(
-		hdb.dbRead, batch,
+		d, batch,
 		`SELECT batch.item_id, batch.batch_num, batch.eth_block_num,
 		batch.forger_addr, batch.fees_collected, batch.total_fees_usd, batch.state_root,
 		batch.num_accounts, batch.exit_root, batch.forge_l1_txs_num, batch.slot_num,
@@ -180,6 +192,14 @@ func (hdb *HistoryDB) GetBestBidsAPI(
 		return nil, 0, tracerr.Wrap(err)
 	}
 	defer hdb.apiConnCon.Release()
+	return hdb.getBestBidsAPI(hdb.dbRead, minSlotNum, maxSlotNum, bidderAddr, limit, order)
+}
+func (hdb *HistoryDB) getBestBidsAPI(
+	d meddler.DB,
+	minSlotNum, maxSlotNum *int64,
+	bidderAddr *ethCommon.Address,
+	limit *uint, order string,
+) ([]BidAPI, uint64, error) {
 	var query string
 	var args []interface{}
 	// JOIN the best bid of each slot with the latest update of each coordinator
@@ -214,7 +234,7 @@ func (hdb *HistoryDB) GetBestBidsAPI(
 	}
 	query = hdb.dbRead.Rebind(queryStr)
 	bidPtrs := []*BidAPI{}
-	if err := meddler.QueryAll(hdb.dbRead, &bidPtrs, query, args...); err != nil {
+	if err := meddler.QueryAll(d, &bidPtrs, query, args...); err != nil {
 		return nil, 0, tracerr.Wrap(err)
 	}
 	// log.Debug(query)
@@ -697,25 +717,6 @@ func (hdb *HistoryDB) GetExitsAPI(
 	return db.SlicePtrsToSlice(exits).([]ExitAPI), exits[0].TotalItems - uint64(len(exits)), nil
 }
 
-// GetBucketUpdatesAPI retrieves latest values for each bucket
-func (hdb *HistoryDB) GetBucketUpdatesAPI() ([]BucketUpdateAPI, error) {
-	cancel, err := hdb.apiConnCon.Acquire()
-	defer cancel()
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-	defer hdb.apiConnCon.Release()
-	var bucketUpdates []*BucketUpdateAPI
-	err = meddler.QueryAll(
-		hdb.dbRead, &bucketUpdates,
-		`SELECT num_bucket, withdrawals FROM bucket_update 
-		WHERE item_id in(SELECT max(item_id) FROM bucket_update 
-		group by num_bucket) 
-		ORDER BY num_bucket ASC;`,
-	)
-	return db.SlicePtrsToSlice(bucketUpdates).([]BucketUpdateAPI), tracerr.Wrap(err)
-}
-
 // GetCoordinatorsAPI returns a list of coordinators from the DB and pagination info
 func (hdb *HistoryDB) GetCoordinatorsAPI(
 	bidderAddr, forgerAddr *ethCommon.Address,
@@ -800,29 +801,6 @@ func (hdb *HistoryDB) GetAuctionVarsAPI() (*common.AuctionVariables, error) {
 	return auctionVars, tracerr.Wrap(err)
 }
 
-// GetAuctionVarsUntilSetSlotNumAPI returns all the updates of the auction vars
-// from the last entry in which DefaultSlotSetBidSlotNum <= slotNum
-func (hdb *HistoryDB) GetAuctionVarsUntilSetSlotNumAPI(slotNum int64, maxItems int) ([]MinBidInfo, error) {
-	cancel, err := hdb.apiConnCon.Acquire()
-	defer cancel()
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-	defer hdb.apiConnCon.Release()
-	auctionVars := []*MinBidInfo{}
-	query := `
-		SELECT DISTINCT default_slot_set_bid, default_slot_set_bid_slot_num FROM auction_vars
-		WHERE default_slot_set_bid_slot_num < $1
-		ORDER BY default_slot_set_bid_slot_num DESC
-		LIMIT $2;
-	`
-	err = meddler.QueryAll(hdb.dbRead, &auctionVars, query, slotNum, maxItems)
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-	return db.SlicePtrsToSlice(auctionVars).([]MinBidInfo), nil
-}
-
 // GetAccountAPI returns an account by its index
 func (hdb *HistoryDB) GetAccountAPI(idx common.Idx) (*AccountAPI, error) {
 	cancel, err := hdb.apiConnCon.Acquire()
@@ -941,125 +919,6 @@ func (hdb *HistoryDB) GetAccountsAPI(
 		accounts[0].TotalItems - uint64(len(accounts)), nil
 }
 
-// GetMetricsAPI returns metrics
-func (hdb *HistoryDB) GetMetricsAPI(lastBatchNum common.BatchNum) (*Metrics, error) {
-	cancel, err := hdb.apiConnCon.Acquire()
-	defer cancel()
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-	defer hdb.apiConnCon.Release()
-	metricsTotals := &MetricsTotals{}
-	metrics := &Metrics{}
-	err = meddler.QueryRow(
-		hdb.dbRead, metricsTotals, `SELECT
-		COALESCE (MIN(batch.batch_num), 0) as batch_num,
-		COALESCE (MIN(block.timestamp), NOW()) AS min_timestamp, 
-		COALESCE (MAX(block.timestamp), NOW()) AS max_timestamp
-		FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num
-		WHERE block.timestamp >= NOW() - INTERVAL '24 HOURS' and batch.batch_num <= $1;`, lastBatchNum)
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-
-	err = meddler.QueryRow(
-		hdb.dbRead, metricsTotals, `SELECT COUNT(*) as total_txs
-		FROM tx	WHERE tx.batch_num between $1 AND $2;`, metricsTotals.FirstBatchNum, lastBatchNum)
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-
-	seconds := metricsTotals.MaxTimestamp.Sub(metricsTotals.MinTimestamp).Seconds()
-	// Avoid dividing by 0
-	if seconds == 0 {
-		seconds++
-	}
-
-	metrics.TransactionsPerSecond = float64(metricsTotals.TotalTransactions) / seconds
-
-	if (lastBatchNum - metricsTotals.FirstBatchNum) > 0 {
-		metrics.TransactionsPerBatch = float64(metricsTotals.TotalTransactions) /
-			float64(lastBatchNum-metricsTotals.FirstBatchNum+1)
-	} else {
-		metrics.TransactionsPerBatch = float64(0)
-	}
-
-	err = meddler.QueryRow(
-		hdb.dbRead, metricsTotals, `SELECT COUNT(*) AS total_batches, 
-		COALESCE (SUM(total_fees_usd), 0) AS total_fees FROM batch 
-		WHERE batch_num between $1 and $2;`, metricsTotals.FirstBatchNum, lastBatchNum)
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-
-	if metricsTotals.TotalBatches > 0 {
-		metrics.BatchFrequency = seconds / float64(metricsTotals.TotalBatches)
-	} else {
-		metrics.BatchFrequency = 0
-	}
-	if metricsTotals.TotalTransactions > 0 {
-		metrics.AvgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
-	} else {
-		metrics.AvgTransactionFee = 0
-	}
-	err = meddler.QueryRow(
-		hdb.dbRead, metrics,
-		`SELECT COUNT(*) AS total_bjjs, COUNT(DISTINCT(bjj)) AS total_accounts FROM account;`)
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-	err = meddler.QueryRow(
-		hdb.dbRead, metrics,
-		`SELECT COALESCE (AVG(EXTRACT(EPOCH FROM (forged.timestamp - added.timestamp))), 0)
-			AS estimated_time_to_forge_l1 FROM tx
-		INNER JOIN block AS added ON tx.eth_block_num = added.eth_block_num
-		INNER JOIN batch AS forged_batch ON tx.batch_num = forged_batch.batch_num
-		INNER JOIN block AS forged ON forged_batch.eth_block_num = forged.eth_block_num
-		WHERE tx.batch_num between $1 and $2 AND tx.is_l1 AND tx.user_origin;`,
-		metricsTotals.FirstBatchNum, lastBatchNum,
-	)
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-
-	return metrics, nil
-}
-
-// GetAvgTxFeeAPI returns average transaction fee of the last 1h
-func (hdb *HistoryDB) GetAvgTxFeeAPI() (float64, error) {
-	cancel, err := hdb.apiConnCon.Acquire()
-	defer cancel()
-	if err != nil {
-		return 0, tracerr.Wrap(err)
-	}
-	defer hdb.apiConnCon.Release()
-	metricsTotals := &MetricsTotals{}
-	err = meddler.QueryRow(
-		hdb.dbRead, metricsTotals, `SELECT COUNT(tx.*) as total_txs, 
-		COALESCE (MIN(tx.batch_num), 0) as batch_num 
-		FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
-		WHERE block.timestamp >= NOW() - INTERVAL '1 HOURS';`)
-	if err != nil {
-		return 0, tracerr.Wrap(err)
-	}
-	err = meddler.QueryRow(
-		hdb.dbRead, metricsTotals, `SELECT COUNT(*) AS total_batches, 
-		COALESCE (SUM(total_fees_usd), 0) AS total_fees FROM batch 
-		WHERE batch_num > $1;`, metricsTotals.FirstBatchNum)
-	if err != nil {
-		return 0, tracerr.Wrap(err)
-	}
-
-	var avgTransactionFee float64
-	if metricsTotals.TotalTransactions > 0 {
-		avgTransactionFee = metricsTotals.TotalFeesUSD / float64(metricsTotals.TotalTransactions)
-	} else {
-		avgTransactionFee = 0
-	}
-
-	return avgTransactionFee, nil
-}
-
 // GetCommonAccountAPI returns the account associated to an account idx
 func (hdb *HistoryDB) GetCommonAccountAPI(idx common.Idx) (*common.Account, error) {
 	cancel, err := hdb.apiConnCon.Acquire()
@@ -1070,8 +929,257 @@ func (hdb *HistoryDB) GetCommonAccountAPI(idx common.Idx) (*common.Account, erro
 	defer hdb.apiConnCon.Release()
 	account := &common.Account{}
 	err = meddler.QueryRow(
-		hdb.dbRead, account, `SELECT idx, token_id, batch_num, bjj, eth_addr
+		hdb.dbRead, account, `SELECT * FROM account WHERE idx = $1;`, idx,
-		FROM account WHERE idx = $1;`, idx,
 	)
 	return account, tracerr.Wrap(err)
 }
+
+// GetCoordinatorAPI returns a coordinator by its bidderAddr
+func (hdb *HistoryDB) GetCoordinatorAPI(bidderAddr ethCommon.Address) (*CoordinatorAPI, error) {
+	cancel, err := hdb.apiConnCon.Acquire()
+	defer cancel()
+	if err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	defer hdb.apiConnCon.Release()
+	return hdb.getCoordinatorAPI(hdb.dbRead, bidderAddr)
+}
+
+func (hdb *HistoryDB) getCoordinatorAPI(d meddler.DB, bidderAddr ethCommon.Address) (*CoordinatorAPI, error) {
+	coordinator := &CoordinatorAPI{}
+	err := meddler.QueryRow(
+		d, coordinator,
+		"SELECT * FROM coordinator WHERE bidder_addr = $1 ORDER BY item_id DESC LIMIT 1;",
+		bidderAddr,
+	)
+	return coordinator, tracerr.Wrap(err)
+}
+
+// GetNodeInfoAPI retusnt he NodeInfo
+func (hdb *HistoryDB) GetNodeInfoAPI() (*NodeInfo, error) {
+	cancel, err := hdb.apiConnCon.Acquire()
+	defer cancel()
+	if err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	defer hdb.apiConnCon.Release()
+	return hdb.GetNodeInfo()
+}
+
+// GetBucketUpdatesInternalAPI returns the latest bucket updates
+func (hdb *HistoryDB) GetBucketUpdatesInternalAPI() ([]BucketUpdateAPI, error) {
+	var bucketUpdates []*BucketUpdateAPI
+	err := meddler.QueryAll(
+		hdb.dbRead, &bucketUpdates,
+		`SELECT num_bucket, withdrawals FROM bucket_update 
+			WHERE item_id in(SELECT max(item_id) FROM bucket_update 
+			group by num_bucket) 
+			ORDER BY num_bucket ASC;`,
+	)
+	return db.SlicePtrsToSlice(bucketUpdates).([]BucketUpdateAPI), tracerr.Wrap(err)
+}
+
+// GetNextForgersInternalAPI returns next forgers
+func (hdb *HistoryDB) GetNextForgersInternalAPI(auctionVars *common.AuctionVariables,
+	auctionConsts *common.AuctionConstants,
+	lastBlock common.Block, currentSlot, lastClosedSlot int64) ([]NextForgerAPI, error) {
+	secondsPerBlock := int64(15) //nolint:gomnd
+	// currentSlot and lastClosedSlot included
+	limit := uint(lastClosedSlot - currentSlot + 1)
+	bids, _, err := hdb.getBestBidsAPI(hdb.dbRead, &currentSlot, &lastClosedSlot, nil, &limit, "ASC")
+	if err != nil && tracerr.Unwrap(err) != sql.ErrNoRows {
+		return nil, tracerr.Wrap(err)
+	}
+	nextForgers := []NextForgerAPI{}
+	// Get min bid info
+	var minBidInfo []MinBidInfo
+	if currentSlot >= auctionVars.DefaultSlotSetBidSlotNum {
+		// All min bids can be calculated with the last update of AuctionVariables
+
+		minBidInfo = []MinBidInfo{{
+			DefaultSlotSetBid:        auctionVars.DefaultSlotSetBid,
+			DefaultSlotSetBidSlotNum: auctionVars.DefaultSlotSetBidSlotNum,
+		}}
+	} else {
+		// Get all the relevant updates from the DB
+		minBidInfo, err = hdb.getMinBidInfo(hdb.dbRead, currentSlot, lastClosedSlot)
+		if err != nil {
+			return nil, tracerr.Wrap(err)
+		}
+	}
+	// Create nextForger for each slot
+	for i := currentSlot; i <= lastClosedSlot; i++ {
+		fromBlock := i*int64(auctionConsts.BlocksPerSlot) +
+			auctionConsts.GenesisBlockNum
+		toBlock := (i+1)*int64(auctionConsts.BlocksPerSlot) +
+			auctionConsts.GenesisBlockNum - 1
+		nextForger := NextForgerAPI{
+			Period: Period{
+				SlotNum:   i,
+				FromBlock: fromBlock,
+				ToBlock:   toBlock,
+				FromTimestamp: lastBlock.Timestamp.Add(time.Second *
+					time.Duration(secondsPerBlock*(fromBlock-lastBlock.Num))),
+				ToTimestamp: lastBlock.Timestamp.Add(time.Second *
+					time.Duration(secondsPerBlock*(toBlock-lastBlock.Num))),
+			},
+		}
+		foundForger := false
+		// If there is a bid for a slot, get forger (coordinator)
+		for j := range bids {
+			slotNum := bids[j].SlotNum
+			if slotNum == i {
+				// There's a bid for the slot
+				// Check if the bid is greater than the minimum required
+				for i := 0; i < len(minBidInfo); i++ {
+					// Find the most recent update
+					if slotNum >= minBidInfo[i].DefaultSlotSetBidSlotNum {
+						// Get min bid
+						minBidSelector := slotNum % int64(len(auctionVars.DefaultSlotSetBid))
+						minBid := minBidInfo[i].DefaultSlotSetBid[minBidSelector]
+						// Check if the bid has beaten the minimum
+						bid, ok := new(big.Int).SetString(string(bids[j].BidValue), 10)
+						if !ok {
+							return nil, tracerr.New("Wrong bid value, error parsing it as big.Int")
+						}
+						if minBid.Cmp(bid) == 1 {
+							// Min bid is greater than bid, the slot will be forged by boot coordinator
+							break
+						}
+						foundForger = true
+						break
+					}
+				}
+				if !foundForger { // There is no bid or it's smaller than the minimum
+					break
+				}
+				coordinator, err := hdb.getCoordinatorAPI(hdb.dbRead, bids[j].Bidder)
+				if err != nil {
+					return nil, tracerr.Wrap(err)
+				}
+				nextForger.Coordinator = *coordinator
+				break
+			}
+		}
+		// If there is no bid, the coordinator that will forge is boot coordinator
+		if !foundForger {
+			nextForger.Coordinator = CoordinatorAPI{
+				Forger: auctionVars.BootCoordinator,
+				URL:    auctionVars.BootCoordinatorURL,
+			}
+		}
+		nextForgers = append(nextForgers, nextForger)
+	}
+	return nextForgers, nil
+}
+
+// GetMetricsInternalAPI returns the MetricsAPI
+func (hdb *HistoryDB) GetMetricsInternalAPI(lastBatchNum common.BatchNum) (*MetricsAPI, error) {
+	var metrics MetricsAPI
+	// Get the first and last batch of the last 24h and their timestamps
+	// if u.state.Network.LastBatch == nil {
+	// 	return &metrics, nil
+	// }
+	type period struct {
+		FromBatchNum  common.BatchNum `meddler:"from_batch_num"`
+		FromTimestamp time.Time       `meddler:"from_timestamp"`
+		ToBatchNum    common.BatchNum `meddler:"-"`
+		ToTimestamp   time.Time       `meddler:"to_timestamp"`
+	}
+	p := &period{
+		ToBatchNum: lastBatchNum,
+	}
+	if err := meddler.QueryRow(
+		hdb.dbRead, p, `SELECT
+			COALESCE (MIN(batch.batch_num), 0) as from_batch_num,
+			COALESCE (MIN(block.timestamp), NOW()) AS from_timestamp, 
+			COALESCE (MAX(block.timestamp), NOW()) AS to_timestamp
+			FROM batch INNER JOIN block ON batch.eth_block_num = block.eth_block_num
+			WHERE block.timestamp >= NOW() - INTERVAL '24 HOURS';`,
+	); err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	// Get the amount of txs of that period
+	row := hdb.dbRead.QueryRow(
+		`SELECT COUNT(*) as total_txs FROM tx WHERE tx.batch_num between $1 AND $2;`,
+		p.FromBatchNum, p.ToBatchNum,
+	)
+	var nTxs int
+	if err := row.Scan(&nTxs); err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	// Set txs/s
+	seconds := p.ToTimestamp.Sub(p.FromTimestamp).Seconds()
+	if seconds == 0 { // Avoid dividing by 0
+		seconds++
+	}
+	metrics.TransactionsPerSecond = float64(nTxs) / seconds
+	// Set txs/batch
+	nBatches := p.ToBatchNum - p.FromBatchNum + 1
+	if nBatches == 0 { // Avoid dividing by 0
+		nBatches++
+	}
+	if (p.ToBatchNum - p.FromBatchNum) > 0 {
+		fmt.Printf("DBG ntxs: %v, nBatches: %v\n", nTxs, nBatches)
+		metrics.TransactionsPerBatch = float64(nTxs) /
+			float64(nBatches)
+	} else {
+		metrics.TransactionsPerBatch = 0
+	}
+	// Get total fee of that period
+	row = hdb.dbRead.QueryRow(
+		`SELECT COALESCE (SUM(total_fees_usd), 0) FROM batch WHERE batch_num between $1 AND $2;`,
+		p.FromBatchNum, p.ToBatchNum,
+	)
+	var totalFee float64
+	if err := row.Scan(&totalFee); err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	// Set batch frequency
+	metrics.BatchFrequency = seconds / float64(nBatches)
+	if nTxs > 0 {
+		metrics.AvgTransactionFee = totalFee / float64(nTxs)
+	} else {
+		metrics.AvgTransactionFee = 0
+	}
+	// Get and set amount of registered accounts
+	type registeredAccounts struct {
+		TotalIdx int64 `meddler:"total_idx"`
+		TotalBJJ int64 `meddler:"total_bjj"`
+	}
+	ra := &registeredAccounts{}
+	if err := meddler.QueryRow(
+		hdb.dbRead, ra,
+		`SELECT COUNT(*) AS total_bjj, COUNT(DISTINCT(bjj)) AS total_idx FROM account;`,
+	); err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	metrics.TotalAccounts = ra.TotalIdx
+	metrics.TotalBJJs = ra.TotalBJJ
+	// Get and set estimated time to forge L1 tx
+	row = hdb.dbRead.QueryRow(
+		`SELECT COALESCE (AVG(EXTRACT(EPOCH FROM (forged.timestamp - added.timestamp))), 0) FROM tx
+			INNER JOIN block AS added ON tx.eth_block_num = added.eth_block_num
+			INNER JOIN batch AS forged_batch ON tx.batch_num = forged_batch.batch_num
+			INNER JOIN block AS forged ON forged_batch.eth_block_num = forged.eth_block_num
+			WHERE tx.batch_num between $1 and $2 AND tx.is_l1 AND tx.user_origin;`,
+		p.FromBatchNum, p.ToBatchNum,
+	)
+	var timeToForgeL1 float64
+	if err := row.Scan(&timeToForgeL1); err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	metrics.EstimatedTimeToForgeL1 = timeToForgeL1
+	return &metrics, nil
+}
+
+// GetStateAPI returns the StateAPI
+func (hdb *HistoryDB) GetStateAPI() (*StateAPI, error) {
+	cancel, err := hdb.apiConnCon.Acquire()
+	defer cancel()
+	if err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	defer hdb.apiConnCon.Release()
+	return hdb.getStateAPI(hdb.dbRead)
+}

db/historydb/historydb.go

@@ -179,7 +179,7 @@ func (hdb *HistoryDB) GetBatch(batchNum common.BatchNum) (*common.Batch, error)
 		batch.slot_num, batch.total_fees_usd FROM batch WHERE batch_num = $1;`,
 		batchNum,
 	)
-	return &batch, tracerr.Wrap(err)
+	return &batch, err
 }
 
 // GetAllBatches retrieve all batches from the DB
@@ -235,7 +235,7 @@ func (hdb *HistoryDB) GetLastBatch() (*common.Batch, error) {
 		batch.num_accounts, batch.last_idx, batch.exit_root, batch.forge_l1_txs_num,
 		batch.slot_num, batch.total_fees_usd FROM batch ORDER BY batch_num DESC LIMIT 1;`,
 	)
-	return &batch, tracerr.Wrap(err)
+	return &batch, err
 }
 
 // GetLastL1BatchBlockNum returns the blockNum of the latest forged l1Batch
@@ -486,14 +486,23 @@ func (hdb *HistoryDB) GetAllTokens() ([]TokenWithUSD, error) {
 	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), tracerr.Wrap(err)
 }
 
-// GetTokenSymbolsAndAddrs returns all the token symbols and addresses from the DB
+// GetTokenSymbols returns all the token symbols from the DB
-func (hdb *HistoryDB) GetTokenSymbolsAndAddrs() ([]TokenSymbolAndAddr, error) {
+func (hdb *HistoryDB) GetTokenSymbols() ([]string, error) {
-	var tokens []*TokenSymbolAndAddr
+	var tokenSymbols []string
-	err := meddler.QueryAll(
+	rows, err := hdb.dbRead.Query("SELECT symbol FROM token;")
-		hdb.dbRead, &tokens,
+	if err != nil {
-		"SELECT symbol, eth_addr FROM token;",
+		return nil, tracerr.Wrap(err)
-	)
+	}
-	return db.SlicePtrsToSlice(tokens).([]TokenSymbolAndAddr), tracerr.Wrap(err)
+	defer db.RowsClose(rows)
+	sym := new(string)
+	for rows.Next() {
+		err = rows.Scan(sym)
+		if err != nil {
+			return nil, tracerr.Wrap(err)
+		}
+		tokenSymbols = append(tokenSymbols, *sym)
+	}
+	return tokenSymbols, nil
 }
 
 // AddAccounts insert accounts into the DB
@@ -754,16 +763,6 @@ func (hdb *HistoryDB) GetUnforgedL1UserTxs(toForgeL1TxsNum int64) ([]common.L1Tx
 	return db.SlicePtrsToSlice(txs).([]common.L1Tx), tracerr.Wrap(err)
 }
 
-// GetUnforgedL1UserTxsCount returns the count of unforged L1Txs (either in
-// open or frozen queues that are not yet forged)
-func (hdb *HistoryDB) GetUnforgedL1UserTxsCount() (int, error) {
-	row := hdb.dbRead.QueryRow(
-		`SELECT COUNT(*) FROM tx WHERE batch_num IS NULL;`,
-	)
-	var count int
-	return count, tracerr.Wrap(row.Scan(&count))
-}
-
 // TODO: Think about chaning all the queries that return a last value, to queries that return the next valid value.
 
 // GetLastTxsPosition for a given to_forge_l1_txs_num
@@ -842,6 +841,18 @@ func (hdb *HistoryDB) GetAllBucketUpdates() ([]common.BucketUpdate, error) {
 	return db.SlicePtrsToSlice(bucketUpdates).([]common.BucketUpdate), tracerr.Wrap(err)
 }
 
+func (hdb *HistoryDB) getMinBidInfo(d meddler.DB,
+	currentSlot, lastClosedSlot int64) ([]MinBidInfo, error) {
+	minBidInfo := []*MinBidInfo{}
+	query := `
+		SELECT DISTINCT default_slot_set_bid, default_slot_set_bid_slot_num FROM auction_vars
+		WHERE default_slot_set_bid_slot_num < $1
+		ORDER BY default_slot_set_bid_slot_num DESC
+		LIMIT $2;`
+	err := meddler.QueryAll(d, &minBidInfo, query, lastClosedSlot, int(lastClosedSlot-currentSlot)+1)
+	return db.SlicePtrsToSlice(minBidInfo).([]MinBidInfo), tracerr.Wrap(err)
+}
+
 func (hdb *HistoryDB) addTokenExchanges(d meddler.DB, tokenExchanges []common.TokenExchange) error {
 	if len(tokenExchanges) == 0 {
 		return nil
@@ -1140,17 +1151,6 @@ func (hdb *HistoryDB) AddBlockSCData(blockData *common.BlockData) (err error) {
 	return tracerr.Wrap(txn.Commit())
 }
 
-// GetCoordinatorAPI returns a coordinator by its bidderAddr
-func (hdb *HistoryDB) GetCoordinatorAPI(bidderAddr ethCommon.Address) (*CoordinatorAPI, error) {
-	coordinator := &CoordinatorAPI{}
-	err := meddler.QueryRow(
-		hdb.dbRead, coordinator,
-		"SELECT * FROM coordinator WHERE bidder_addr = $1 ORDER BY item_id DESC LIMIT 1;",
-		bidderAddr,
-	)
-	return coordinator, tracerr.Wrap(err)
-}
-
 // AddAuctionVars insert auction vars into the DB
 func (hdb *HistoryDB) AddAuctionVars(auctionVars *common.AuctionVariables) error {
 	return tracerr.Wrap(meddler.Insert(hdb.dbWrite, "auction_vars", auctionVars))
@@ -1170,3 +1170,49 @@ func (hdb *HistoryDB) GetTokensTest() ([]TokenWithUSD, error) {
 	}
 	return db.SlicePtrsToSlice(tokens).([]TokenWithUSD), nil
 }
+
+// GetRecommendedFee returns the RecommendedFee information
+func (hdb *HistoryDB) GetRecommendedFee(minFeeUSD float64) (*common.RecommendedFee, error) {
+	var recommendedFee common.RecommendedFee
+	// Get total txs and the batch of the first selected tx of the last hour
+	type totalTxsSinceBatchNum struct {
+		TotalTxs      int             `meddler:"total_txs"`
+		FirstBatchNum common.BatchNum `meddler:"batch_num"`
+	}
+	ttsbn := &totalTxsSinceBatchNum{}
+	if err := meddler.QueryRow(
+		hdb.dbRead, ttsbn, `SELECT COUNT(tx.*) as total_txs, 
+			COALESCE (MIN(tx.batch_num), 0) as batch_num 
+			FROM tx INNER JOIN block ON tx.eth_block_num = block.eth_block_num
+			WHERE block.timestamp >= NOW() - INTERVAL '1 HOURS';`,
+	); err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	// Get the amount of batches and acumulated fees for the last hour
+	type totalBatchesAndFee struct {
+		TotalBatches int     `meddler:"total_batches"`
+		TotalFees    float64 `meddler:"total_fees"`
+	}
+	tbf := &totalBatchesAndFee{}
+	if err := meddler.QueryRow(
+		hdb.dbRead, tbf, `SELECT COUNT(*) AS total_batches, 
+			COALESCE (SUM(total_fees_usd), 0) AS total_fees FROM batch 
+			WHERE batch_num > $1;`, ttsbn.FirstBatchNum,
+	); err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	// Update NodeInfo struct
+	var avgTransactionFee float64
+	if ttsbn.TotalTxs > 0 {
+		avgTransactionFee = tbf.TotalFees / float64(ttsbn.TotalTxs)
+	} else {
+		avgTransactionFee = 0
+	}
+	recommendedFee.ExistingAccount =
+		math.Max(avgTransactionFee, minFeeUSD)
+	recommendedFee.CreatesAccount =
+		math.Max(createAccountExtraFeePercentage*avgTransactionFee, minFeeUSD)
+	recommendedFee.CreatesAccountAndRegister =
+		math.Max(createAccountInternalExtraFeePercentage*avgTransactionFee, minFeeUSD)
+	return &recommendedFee, nil
+}

db/historydb/historydb_test.go

@@ -43,7 +43,7 @@ func TestMain(m *testing.M) {
 	if err != nil {
 		panic(err)
 	}
-	apiConnCon := dbUtils.NewAPIConnectionController(1, time.Second)
+	apiConnCon := dbUtils.NewAPICnnectionController(1, time.Second)
 	historyDBWithACC = NewHistoryDB(db, db, apiConnCon)
 	// Run tests
 	result := m.Run()
@@ -720,10 +720,6 @@ func TestGetUnforgedL1UserTxs(t *testing.T) {
 	assert.Equal(t, 5, len(l1UserTxs))
 	assert.Equal(t, blocks[0].Rollup.L1UserTxs, l1UserTxs)
 
-	count, err := historyDB.GetUnforgedL1UserTxsCount()
-	require.NoError(t, err)
-	assert.Equal(t, 5, count)
-
 	// No l1UserTxs for this toForgeL1TxsNum
 	l1UserTxs, err = historyDB.GetUnforgedL1UserTxs(2)
 	require.NoError(t, err)
@@ -1176,7 +1172,7 @@ func TestGetMetricsAPI(t *testing.T) {
 		assert.NoError(t, err)
 	}
 
-	res, err := historyDBWithACC.GetMetricsAPI(common.BatchNum(numBatches))
+	res, err := historyDB.GetMetricsInternalAPI(common.BatchNum(numBatches))
 	assert.NoError(t, err)
 
 	assert.Equal(t, float64(numTx)/float64(numBatches), res.TransactionsPerBatch)
@@ -1254,7 +1250,7 @@ func TestGetMetricsAPIMoreThan24Hours(t *testing.T) {
 		assert.NoError(t, err)
 	}
 
-	res, err := historyDBWithACC.GetMetricsAPI(common.BatchNum(numBatches))
+	res, err := historyDBWithACC.GetMetricsInternalAPI(common.BatchNum(numBatches))
 	assert.NoError(t, err)
 
 	assert.InEpsilon(t, 1.0, res.TransactionsPerBatch, 0.1)
@@ -1269,13 +1265,7 @@ func TestGetMetricsAPIMoreThan24Hours(t *testing.T) {
 
 func TestGetMetricsAPIEmpty(t *testing.T) {
 	test.WipeDB(historyDB.DB())
-	_, err := historyDBWithACC.GetMetricsAPI(0)
+	_, err := historyDBWithACC.GetMetricsInternalAPI(0)
-	assert.NoError(t, err)
-}
-
-func TestGetAvgTxFeeEmpty(t *testing.T) {
-	test.WipeDB(historyDB.DB())
-	_, err := historyDBWithACC.GetAvgTxFeeAPI()
 	assert.NoError(t, err)
 }
 
@@ -1464,3 +1454,65 @@ func setTestBlocks(from, to int64) []common.Block {
 	}
 	return blocks
 }
+
+func TestNodeInfo(t *testing.T) {
+	test.WipeDB(historyDB.DB())
+
+	err := historyDB.SetStateInternalAPI(&StateAPI{})
+	require.NoError(t, err)
+
+	clientSetup := test.NewClientSetupExample()
+	constants := &Constants{
+		SCConsts: common.SCConsts{
+			Rollup:   *clientSetup.RollupConstants,
+			Auction:  *clientSetup.AuctionConstants,
+			WDelayer: *clientSetup.WDelayerConstants,
+		},
+		ChainID:       42,
+		HermezAddress: clientSetup.AuctionConstants.HermezRollup,
+	}
+	err = historyDB.SetConstants(constants)
+	require.NoError(t, err)
+
+	// Test parameters
+	stateAPI := &StateAPI{
+		NodePublicConfig: NodePublicConfig{
+			ForgeDelay: 3.1,
+		},
+		Network: NetworkAPI{
+			LastEthBlock:  12,
+			LastSyncBlock: 34,
+		},
+		Metrics: MetricsAPI{
+			TransactionsPerBatch: 1.1,
+			TotalAccounts:        42,
+		},
+		Rollup:            *NewRollupVariablesAPI(clientSetup.RollupVariables),
+		Auction:           *NewAuctionVariablesAPI(clientSetup.AuctionVariables),
+		WithdrawalDelayer: *clientSetup.WDelayerVariables,
+		RecommendedFee: common.RecommendedFee{
+			ExistingAccount: 0.15,
+		},
+	}
+	err = historyDB.SetStateInternalAPI(stateAPI)
+	require.NoError(t, err)
+
+	nodeConfig := &NodeConfig{
+		MaxPoolTxs: 123,
+		MinFeeUSD:  0.5,
+	}
+	err = historyDB.SetNodeConfig(nodeConfig)
+	require.NoError(t, err)
+
+	dbConstants, err := historyDB.GetConstants()
+	require.NoError(t, err)
+	assert.Equal(t, constants, dbConstants)
+
+	dbNodeConfig, err := historyDB.GetNodeConfig()
+	require.NoError(t, err)
+	assert.Equal(t, nodeConfig, dbNodeConfig)
+
+	dbStateAPI, err := historyDB.getStateAPI(historyDB.dbRead)
+	require.NoError(t, err)
+	assert.Equal(t, stateAPI, dbStateAPI)
+}

db/historydb/nodeinfo.go

@@ -0,0 +1,169 @@
+package historydb
+
+import (
+	"time"
+
+	ethCommon "github.com/ethereum/go-ethereum/common"
+	"github.com/hermeznetwork/hermez-node/common"
+	"github.com/hermeznetwork/tracerr"
+	"github.com/russross/meddler"
+)
+
+const (
+	createAccountExtraFeePercentage         float64 = 2
+	createAccountInternalExtraFeePercentage float64 = 2.5
+)
+
+// Period represents a time period in ethereum
+type Period struct {
+	SlotNum       int64     `json:"slotNum"`
+	FromBlock     int64     `json:"fromBlock"`
+	ToBlock       int64     `json:"toBlock"`
+	FromTimestamp time.Time `json:"fromTimestamp"`
+	ToTimestamp   time.Time `json:"toTimestamp"`
+}
+
+// NextForgerAPI represents the next forger exposed via the API
+type NextForgerAPI struct {
+	Coordinator CoordinatorAPI `json:"coordinator"`
+	Period      Period         `json:"period"`
+}
+
+// NetworkAPI is the network state exposed via the API
+type NetworkAPI struct {
+	LastEthBlock  int64           `json:"lastEthereumBlock"`
+	LastSyncBlock int64           `json:"lastSynchedBlock"`
+	LastBatch     *BatchAPI       `json:"lastBatch"`
+	CurrentSlot   int64           `json:"currentSlot"`
+	NextForgers   []NextForgerAPI `json:"nextForgers"`
+}
+
+// NodePublicConfig is the configuration of the node that is exposed via API
+type NodePublicConfig struct {
+	// ForgeDelay in seconds
+	ForgeDelay float64 `json:"forgeDelay"`
+}
+
+// StateAPI is an object representing the node and network state exposed via the API
+type StateAPI struct {
+	// NodePublicConfig is the configuration of the node that is exposed via API
+	NodePublicConfig  NodePublicConfig         `json:"nodeConfig"`
+	Network           NetworkAPI               `json:"network"`
+	Metrics           MetricsAPI               `json:"metrics"`
+	Rollup            RollupVariablesAPI       `json:"rollup"`
+	Auction           AuctionVariablesAPI      `json:"auction"`
+	WithdrawalDelayer common.WDelayerVariables `json:"withdrawalDelayer"`
+	RecommendedFee    common.RecommendedFee    `json:"recommendedFee"`
+}
+
+// Constants contains network constants
+type Constants struct {
+	common.SCConsts
+	ChainID       uint16
+	HermezAddress ethCommon.Address
+}
+
+// NodeConfig contains the node config exposed in the API
+type NodeConfig struct {
+	MaxPoolTxs uint32  `meddler:"max_pool_txs"`
+	MinFeeUSD  float64 `meddler:"min_fee"`
+}
+
+// NodeInfo contains information about he node used when serving the API
+type NodeInfo struct {
+	ItemID     int         `meddler:"item_id,pk"`
+	StateAPI   *StateAPI   `meddler:"state,json"`
+	NodeConfig *NodeConfig `meddler:"config,json"`
+	Constants  *Constants  `meddler:"constants,json"`
+}
+
+// GetNodeInfo returns the NodeInfo
+func (hdb *HistoryDB) GetNodeInfo() (*NodeInfo, error) {
+	ni := &NodeInfo{}
+	err := meddler.QueryRow(
+		hdb.dbRead, ni, `SELECT * FROM node_info WHERE item_id = 1;`,
+	)
+	return ni, tracerr.Wrap(err)
+}
+
+// GetConstants returns the Constats
+func (hdb *HistoryDB) GetConstants() (*Constants, error) {
+	var nodeInfo NodeInfo
+	err := meddler.QueryRow(
+		hdb.dbRead, &nodeInfo,
+		"SELECT constants FROM node_info WHERE item_id = 1;",
+	)
+	return nodeInfo.Constants, tracerr.Wrap(err)
+}
+
+// SetConstants sets the Constants
+func (hdb *HistoryDB) SetConstants(constants *Constants) error {
+	_constants := struct {
+		Constants *Constants `meddler:"constants,json"`
+	}{constants}
+	values, err := meddler.Default.Values(&_constants, false)
+	if err != nil {
+		return tracerr.Wrap(err)
+	}
+	_, err = hdb.dbWrite.Exec(
+		"UPDATE node_info SET constants = $1 WHERE item_id = 1;",
+		values[0],
+	)
+	return tracerr.Wrap(err)
+}
+
+// GetStateInternalAPI returns the StateAPI
+func (hdb *HistoryDB) GetStateInternalAPI() (*StateAPI, error) {
+	return hdb.getStateAPI(hdb.dbRead)
+}
+
+func (hdb *HistoryDB) getStateAPI(d meddler.DB) (*StateAPI, error) {
+	var nodeInfo NodeInfo
+	err := meddler.QueryRow(
+		d, &nodeInfo,
+		"SELECT state FROM node_info WHERE item_id = 1;",
+	)
+	return nodeInfo.StateAPI, tracerr.Wrap(err)
+}
+
+// SetStateInternalAPI sets the StateAPI
+func (hdb *HistoryDB) SetStateInternalAPI(stateAPI *StateAPI) error {
+	_stateAPI := struct {
+		StateAPI *StateAPI `meddler:"state,json"`
+	}{stateAPI}
+	values, err := meddler.Default.Values(&_stateAPI, false)
+	if err != nil {
+		return tracerr.Wrap(err)
+	}
+	_, err = hdb.dbWrite.Exec(
+		"UPDATE node_info SET state = $1 WHERE item_id = 1;",
+		values[0],
+	)
+	return tracerr.Wrap(err)
+}
+
+// GetNodeConfig returns the NodeConfig
+func (hdb *HistoryDB) GetNodeConfig() (*NodeConfig, error) {
+	var nodeInfo NodeInfo
+	err := meddler.QueryRow(
+		hdb.dbRead, &nodeInfo,
+		"SELECT config FROM node_info WHERE item_id = 1;",
+	)
+	return nodeInfo.NodeConfig, tracerr.Wrap(err)
+}
+
+// SetNodeConfig sets the NodeConfig
+func (hdb *HistoryDB) SetNodeConfig(nodeConfig *NodeConfig) error {
+	_nodeConfig := struct {
+		NodeConfig *NodeConfig `meddler:"config,json"`
+	}{nodeConfig}
+	values, err := meddler.Default.Values(&_nodeConfig, false)
+	if err != nil {
+		return tracerr.Wrap(err)
+	}
+	_, err = hdb.dbWrite.Exec(
+		"UPDATE node_info SET config = $1 WHERE item_id = 1;",
+		values[0],
+	)
+	return tracerr.Wrap(err)
+}

db/historydb/views.go

@@ -147,12 +147,6 @@ type txWrite struct {
 	Nonce *common.Nonce       `meddler:"nonce"`
 }
 
-// TokenSymbolAndAddr token representation with only Eth addr and symbol
-type TokenSymbolAndAddr struct {
-	Symbol string            `meddler:"symbol"`
-	Addr   ethCommon.Address `meddler:"eth_addr"`
-}
-
 // TokenWithUSD add USD info to common.Token
 type TokenWithUSD struct {
 	ItemID      uint64            `json:"itemId" meddler:"item_id"`
@@ -308,26 +302,15 @@ type BatchAPI struct {
 	LastItem      uint64                 `json:"-" meddler:"last_item"`
 }
 
-// Metrics define metrics of the network
+// MetricsAPI define metrics of the network
-type Metrics struct {
+type MetricsAPI struct {
 	TransactionsPerBatch   float64 `json:"transactionsPerBatch"`
 	BatchFrequency         float64 `json:"batchFrequency"`
 	TransactionsPerSecond  float64 `json:"transactionsPerSecond"`
 	TotalAccounts          int64   `json:"totalAccounts" meddler:"total_accounts"`
 	TotalBJJs              int64   `json:"totalBJJs" meddler:"total_bjjs"`
 	AvgTransactionFee      float64 `json:"avgTransactionFee"`
-	EstimatedTimeToForgeL1 float64 `json:"estimatedTimeToForgeL1" meddler:"estimated_time_to_forge_l1"`
+	EstimatedTimeToForgeL1 float64 `json:"estimatedTimeToForgeL1" meddler:"estimatedTimeToForgeL1"`
-}
-
-// MetricsTotals is used to get temporal information from HistoryDB
-// to calculate data to be stored into the Metrics struct
-type MetricsTotals struct {
-	TotalTransactions uint64          `meddler:"total_txs"`
-	FirstBatchNum     common.BatchNum `meddler:"batch_num"`
-	TotalBatches      int64           `meddler:"total_batches"`
-	TotalFeesUSD      float64         `meddler:"total_fees"`
-	MinTimestamp      time.Time       `meddler:"min_timestamp,utctime"`
-	MaxTimestamp      time.Time       `meddler:"max_timestamp,utctime"`
 }
 
 // BidAPI is a representation of a bid with additional information
@@ -380,6 +363,27 @@ type RollupVariablesAPI struct {
 	SafeMode              bool                                          `json:"safeMode" meddler:"safe_mode"`
 }
 
+// NewRollupVariablesAPI creates a RollupVariablesAPI from common.RollupVariables
+func NewRollupVariablesAPI(rollupVariables *common.RollupVariables) *RollupVariablesAPI {
+	rollupVars := RollupVariablesAPI{
+		EthBlockNum:           rollupVariables.EthBlockNum,
+		FeeAddToken:           apitypes.NewBigIntStr(rollupVariables.FeeAddToken),
+		ForgeL1L2BatchTimeout: rollupVariables.ForgeL1L2BatchTimeout,
+		WithdrawalDelay:       rollupVariables.WithdrawalDelay,
+		SafeMode:              rollupVariables.SafeMode,
+	}
+
+	for i, bucket := range rollupVariables.Buckets {
+		rollupVars.Buckets[i] = BucketParamsAPI{
+			CeilUSD:             apitypes.NewBigIntStr(bucket.CeilUSD),
+			Withdrawals:         apitypes.NewBigIntStr(bucket.Withdrawals),
+			BlockWithdrawalRate: apitypes.NewBigIntStr(bucket.BlockWithdrawalRate),
+			MaxWithdrawals:      apitypes.NewBigIntStr(bucket.MaxWithdrawals),
+		}
+	}
+	return &rollupVars
+}
+
 // AuctionVariablesAPI are the variables of the Auction Smart Contract
 type AuctionVariablesAPI struct {
 	EthBlockNum int64 `json:"ethereumBlockNum" meddler:"eth_block_num"`
@@ -404,3 +408,28 @@ type AuctionVariablesAPI struct {
 	// SlotDeadline Number of blocks at the end of a slot in which any coordinator can forge if the winner has not forged one before
 	SlotDeadline uint8 `json:"slotDeadline" meddler:"slot_deadline" validate:"required"`
 }
+
+// NewAuctionVariablesAPI creates a AuctionVariablesAPI from common.AuctionVariables
+func NewAuctionVariablesAPI(auctionVariables *common.AuctionVariables) *AuctionVariablesAPI {
+	auctionVars := AuctionVariablesAPI{
+		EthBlockNum:              auctionVariables.EthBlockNum,
+		DonationAddress:          auctionVariables.DonationAddress,
+		BootCoordinator:          auctionVariables.BootCoordinator,
+		BootCoordinatorURL:       auctionVariables.BootCoordinatorURL,
+		DefaultSlotSetBidSlotNum: auctionVariables.DefaultSlotSetBidSlotNum,
+		ClosedAuctionSlots:       auctionVariables.ClosedAuctionSlots,
+		OpenAuctionSlots:         auctionVariables.OpenAuctionSlots,
+		Outbidding:               auctionVariables.Outbidding,
+		SlotDeadline:             auctionVariables.SlotDeadline,
+	}
+
+	for i, slot := range auctionVariables.DefaultSlotSetBid {
+		auctionVars.DefaultSlotSetBid[i] = apitypes.NewBigIntStr(slot)
+	}
+
+	for i, ratio := range auctionVariables.AllocationRatio {
+		auctionVars.AllocationRatio[i] = ratio
+	}
+
+	return &auctionVars
+}

db/kvdb/kvdb.go

@@ -316,7 +316,7 @@ func (k *KVDB) ResetFromSynchronizer(batchNum common.BatchNum, synchronizerKVDB
 
 	checkpointPath := path.Join(k.cfg.Path, fmt.Sprintf("%s%d", PathBatchNum, batchNum))
 
-	// copy synchronizer 'BatchNumX' to 'BatchNumX'
+	// copy synchronizer'BatchNumX' to 'BatchNumX'
 	if err := synchronizerKVDB.MakeCheckpointFromTo(batchNum, checkpointPath); err != nil {
 		return tracerr.Wrap(err)
 	}
@@ -458,7 +458,7 @@ func (k *KVDB) CheckpointExists(batchNum common.BatchNum) (bool, error) {
 	if _, err := os.Stat(source); os.IsNotExist(err) {
 		return false, nil
 	} else if err != nil {
-		return false, tracerr.Wrap(err)
+		return false, err
 	}
 	return true, nil
 }
@@ -544,12 +544,10 @@ func (k *KVDB) MakeCheckpointFromTo(fromBatchNum common.BatchNum, dest string) e
 	// synchronizer to the same batchNum
 	k.m.Lock()
 	defer k.m.Unlock()
-	return PebbleMakeCheckpoint(source, dest)
+	return pebbleMakeCheckpoint(source, dest)
 }
 
-// PebbleMakeCheckpoint is a hepler function to make a pebble checkpoint from
+func pebbleMakeCheckpoint(source, dest string) error {
-// source to dest.
-func PebbleMakeCheckpoint(source, dest string) error {
 	// Remove dest folder (if it exists) before doing the checkpoint
 	if _, err := os.Stat(dest); os.IsNotExist(err) {
 	} else if err != nil {

db/l2db/l2db.go

@@ -74,16 +74,6 @@ func (l2db *L2DB) AddAccountCreationAuth(auth *common.AccountCreationAuth) error
 	return tracerr.Wrap(err)
 }
 
-// AddManyAccountCreationAuth inserts a batch of accounts creation authorization
-// if not exist into the DB
-func (l2db *L2DB) AddManyAccountCreationAuth(auths []common.AccountCreationAuth) error {
-	_, err := sqlx.NamedExec(l2db.dbWrite,
-		`INSERT INTO account_creation_auth (eth_addr, bjj, signature)
-				VALUES (:ethaddr, :bjj, :signature) 
-				ON CONFLICT (eth_addr) DO NOTHING`, auths)
-	return tracerr.Wrap(err)
-}
-
 // GetAccountCreationAuth returns an account creation authorization from the DB
 func (l2db *L2DB) GetAccountCreationAuth(addr ethCommon.Address) (*common.AccountCreationAuth, error) {
 	auth := new(common.AccountCreationAuth)
@@ -320,7 +310,7 @@ func (l2db *L2DB) InvalidateOldNonces(updatedAccounts []common.IdxNonce, batchNu
 		return nil
 	}
 	// Fill the batch_num in the query with Sprintf because we are using a
-	// named query which works with slices, and doesn't handle an extra
+	// named query which works with slices, and doens't handle an extra
 	// individual argument.
 	query := fmt.Sprintf(invalidateOldNoncesQuery, batchNum)
 	if _, err := sqlx.NamedExec(l2db.dbWrite, query, updatedAccounts); err != nil {

db/l2db/l2db_test.go

@@ -38,7 +38,7 @@ func TestMain(m *testing.M) {
 		panic(err)
 	}
 	l2DB = NewL2DB(db, db, 10, 1000, 0.0, 24*time.Hour, nil)
-	apiConnCon := dbUtils.NewAPIConnectionController(1, time.Second)
+	apiConnCon := dbUtils.NewAPICnnectionController(1, time.Second)
 	l2DBWithACC = NewL2DB(db, db, 10, 1000, 0.0, 24*time.Hour, apiConnCon)
 	test.WipeDB(l2DB.DB())
 	historyDB = historydb.NewHistoryDB(db, db, nil)
@@ -725,43 +725,6 @@ func TestAuth(t *testing.T) {
 	}
 }
 
-func TestManyAuth(t *testing.T) {
-	test.WipeDB(l2DB.DB())
-	const nAuths = 5
-	chainID := uint16(0)
-	hermezContractAddr := ethCommon.HexToAddress("0xc344E203a046Da13b0B4467EB7B3629D0C99F6E6")
-	// Generate authorizations
-	genAuths := test.GenAuths(nAuths, chainID, hermezContractAddr)
-	auths := make([]common.AccountCreationAuth, len(genAuths))
-	// Convert to a non-pointer slice
-	for i := 0; i < len(genAuths); i++ {
-		auths[i] = *genAuths[i]
-	}
-
-	// Add a duplicate one to check the not exist condition
-	err := l2DB.AddAccountCreationAuth(genAuths[0])
-	require.NoError(t, err)
-
-	// Add to the DB
-	err = l2DB.AddManyAccountCreationAuth(auths)
-	require.NoError(t, err)
-
-	// Assert the result
-	for i := 0; i < len(auths); i++ {
-		// Fetch from DB
-		auth, err := l2DB.GetAccountCreationAuth(auths[i].EthAddr)
-		require.NoError(t, err)
-		// Check fetched vs generated
-		assert.Equal(t, auths[i].EthAddr, auth.EthAddr)
-		assert.Equal(t, auths[i].BJJ, auth.BJJ)
-		assert.Equal(t, auths[i].Signature, auth.Signature)
-		assert.Equal(t, auths[i].Timestamp.Unix(), auths[i].Timestamp.Unix())
-		nameZone, offset := auths[i].Timestamp.Zone()
-		assert.Equal(t, "UTC", nameZone)
-		assert.Equal(t, 0, offset)
-	}
-}
-
 func TestAddGet(t *testing.T) {
 	err := prepareHistoryDB(historyDB)
 	if err != nil {

db/migrations/0001.sql

@@ -661,6 +661,16 @@ CREATE TABLE account_creation_auth (
     timestamp TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT timezone('utc', now())
 );
 
+CREATE TABLE node_info (
+    item_id SERIAL PRIMARY KEY,
+    state BYTEA,            -- object returned by GET /state
+    config BYTEA,           -- Node config
+    -- max_pool_txs BIGINT,    -- L2DB config
+    -- min_fee NUMERIC,        -- L2DB config
+    constants BYTEA         -- info of the network that is constant
+);
+INSERT INTO node_info(item_id) VALUES (1); -- Always have a single row that we will update
+
 -- +migrate Down
 -- triggers
 DROP TRIGGER IF EXISTS trigger_token_usd_update ON token;
@@ -675,6 +685,7 @@ DROP FUNCTION IF EXISTS set_tx;
 DROP FUNCTION IF EXISTS forge_l1_user_txs;
 DROP FUNCTION IF EXISTS set_pool_tx;
 -- drop tables IF EXISTS
+DROP TABLE IF EXISTS node_info;
 DROP TABLE IF EXISTS account_creation_auth;
 DROP TABLE IF EXISTS tx_pool;
 DROP TABLE IF EXISTS auction_vars;

db/statedb/statedb.go

@@ -17,8 +17,7 @@ import (
 var (
 	// ErrStateDBWithoutMT is used when a method that requires a MerkleTree
 	// is called in a StateDB that does not have a MerkleTree defined
-	ErrStateDBWithoutMT = errors.New(
+	ErrStateDBWithoutMT = errors.New("Can not call method to use MerkleTree in a StateDB without MerkleTree")
-		"Can not call method to use MerkleTree in a StateDB without MerkleTree")
 
 	// ErrAccountAlreadyExists is used when CreateAccount is called and the
 	// Account already exists
@@ -29,8 +28,7 @@ var (
 	ErrIdxNotFound = errors.New("Idx can not be found")
 	// ErrGetIdxNoCase is used when trying to get the Idx from EthAddr &
 	// BJJ with not compatible combination
-	ErrGetIdxNoCase = errors.New(
+	ErrGetIdxNoCase = errors.New("Can not get Idx due unexpected combination of ethereum Address & BabyJubJub PublicKey")
-		"Can not get Idx due unexpected combination of ethereum Address & BabyJubJub PublicKey")
 
 	// PrefixKeyIdx is the key prefix for idx in the db
 	PrefixKeyIdx = []byte("i:")
@@ -146,8 +144,7 @@ func NewStateDB(cfg Config) (*StateDB, error) {
 		}
 	}
 	if cfg.Type == TypeTxSelector && cfg.NLevels != 0 {
-		return nil, tracerr.Wrap(
+		return nil, tracerr.Wrap(fmt.Errorf("invalid StateDB parameters: StateDB type==TypeStateDB can not have nLevels!=0"))
-			fmt.Errorf("invalid StateDB parameters: StateDB type==TypeStateDB can not have nLevels!=0"))
 	}
 
 	return &StateDB{
@@ -350,8 +347,7 @@ func GetAccountInTreeDB(sto db.Storage, idx common.Idx) (*common.Account, error)
 // CreateAccount creates a new Account in the StateDB for the given Idx.  If
 // StateDB.MT==nil, MerkleTree is not affected, otherwise updates the
 // MerkleTree, returning a CircomProcessorProof.
-func (s *StateDB) CreateAccount(idx common.Idx, account *common.Account) (
+func (s *StateDB) CreateAccount(idx common.Idx, account *common.Account) (*merkletree.CircomProcessorProof, error) {
-	*merkletree.CircomProcessorProof, error) {
 	cpp, err := CreateAccountInTreeDB(s.db.DB(), s.MT, idx, account)
 	if err != nil {
 		return cpp, tracerr.Wrap(err)
@@ -365,8 +361,7 @@ func (s *StateDB) CreateAccount(idx common.Idx, account *common.Account) (
 // from ExitTree.  Creates a new Account in the StateDB for the given Idx.  If
 // StateDB.MT==nil, MerkleTree is not affected, otherwise updates the
 // MerkleTree, returning a CircomProcessorProof.
-func CreateAccountInTreeDB(sto db.Storage, mt *merkletree.MerkleTree, idx common.Idx,
+func CreateAccountInTreeDB(sto db.Storage, mt *merkletree.MerkleTree, idx common.Idx, account *common.Account) (*merkletree.CircomProcessorProof, error) {
-	account *common.Account) (*merkletree.CircomProcessorProof, error) {
 	// store at the DB the key: v, and value: leaf.Bytes()
 	v, err := account.HashValue()
 	if err != nil {
@@ -415,8 +410,7 @@ func CreateAccountInTreeDB(sto db.Storage, mt *merkletree.MerkleTree, idx common
 // UpdateAccount updates the Account in the StateDB for the given Idx.  If
 // StateDB.mt==nil, MerkleTree is not affected, otherwise updates the
 // MerkleTree, returning a CircomProcessorProof.
-func (s *StateDB) UpdateAccount(idx common.Idx, account *common.Account) (
+func (s *StateDB) UpdateAccount(idx common.Idx, account *common.Account) (*merkletree.CircomProcessorProof, error) {
-	*merkletree.CircomProcessorProof, error) {
 	return UpdateAccountInTreeDB(s.db.DB(), s.MT, idx, account)
 }
 
@@ -424,8 +418,7 @@ func (s *StateDB) UpdateAccount(idx common.Idx, account *common.Account) (
 // from ExitTree.  Updates the Account in the StateDB for the given Idx.  If
 // StateDB.mt==nil, MerkleTree is not affected, otherwise updates the
 // MerkleTree, returning a CircomProcessorProof.
-func UpdateAccountInTreeDB(sto db.Storage, mt *merkletree.MerkleTree, idx common.Idx,
+func UpdateAccountInTreeDB(sto db.Storage, mt *merkletree.MerkleTree, idx common.Idx, account *common.Account) (*merkletree.CircomProcessorProof, error) {
-	account *common.Account) (*merkletree.CircomProcessorProof, error) {
 	// store at the DB the key: v, and value: account.Bytes()
 	v, err := account.HashValue()
 	if err != nil {
@@ -510,7 +503,7 @@ func (l *LocalStateDB) CheckpointExists(batchNum common.BatchNum) (bool, error)
 	return l.db.CheckpointExists(batchNum)
 }
 
-// Reset performs a reset in the LocalStateDB. If fromSynchronizer is true, it
+// Reset performs a reset in the LocaStateDB. If fromSynchronizer is true, it
 // gets the state from LocalStateDB.synchronizerStateDB for the given batchNum.
 // If fromSynchronizer is false, get the state from LocalStateDB checkpoints.
 func (l *LocalStateDB) Reset(batchNum common.BatchNum, fromSynchronizer bool) error {

db/statedb/statedb_test.go

@@ -22,8 +22,7 @@ import (
 
 func newAccount(t *testing.T, i int) *common.Account {
 	var sk babyjub.PrivateKey
-	_, err := hex.Decode(sk[:],
+	_, err := hex.Decode(sk[:], []byte("0001020304050607080900010203040506070809000102030405060708090001"))
-		[]byte("0001020304050607080900010203040506070809000102030405060708090001"))
 	require.NoError(t, err)
 	pk := sk.Public()
 
@@ -372,8 +371,7 @@ func TestCheckpoints(t *testing.T) {
 	dirLocal, err := ioutil.TempDir("", "ldb")
 	require.NoError(t, err)
 	defer require.NoError(t, os.RemoveAll(dirLocal))
-	ldb, err := NewLocalStateDB(Config{Path: dirLocal, Keep: 128, Type: TypeBatchBuilder,
+	ldb, err := NewLocalStateDB(Config{Path: dirLocal, Keep: 128, Type: TypeBatchBuilder, NLevels: 32}, sdb)
-		NLevels: 32}, sdb)
 	require.NoError(t, err)
 
 	// get checkpoint 4 from sdb (StateDB) to ldb (LocalStateDB)
@@ -394,8 +392,7 @@ func TestCheckpoints(t *testing.T) {
 	dirLocal2, err := ioutil.TempDir("", "ldb2")
 	require.NoError(t, err)
 	defer require.NoError(t, os.RemoveAll(dirLocal2))
-	ldb2, err := NewLocalStateDB(Config{Path: dirLocal2, Keep: 128, Type: TypeBatchBuilder,
+	ldb2, err := NewLocalStateDB(Config{Path: dirLocal2, Keep: 128, Type: TypeBatchBuilder, NLevels: 32}, sdb)
-		NLevels: 32}, sdb)
 	require.NoError(t, err)
 
 	// get checkpoint 4 from sdb (StateDB) to ldb (LocalStateDB)
@@ -474,8 +471,7 @@ func TestCheckAccountsTreeTestVectors(t *testing.T) {
 
 	ay0 := new(big.Int).Sub(new(big.Int).Exp(big.NewInt(2), big.NewInt(253), nil), big.NewInt(1))
 	// test value from js version (compatibility-canary)
-	assert.Equal(t, "1fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
+	assert.Equal(t, "1fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", (hex.EncodeToString(ay0.Bytes())))
-		(hex.EncodeToString(ay0.Bytes())))
 	bjjPoint0Comp := babyjub.PackSignY(true, ay0)
 	bjj0 := babyjub.PublicKeyComp(bjjPoint0Comp)
 
@@ -534,9 +530,7 @@ func TestCheckAccountsTreeTestVectors(t *testing.T) {
 		require.NoError(t, err)
 	}
 	// root value generated by js version:
-	assert.Equal(t,
+	assert.Equal(t, "17298264051379321456969039521810887093935433569451713402227686942080129181291", sdb.MT.Root().BigInt().String())
-		"13174362770971232417413036794215823584762073355951212910715422236001731746065",
-		sdb.MT.Root().BigInt().String())
 }
 
 // TestListCheckpoints performs almost the same test than kvdb/kvdb_test.go

db/statedb/utils.go

@@ -18,8 +18,7 @@ func concatEthAddrTokenID(addr ethCommon.Address, tokenID common.TokenID) []byte
 	b = append(b[:], tokenID.Bytes()[:]...)
 	return b
 }
-func concatEthAddrBJJTokenID(addr ethCommon.Address, pk babyjub.PublicKeyComp,
+func concatEthAddrBJJTokenID(addr ethCommon.Address, pk babyjub.PublicKeyComp, tokenID common.TokenID) []byte {
-	tokenID common.TokenID) []byte {
 	pkComp := pk
 	var b []byte
 	b = append(b, addr.Bytes()...)
@@ -33,8 +32,7 @@ func concatEthAddrBJJTokenID(addr ethCommon.Address, pk babyjub.PublicKeyComp,
 // - key: EthAddr & BabyJubJub PublicKey Compressed, value: idx
 // If Idx already exist for the given EthAddr & BJJ, the remaining Idx will be
 // always the smallest one.
-func (s *StateDB) setIdxByEthAddrBJJ(idx common.Idx, addr ethCommon.Address,
+func (s *StateDB) setIdxByEthAddrBJJ(idx common.Idx, addr ethCommon.Address, pk babyjub.PublicKeyComp, tokenID common.TokenID) error {
-	pk babyjub.PublicKeyComp, tokenID common.TokenID) error {
 	oldIdx, err := s.GetIdxByEthAddrBJJ(addr, pk, tokenID)
 	if err == nil {
 		// EthAddr & BJJ already have an Idx
@@ -42,8 +40,7 @@ func (s *StateDB) setIdxByEthAddrBJJ(idx common.Idx, addr ethCommon.Address,
 		// if new idx is smaller, store the new one
 		// if new idx is bigger, don't store and return, as the used one will be the old
 		if idx >= oldIdx {
-			log.Debug("StateDB.setIdxByEthAddrBJJ: Idx not stored because there " +
+			log.Debug("StateDB.setIdxByEthAddrBJJ: Idx not stored because there already exist a smaller Idx for the given EthAddr & BJJ")
-				"already exist a smaller Idx for the given EthAddr & BJJ")
 			return nil
 		}
 	}
@@ -83,8 +80,7 @@ func (s *StateDB) setIdxByEthAddrBJJ(idx common.Idx, addr ethCommon.Address,
 // GetIdxByEthAddr returns the smallest Idx in the StateDB for the given
 // Ethereum Address. Will return common.Idx(0) and error in case that Idx is
 // not found in the StateDB.
-func (s *StateDB) GetIdxByEthAddr(addr ethCommon.Address, tokenID common.TokenID) (common.Idx,
+func (s *StateDB) GetIdxByEthAddr(addr ethCommon.Address, tokenID common.TokenID) (common.Idx, error) {
-	error) {
 	k := concatEthAddrTokenID(addr, tokenID)
 	b, err := s.db.DB().Get(append(PrefixKeyAddr, k...))
 	if err != nil {
@@ -120,22 +116,18 @@ func (s *StateDB) GetIdxByEthAddrBJJ(addr ethCommon.Address, pk babyjub.PublicKe
 			return common.Idx(0), tracerr.Wrap(ErrIdxNotFound)
 		} else if err != nil {
 			return common.Idx(0),
-				tracerr.Wrap(fmt.Errorf("GetIdxByEthAddrBJJ: %s: ToEthAddr: %s, ToBJJ: %s, TokenID: %d",
+				tracerr.Wrap(fmt.Errorf("GetIdxByEthAddrBJJ: %s: ToEthAddr: %s, ToBJJ: %s, TokenID: %d", ErrIdxNotFound, addr.Hex(), pk, tokenID))
-					ErrIdxNotFound, addr.Hex(), pk, tokenID))
 		}
 		idx, err := common.IdxFromBytes(b)
 		if err != nil {
 			return common.Idx(0),
-				tracerr.Wrap(fmt.Errorf("GetIdxByEthAddrBJJ: %s: ToEthAddr: %s, ToBJJ: %s, TokenID: %d",
+				tracerr.Wrap(fmt.Errorf("GetIdxByEthAddrBJJ: %s: ToEthAddr: %s, ToBJJ: %s, TokenID: %d", err, addr.Hex(), pk, tokenID))
-					err, addr.Hex(), pk, tokenID))
 		}
 		return idx, nil
 	}
 	// rest of cases (included case ToEthAddr==0) are not possible
 	return common.Idx(0),
-		tracerr.Wrap(
+		tracerr.Wrap(fmt.Errorf("GetIdxByEthAddrBJJ: Not found, %s: ToEthAddr: %s, ToBJJ: %s, TokenID: %d", ErrGetIdxNoCase, addr.Hex(), pk, tokenID))
-			fmt.Errorf("GetIdxByEthAddrBJJ: Not found, %s: ToEthAddr: %s, ToBJJ: %s, TokenID: %d",
-				ErrGetIdxNoCase, addr.Hex(), pk, tokenID))
 }
 
 // GetTokenIDsFromIdxs returns a map containing the common.TokenID with its
@@ -145,9 +137,7 @@ func (s *StateDB) GetTokenIDsFromIdxs(idxs []common.Idx) (map[common.TokenID]com
 	for i := 0; i < len(idxs); i++ {
 		a, err := s.GetAccount(idxs[i])
 		if err != nil {
-			return nil,
+			return nil, tracerr.Wrap(fmt.Errorf("GetTokenIDsFromIdxs error on GetAccount with Idx==%d: %s", idxs[i], err.Error()))
-				tracerr.Wrap(fmt.Errorf("GetTokenIDsFromIdxs error on GetAccount with Idx==%d: %s",
-					idxs[i], err.Error()))
 		}
 		m[a.TokenID] = idxs[i]
 	}

db/utils.go

@@ -93,8 +93,8 @@ type APIConnectionController struct {
 	timeout time.Duration
 }
 
-// NewAPIConnectionController initialize APIConnectionController
+// NewAPICnnectionController initialize APIConnectionController
-func NewAPIConnectionController(maxConnections int, timeout time.Duration) *APIConnectionController {
+func NewAPICnnectionController(maxConnections int, timeout time.Duration) *APIConnectionController {
 	return &APIConnectionController{
 		smphr:   semaphore.NewWeighted(int64(maxConnections)),
 		timeout: timeout,

eth/auction.go

@@ -70,8 +70,7 @@ type AuctionEventInitialize struct {
 }
 
 // AuctionVariables returns the AuctionVariables from the initialize event
-func (ei *AuctionEventInitialize) AuctionVariables(
+func (ei *AuctionEventInitialize) AuctionVariables(InitialMinimalBidding *big.Int) *common.AuctionVariables {
-	InitialMinimalBidding *big.Int) *common.AuctionVariables {
 	return &common.AuctionVariables{
 		EthBlockNum:        0,
 		DonationAddress:    ei.DonationAddress,
@@ -223,15 +222,12 @@ type AuctionInterface interface {
 	AuctionGetAllocationRatio() ([3]uint16, error)
 	AuctionSetDonationAddress(newDonationAddress ethCommon.Address) (*types.Transaction, error)
 	AuctionGetDonationAddress() (*ethCommon.Address, error)
-	AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address,
+	AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address, newBootCoordinatorURL string) (*types.Transaction, error)
-		newBootCoordinatorURL string) (*types.Transaction, error)
 	AuctionGetBootCoordinator() (*ethCommon.Address, error)
-	AuctionChangeDefaultSlotSetBid(slotSet int64,
+	AuctionChangeDefaultSlotSetBid(slotSet int64, newInitialMinBid *big.Int) (*types.Transaction, error)
-		newInitialMinBid *big.Int) (*types.Transaction, error)
 
 	// Coordinator Management
-	AuctionSetCoordinator(forger ethCommon.Address, coordinatorURL string) (*types.Transaction,
+	AuctionSetCoordinator(forger ethCommon.Address, coordinatorURL string) (*types.Transaction, error)
-		error)
 
 	// Slot Info
 	AuctionGetSlotNumber(blockNum int64) (int64, error)
@@ -241,8 +237,7 @@ type AuctionInterface interface {
 	AuctionGetSlotSet(slot int64) (*big.Int, error)
 
 	// Bidding
-	AuctionBid(amount *big.Int, slot int64, bidAmount *big.Int, deadline *big.Int) (
+	AuctionBid(amount *big.Int, slot int64, bidAmount *big.Int, deadline *big.Int) (tx *types.Transaction, err error)
-		tx *types.Transaction, err error)
 	AuctionMultiBid(amount *big.Int, startingSlot, endingSlot int64, slotSets [6]bool,
 		maxBid, minBid, deadline *big.Int) (tx *types.Transaction, err error)
 
@@ -280,10 +275,8 @@ type AuctionClient struct {
 }
 
 // NewAuctionClient creates a new AuctionClient.  `tokenAddress` is the address of the HEZ tokens.
-func NewAuctionClient(client *EthereumClient, address ethCommon.Address,
+func NewAuctionClient(client *EthereumClient, address ethCommon.Address, tokenHEZCfg TokenConfig) (*AuctionClient, error) {
-	tokenHEZCfg TokenConfig) (*AuctionClient, error) {
+	contractAbi, err := abi.JSON(strings.NewReader(string(HermezAuctionProtocol.HermezAuctionProtocolABI)))
-	contractAbi, err :=
-		abi.JSON(strings.NewReader(string(HermezAuctionProtocol.HermezAuctionProtocolABI)))
 	if err != nil {
 		return nil, tracerr.Wrap(err)
 	}
@@ -338,8 +331,7 @@ func (c *AuctionClient) AuctionGetSlotDeadline() (slotDeadline uint8, err error)
 }
 
 // AuctionSetOpenAuctionSlots is the interface to call the smart contract function
-func (c *AuctionClient) AuctionSetOpenAuctionSlots(
+func (c *AuctionClient) AuctionSetOpenAuctionSlots(newOpenAuctionSlots uint16) (tx *types.Transaction, err error) {
-	newOpenAuctionSlots uint16) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -363,8 +355,7 @@ func (c *AuctionClient) AuctionGetOpenAuctionSlots() (openAuctionSlots uint16, e
 }
 
 // AuctionSetClosedAuctionSlots is the interface to call the smart contract function
-func (c *AuctionClient) AuctionSetClosedAuctionSlots(
+func (c *AuctionClient) AuctionSetClosedAuctionSlots(newClosedAuctionSlots uint16) (tx *types.Transaction, err error) {
-	newClosedAuctionSlots uint16) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -388,8 +379,7 @@ func (c *AuctionClient) AuctionGetClosedAuctionSlots() (closedAuctionSlots uint1
 }
 
 // AuctionSetOutbidding is the interface to call the smart contract function
-func (c *AuctionClient) AuctionSetOutbidding(newOutbidding uint16) (tx *types.Transaction,
+func (c *AuctionClient) AuctionSetOutbidding(newOutbidding uint16) (tx *types.Transaction, err error) {
-	err error) {
 	if tx, err = c.client.CallAuth(
 		12500000, //nolint:gomnd
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -413,8 +403,7 @@ func (c *AuctionClient) AuctionGetOutbidding() (outbidding uint16, err error) {
 }
 
 // AuctionSetAllocationRatio is the interface to call the smart contract function
-func (c *AuctionClient) AuctionSetAllocationRatio(
+func (c *AuctionClient) AuctionSetAllocationRatio(newAllocationRatio [3]uint16) (tx *types.Transaction, err error) {
-	newAllocationRatio [3]uint16) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -438,8 +427,7 @@ func (c *AuctionClient) AuctionGetAllocationRatio() (allocationRation [3]uint16,
 }
 
 // AuctionSetDonationAddress is the interface to call the smart contract function
-func (c *AuctionClient) AuctionSetDonationAddress(
+func (c *AuctionClient) AuctionSetDonationAddress(newDonationAddress ethCommon.Address) (tx *types.Transaction, err error) {
-	newDonationAddress ethCommon.Address) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -452,8 +440,7 @@ func (c *AuctionClient) AuctionSetDonationAddress(
 }
 
 // AuctionGetDonationAddress is the interface to call the smart contract function
-func (c *AuctionClient) AuctionGetDonationAddress() (donationAddress *ethCommon.Address,
+func (c *AuctionClient) AuctionGetDonationAddress() (donationAddress *ethCommon.Address, err error) {
-	err error) {
 	var _donationAddress ethCommon.Address
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		_donationAddress, err = c.auction.GetDonationAddress(c.opts)
@@ -465,13 +452,11 @@ func (c *AuctionClient) AuctionGetDonationAddress() (donationAddress *ethCommon.
 }
 
 // AuctionSetBootCoordinator is the interface to call the smart contract function
-func (c *AuctionClient) AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address,
+func (c *AuctionClient) AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address, newBootCoordinatorURL string) (tx *types.Transaction, err error) {
-	newBootCoordinatorURL string) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
-			return c.auction.SetBootCoordinator(auth, newBootCoordinator,
+			return c.auction.SetBootCoordinator(auth, newBootCoordinator, newBootCoordinatorURL)
-				newBootCoordinatorURL)
 		},
 	); err != nil {
 		return nil, tracerr.Wrap(fmt.Errorf("Failed setting bootCoordinator: %w", err))
@@ -480,8 +465,7 @@ func (c *AuctionClient) AuctionSetBootCoordinator(newBootCoordinator ethCommon.A
 }
 
 // AuctionGetBootCoordinator is the interface to call the smart contract function
-func (c *AuctionClient) AuctionGetBootCoordinator() (bootCoordinator *ethCommon.Address,
+func (c *AuctionClient) AuctionGetBootCoordinator() (bootCoordinator *ethCommon.Address, err error) {
-	err error) {
 	var _bootCoordinator ethCommon.Address
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		_bootCoordinator, err = c.auction.GetBootCoordinator(c.opts)
@@ -493,8 +477,7 @@ func (c *AuctionClient) AuctionGetBootCoordinator() (bootCoordinator *ethCommon.
 }
 
 // AuctionChangeDefaultSlotSetBid is the interface to call the smart contract function
-func (c *AuctionClient) AuctionChangeDefaultSlotSetBid(slotSet int64,
+func (c *AuctionClient) AuctionChangeDefaultSlotSetBid(slotSet int64, newInitialMinBid *big.Int) (tx *types.Transaction, err error) {
-	newInitialMinBid *big.Int) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -508,8 +491,7 @@ func (c *AuctionClient) AuctionChangeDefaultSlotSetBid(slotSet int64,
 }
 
 // AuctionGetClaimableHEZ is the interface to call the smart contract function
-func (c *AuctionClient) AuctionGetClaimableHEZ(
+func (c *AuctionClient) AuctionGetClaimableHEZ(claimAddress ethCommon.Address) (claimableHEZ *big.Int, err error) {
-	claimAddress ethCommon.Address) (claimableHEZ *big.Int, err error) {
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		claimableHEZ, err = c.auction.GetClaimableHEZ(c.opts, claimAddress)
 		return tracerr.Wrap(err)
@@ -520,8 +502,7 @@ func (c *AuctionClient) AuctionGetClaimableHEZ(
 }
 
 // AuctionSetCoordinator is the interface to call the smart contract function
-func (c *AuctionClient) AuctionSetCoordinator(forger ethCommon.Address,
+func (c *AuctionClient) AuctionSetCoordinator(forger ethCommon.Address, coordinatorURL string) (tx *types.Transaction, err error) {
-	coordinatorURL string) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -570,8 +551,7 @@ func (c *AuctionClient) AuctionGetSlotSet(slot int64) (slotSet *big.Int, err err
 }
 
 // AuctionGetDefaultSlotSetBid is the interface to call the smart contract function
-func (c *AuctionClient) AuctionGetDefaultSlotSetBid(slotSet uint8) (minBidSlotSet *big.Int,
+func (c *AuctionClient) AuctionGetDefaultSlotSetBid(slotSet uint8) (minBidSlotSet *big.Int, err error) {
-	err error) {
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		minBidSlotSet, err = c.auction.GetDefaultSlotSetBid(c.opts, slotSet)
 		return tracerr.Wrap(err)
@@ -594,8 +574,7 @@ func (c *AuctionClient) AuctionGetSlotNumber(blockNum int64) (slot int64, err er
 }
 
 // AuctionBid is the interface to call the smart contract function
-func (c *AuctionClient) AuctionBid(amount *big.Int, slot int64, bidAmount *big.Int,
+func (c *AuctionClient) AuctionBid(amount *big.Int, slot int64, bidAmount *big.Int, deadline *big.Int) (tx *types.Transaction, err error) {
-	deadline *big.Int) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -607,8 +586,7 @@ func (c *AuctionClient) AuctionBid(amount *big.Int, slot int64, bidAmount *big.I
 			}
 			tokenName := c.tokenHEZCfg.Name
 			tokenAddr := c.tokenHEZCfg.Address
-			digest, _ := createPermitDigest(tokenAddr, owner, spender, c.chainID,
+			digest, _ := createPermitDigest(tokenAddr, owner, spender, c.chainID, amount, nonce, deadline, tokenName)
-				amount, nonce, deadline, tokenName)
 			signature, _ := c.client.ks.SignHash(*c.client.account, digest)
 			permit := createPermit(owner, spender, amount, deadline, digest, signature)
 			_slot := big.NewInt(slot)
@@ -621,8 +599,8 @@ func (c *AuctionClient) AuctionBid(amount *big.Int, slot int64, bidAmount *big.I
 }
 
 // AuctionMultiBid is the interface to call the smart contract function
-func (c *AuctionClient) AuctionMultiBid(amount *big.Int, startingSlot, endingSlot int64,
+func (c *AuctionClient) AuctionMultiBid(amount *big.Int, startingSlot, endingSlot int64, slotSets [6]bool,
-	slotSets [6]bool, maxBid, minBid, deadline *big.Int) (tx *types.Transaction, err error) {
+	maxBid, minBid, deadline *big.Int) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		1000000, //nolint:gomnd
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -635,14 +613,12 @@ func (c *AuctionClient) AuctionMultiBid(amount *big.Int, startingSlot, endingSlo
 			tokenName := c.tokenHEZCfg.Name
 			tokenAddr := c.tokenHEZCfg.Address
 
-			digest, _ := createPermitDigest(tokenAddr, owner, spender, c.chainID,
+			digest, _ := createPermitDigest(tokenAddr, owner, spender, c.chainID, amount, nonce, deadline, tokenName)
-				amount, nonce, deadline, tokenName)
 			signature, _ := c.client.ks.SignHash(*c.client.account, digest)
 			permit := createPermit(owner, spender, amount, deadline, digest, signature)
 			_startingSlot := big.NewInt(startingSlot)
 			_endingSlot := big.NewInt(endingSlot)
-			return c.auction.ProcessMultiBid(auth, amount, _startingSlot, _endingSlot,
+			return c.auction.ProcessMultiBid(auth, amount, _startingSlot, _endingSlot, slotSets, maxBid, minBid, permit)
-				slotSets, maxBid, minBid, permit)
 		},
 	); err != nil {
 		return nil, tracerr.Wrap(fmt.Errorf("Failed multibid: %w", err))
@@ -651,8 +627,7 @@ func (c *AuctionClient) AuctionMultiBid(amount *big.Int, startingSlot, endingSlo
 }
 
 // AuctionCanForge is the interface to call the smart contract function
-func (c *AuctionClient) AuctionCanForge(forger ethCommon.Address, blockNum int64) (canForge bool,
+func (c *AuctionClient) AuctionCanForge(forger ethCommon.Address, blockNum int64) (canForge bool, err error) {
-	err error) {
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		canForge, err = c.auction.CanForge(c.opts, forger, big.NewInt(blockNum))
 		return tracerr.Wrap(err)
@@ -705,8 +680,7 @@ func (c *AuctionClient) AuctionConstants() (auctionConstants *common.AuctionCons
 		if err != nil {
 			return tracerr.Wrap(err)
 		}
-		auctionConstants.InitialMinimalBidding, err =
+		auctionConstants.InitialMinimalBidding, err = c.auction.INITIALMINIMALBIDDING(c.opts)
-			c.auction.INITIALMINIMALBIDDING(c.opts)
 		if err != nil {
 			return tracerr.Wrap(err)
 		}
@@ -777,35 +751,21 @@ func (c *AuctionClient) AuctionVariables() (auctionVariables *common.AuctionVari
 }
 
 var (
-	logAuctionNewBid = crypto.Keccak256Hash([]byte(
+	logAuctionNewBid                = crypto.Keccak256Hash([]byte("NewBid(uint128,uint128,address)"))
-		"NewBid(uint128,uint128,address)"))
+	logAuctionNewSlotDeadline       = crypto.Keccak256Hash([]byte("NewSlotDeadline(uint8)"))
-	logAuctionNewSlotDeadline = crypto.Keccak256Hash([]byte(
+	logAuctionNewClosedAuctionSlots = crypto.Keccak256Hash([]byte("NewClosedAuctionSlots(uint16)"))
-		"NewSlotDeadline(uint8)"))
+	logAuctionNewOutbidding         = crypto.Keccak256Hash([]byte("NewOutbidding(uint16)"))
-	logAuctionNewClosedAuctionSlots = crypto.Keccak256Hash([]byte(
+	logAuctionNewDonationAddress    = crypto.Keccak256Hash([]byte("NewDonationAddress(address)"))
-		"NewClosedAuctionSlots(uint16)"))
+	logAuctionNewBootCoordinator    = crypto.Keccak256Hash([]byte("NewBootCoordinator(address,string)"))
-	logAuctionNewOutbidding = crypto.Keccak256Hash([]byte(
+	logAuctionNewOpenAuctionSlots   = crypto.Keccak256Hash([]byte("NewOpenAuctionSlots(uint16)"))
-		"NewOutbidding(uint16)"))
+	logAuctionNewAllocationRatio    = crypto.Keccak256Hash([]byte("NewAllocationRatio(uint16[3])"))
-	logAuctionNewDonationAddress = crypto.Keccak256Hash([]byte(
+	logAuctionSetCoordinator        = crypto.Keccak256Hash([]byte("SetCoordinator(address,address,string)"))
-		"NewDonationAddress(address)"))
+	logAuctionNewForgeAllocated     = crypto.Keccak256Hash([]byte("NewForgeAllocated(address,address,uint128,uint128,uint128,uint128)"))
-	logAuctionNewBootCoordinator = crypto.Keccak256Hash([]byte(
+	logAuctionNewDefaultSlotSetBid  = crypto.Keccak256Hash([]byte("NewDefaultSlotSetBid(uint128,uint128)"))
-		"NewBootCoordinator(address,string)"))
+	logAuctionNewForge              = crypto.Keccak256Hash([]byte("NewForge(address,uint128)"))
-	logAuctionNewOpenAuctionSlots = crypto.Keccak256Hash([]byte(
+	logAuctionHEZClaimed            = crypto.Keccak256Hash([]byte("HEZClaimed(address,uint128)"))
-		"NewOpenAuctionSlots(uint16)"))
+	logAuctionInitialize            = crypto.Keccak256Hash([]byte(
-	logAuctionNewAllocationRatio = crypto.Keccak256Hash([]byte(
+		"InitializeHermezAuctionProtocolEvent(address,address,string,uint16,uint8,uint16,uint16,uint16[3])"))
-		"NewAllocationRatio(uint16[3])"))
-	logAuctionSetCoordinator = crypto.Keccak256Hash([]byte(
-		"SetCoordinator(address,address,string)"))
-	logAuctionNewForgeAllocated = crypto.Keccak256Hash([]byte(
-		"NewForgeAllocated(address,address,uint128,uint128,uint128,uint128)"))
-	logAuctionNewDefaultSlotSetBid = crypto.Keccak256Hash([]byte(
-		"NewDefaultSlotSetBid(uint128,uint128)"))
-	logAuctionNewForge = crypto.Keccak256Hash([]byte(
-		"NewForge(address,uint128)"))
-	logAuctionHEZClaimed = crypto.Keccak256Hash([]byte(
-		"HEZClaimed(address,uint128)"))
-	logAuctionInitialize = crypto.Keccak256Hash([]byte(
-		"InitializeHermezAuctionProtocolEvent(address,address,string," +
-			"uint16,uint8,uint16,uint16,uint16[3])"))
 )
 
 // AuctionEventInit returns the initialize event with its corresponding block number
@@ -821,8 +781,7 @@ func (c *AuctionClient) AuctionEventInit() (*AuctionEventInitialize, int64, erro
 		return nil, 0, tracerr.Wrap(err)
 	}
 	if len(logs) != 1 {
-		return nil, 0,
+		return nil, 0, tracerr.Wrap(fmt.Errorf("no event of type InitializeHermezAuctionProtocolEvent found"))
-			tracerr.Wrap(fmt.Errorf("no event of type InitializeHermezAuctionProtocolEvent found"))
 	}
 	vLog := logs[0]
 	if vLog.Topics[0] != logAuctionInitialize {
@@ -870,8 +829,7 @@ func (c *AuctionClient) AuctionEventsByBlock(blockNum int64,
 
 	for _, vLog := range logs {
 		if blockHash != nil && vLog.BlockHash != *blockHash {
-			log.Errorw("Block hash mismatch", "expected", blockHash.String(), "got",
+			log.Errorw("Block hash mismatch", "expected", blockHash.String(), "got", vLog.BlockHash.String())
-				vLog.BlockHash.String())
 			return nil, tracerr.Wrap(ErrBlockHashMismatchEvent)
 		}
 		switch vLog.Topics[0] {
@@ -882,8 +840,7 @@ func (c *AuctionClient) AuctionEventsByBlock(blockNum int64,
 				Address   ethCommon.Address
 			}
 			var newBid AuctionEventNewBid
-			if err := c.contractAbi.UnpackIntoInterface(&auxNewBid, "NewBid",
+			if err := c.contractAbi.UnpackIntoInterface(&auxNewBid, "NewBid", vLog.Data); err != nil {
-				vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			newBid.BidAmount = auxNewBid.BidAmount
@@ -892,60 +849,48 @@ func (c *AuctionClient) AuctionEventsByBlock(blockNum int64,
 			auctionEvents.NewBid = append(auctionEvents.NewBid, newBid)
 		case logAuctionNewSlotDeadline:
 			var newSlotDeadline AuctionEventNewSlotDeadline
-			if err := c.contractAbi.UnpackIntoInterface(&newSlotDeadline,
+			if err := c.contractAbi.UnpackIntoInterface(&newSlotDeadline, "NewSlotDeadline", vLog.Data); err != nil {
-				"NewSlotDeadline", vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			auctionEvents.NewSlotDeadline = append(auctionEvents.NewSlotDeadline, newSlotDeadline)
 		case logAuctionNewClosedAuctionSlots:
 			var newClosedAuctionSlots AuctionEventNewClosedAuctionSlots
-			if err := c.contractAbi.UnpackIntoInterface(&newClosedAuctionSlots,
+			if err := c.contractAbi.UnpackIntoInterface(&newClosedAuctionSlots, "NewClosedAuctionSlots", vLog.Data); err != nil {
-				"NewClosedAuctionSlots", vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
-			auctionEvents.NewClosedAuctionSlots =
+			auctionEvents.NewClosedAuctionSlots = append(auctionEvents.NewClosedAuctionSlots, newClosedAuctionSlots)
-				append(auctionEvents.NewClosedAuctionSlots, newClosedAuctionSlots)
 		case logAuctionNewOutbidding:
 			var newOutbidding AuctionEventNewOutbidding
-			if err := c.contractAbi.UnpackIntoInterface(&newOutbidding, "NewOutbidding",
+			if err := c.contractAbi.UnpackIntoInterface(&newOutbidding, "NewOutbidding", vLog.Data); err != nil {
-				vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			auctionEvents.NewOutbidding = append(auctionEvents.NewOutbidding, newOutbidding)
 		case logAuctionNewDonationAddress:
 			var newDonationAddress AuctionEventNewDonationAddress
 			newDonationAddress.NewDonationAddress = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())
-			auctionEvents.NewDonationAddress = append(auctionEvents.NewDonationAddress,
+			auctionEvents.NewDonationAddress = append(auctionEvents.NewDonationAddress, newDonationAddress)
-				newDonationAddress)
 		case logAuctionNewBootCoordinator:
 			var newBootCoordinator AuctionEventNewBootCoordinator
-			if err := c.contractAbi.UnpackIntoInterface(&newBootCoordinator,
+			if err := c.contractAbi.UnpackIntoInterface(&newBootCoordinator, "NewBootCoordinator", vLog.Data); err != nil {
-				"NewBootCoordinator", vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			newBootCoordinator.NewBootCoordinator = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())
-			auctionEvents.NewBootCoordinator = append(auctionEvents.NewBootCoordinator,
+			auctionEvents.NewBootCoordinator = append(auctionEvents.NewBootCoordinator, newBootCoordinator)
-				newBootCoordinator)
 		case logAuctionNewOpenAuctionSlots:
 			var newOpenAuctionSlots AuctionEventNewOpenAuctionSlots
-			if err := c.contractAbi.UnpackIntoInterface(&newOpenAuctionSlots,
+			if err := c.contractAbi.UnpackIntoInterface(&newOpenAuctionSlots, "NewOpenAuctionSlots", vLog.Data); err != nil {
-				"NewOpenAuctionSlots", vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
-			auctionEvents.NewOpenAuctionSlots =
+			auctionEvents.NewOpenAuctionSlots = append(auctionEvents.NewOpenAuctionSlots, newOpenAuctionSlots)
-				append(auctionEvents.NewOpenAuctionSlots, newOpenAuctionSlots)
 		case logAuctionNewAllocationRatio:
 			var newAllocationRatio AuctionEventNewAllocationRatio
-			if err := c.contractAbi.UnpackIntoInterface(&newAllocationRatio,
+			if err := c.contractAbi.UnpackIntoInterface(&newAllocationRatio, "NewAllocationRatio", vLog.Data); err != nil {
-				"NewAllocationRatio", vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
-			auctionEvents.NewAllocationRatio = append(auctionEvents.NewAllocationRatio,
+			auctionEvents.NewAllocationRatio = append(auctionEvents.NewAllocationRatio, newAllocationRatio)
-				newAllocationRatio)
 		case logAuctionSetCoordinator:
 			var setCoordinator AuctionEventSetCoordinator
-			if err := c.contractAbi.UnpackIntoInterface(&setCoordinator,
+			if err := c.contractAbi.UnpackIntoInterface(&setCoordinator, "SetCoordinator", vLog.Data); err != nil {
-				"SetCoordinator", vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			setCoordinator.BidderAddress = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())
@@ -953,29 +898,25 @@ func (c *AuctionClient) AuctionEventsByBlock(blockNum int64,
 			auctionEvents.SetCoordinator = append(auctionEvents.SetCoordinator, setCoordinator)
 		case logAuctionNewForgeAllocated:
 			var newForgeAllocated AuctionEventNewForgeAllocated
-			if err := c.contractAbi.UnpackIntoInterface(&newForgeAllocated,
+			if err := c.contractAbi.UnpackIntoInterface(&newForgeAllocated, "NewForgeAllocated", vLog.Data); err != nil {
-				"NewForgeAllocated", vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			newForgeAllocated.Bidder = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())
 			newForgeAllocated.Forger = ethCommon.BytesToAddress(vLog.Topics[2].Bytes())
 			newForgeAllocated.SlotToForge = new(big.Int).SetBytes(vLog.Topics[3][:]).Int64()
-			auctionEvents.NewForgeAllocated = append(auctionEvents.NewForgeAllocated,
+			auctionEvents.NewForgeAllocated = append(auctionEvents.NewForgeAllocated, newForgeAllocated)
-				newForgeAllocated)
 		case logAuctionNewDefaultSlotSetBid:
 			var auxNewDefaultSlotSetBid struct {
 				SlotSet          *big.Int
 				NewInitialMinBid *big.Int
 			}
 			var newDefaultSlotSetBid AuctionEventNewDefaultSlotSetBid
-			if err := c.contractAbi.UnpackIntoInterface(&auxNewDefaultSlotSetBid,
+			if err := c.contractAbi.UnpackIntoInterface(&auxNewDefaultSlotSetBid, "NewDefaultSlotSetBid", vLog.Data); err != nil {
-				"NewDefaultSlotSetBid", vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			newDefaultSlotSetBid.NewInitialMinBid = auxNewDefaultSlotSetBid.NewInitialMinBid
 			newDefaultSlotSetBid.SlotSet = auxNewDefaultSlotSetBid.SlotSet.Int64()
-			auctionEvents.NewDefaultSlotSetBid =
+			auctionEvents.NewDefaultSlotSetBid = append(auctionEvents.NewDefaultSlotSetBid, newDefaultSlotSetBid)
-				append(auctionEvents.NewDefaultSlotSetBid, newDefaultSlotSetBid)
 		case logAuctionNewForge:
 			var newForge AuctionEventNewForge
 			newForge.Forger = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())
@@ -983,8 +924,7 @@ func (c *AuctionClient) AuctionEventsByBlock(blockNum int64,
 			auctionEvents.NewForge = append(auctionEvents.NewForge, newForge)
 		case logAuctionHEZClaimed:
 			var HEZClaimed AuctionEventHEZClaimed
-			if err := c.contractAbi.UnpackIntoInterface(&HEZClaimed, "HEZClaimed",
+			if err := c.contractAbi.UnpackIntoInterface(&HEZClaimed, "HEZClaimed", vLog.Data); err != nil {
-				vLog.Data); err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			HEZClaimed.Owner = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())

eth/auction_test.go

@@ -58,8 +58,7 @@ func TestAuctionConstants(t *testing.T) {
 func TestAuctionVariables(t *testing.T) {
 	INITMINBID := new(big.Int)
 	INITMINBID.SetString(minBidStr, 10)
-	defaultSlotSetBid := [6]*big.Int{INITMINBID, INITMINBID, INITMINBID, INITMINBID, INITMINBID,
+	defaultSlotSetBid := [6]*big.Int{INITMINBID, INITMINBID, INITMINBID, INITMINBID, INITMINBID, INITMINBID}
-		INITMINBID}
 
 	auctionVariables, err := auctionClientTest.AuctionVariables()
 	require.Nil(t, err)
@@ -133,8 +132,7 @@ func TestAuctionSetClosedAuctionSlots(t *testing.T) {
 	require.Nil(t, err)
 	auctionEvents, err := auctionClientTest.AuctionEventsByBlock(currentBlockNum, nil)
 	require.Nil(t, err)
-	assert.Equal(t, newClosedAuctionSlots,
+	assert.Equal(t, newClosedAuctionSlots, auctionEvents.NewClosedAuctionSlots[0].NewClosedAuctionSlots)
-		auctionEvents.NewClosedAuctionSlots[0].NewClosedAuctionSlots)
 	_, err = auctionClientTest.AuctionSetClosedAuctionSlots(closedAuctionSlots)
 	require.Nil(t, err)
 }
@@ -230,8 +228,7 @@ func TestAuctionSetBootCoordinator(t *testing.T) {
 	require.Nil(t, err)
 	assert.Equal(t, newBootCoordinator, auctionEvents.NewBootCoordinator[0].NewBootCoordinator)
 	assert.Equal(t, newBootCoordinatorURL, auctionEvents.NewBootCoordinator[0].NewBootCoordinatorURL)
-	_, err = auctionClientTest.AuctionSetBootCoordinator(bootCoordinatorAddressConst,
+	_, err = auctionClientTest.AuctionSetBootCoordinator(bootCoordinatorAddressConst, bootCoordinatorURL)
-		bootCoordinatorURL)
 	require.Nil(t, err)
 }
 
@@ -345,8 +342,7 @@ func TestAuctionMultiBid(t *testing.T) {
 	budget := new(big.Int)
 	budget.SetString("45200000000000000000", 10)
 	bidderAddress := governanceAddressConst
-	_, err = auctionClientTest.AuctionMultiBid(budget, currentSlot+4, currentSlot+10, slotSet,
+	_, err = auctionClientTest.AuctionMultiBid(budget, currentSlot+4, currentSlot+10, slotSet, maxBid, minBid, deadline)
-		maxBid, minBid, deadline)
 	require.Nil(t, err)
 	currentBlockNum, err := auctionClientTest.client.EthLastBlock()
 	require.Nil(t, err)
@@ -387,8 +383,7 @@ func TestAuctionClaimHEZ(t *testing.T) {
 }
 
 func TestAuctionForge(t *testing.T) {
-	auctionClientTestHermez, err := NewAuctionClient(ethereumClientHermez,
+	auctionClientTestHermez, err := NewAuctionClient(ethereumClientHermez, auctionTestAddressConst, tokenHEZ)
-		auctionTestAddressConst, tokenHEZ)
 	require.Nil(t, err)
 	slotConst := 4
 	blockNum := int64(int(blocksPerSlot)*slotConst + int(genesisBlock))

eth/client.go

@@ -64,19 +64,16 @@ type ClientConfig struct {
 }
 
 // NewClient creates a new Client to interact with Ethereum and the Hermez smart contracts.
-func NewClient(client *ethclient.Client, account *accounts.Account, ks *ethKeystore.KeyStore,
+func NewClient(client *ethclient.Client, account *accounts.Account, ks *ethKeystore.KeyStore, cfg *ClientConfig) (*Client, error) {
-	cfg *ClientConfig) (*Client, error) {
 	ethereumClient, err := NewEthereumClient(client, account, ks, &cfg.Ethereum)
 	if err != nil {
 		return nil, tracerr.Wrap(err)
 	}
-	auctionClient, err := NewAuctionClient(ethereumClient, cfg.Auction.Address,
+	auctionClient, err := NewAuctionClient(ethereumClient, cfg.Auction.Address, cfg.Auction.TokenHEZ)
-		cfg.Auction.TokenHEZ)
 	if err != nil {
 		return nil, tracerr.Wrap(err)
 	}
-	rollupClient, err := NewRollupClient(ethereumClient, cfg.Rollup.Address,
+	rollupClient, err := NewRollupClient(ethereumClient, cfg.Rollup.Address, cfg.Auction.TokenHEZ)
-		cfg.Auction.TokenHEZ)
 	if err != nil {
 		return nil, tracerr.Wrap(err)
 	}

eth/ethereum.go

@@ -64,8 +64,7 @@ type EthereumConfig struct {
 	GasPriceDiv  uint64
 }
 
-// EthereumClient is an ethereum client to call Smart Contract methods and check blockchain
+// EthereumClient is an ethereum client to call Smart Contract methods and check blockchain information.
-// information.
 type EthereumClient struct {
 	client  *ethclient.Client
 	chainID *big.Int
@@ -77,8 +76,7 @@ type EthereumClient struct {
 
 // NewEthereumClient creates a EthereumClient instance.  The account is not mandatory (it can
 // be nil).  If the account is nil, CallAuth will fail with ErrAccountNil.
-func NewEthereumClient(client *ethclient.Client, account *accounts.Account,
+func NewEthereumClient(client *ethclient.Client, account *accounts.Account, ks *ethKeystore.KeyStore, config *EthereumConfig) (*EthereumClient, error) {
-	ks *ethKeystore.KeyStore, config *EthereumConfig) (*EthereumClient, error) {
 	if config == nil {
 		config = &EthereumConfig{
 			CallGasLimit: defaultCallGasLimit,
@@ -168,8 +166,7 @@ func (c *EthereumClient) NewAuth() (*bind.TransactOpts, error) {
 // This call requires a valid account with Ether that can be spend during the
 // call.
 func (c *EthereumClient) CallAuth(gasLimit uint64,
-	fn func(*ethclient.Client, *bind.TransactOpts) (*types.Transaction, error)) (*types.Transaction,
+	fn func(*ethclient.Client, *bind.TransactOpts) (*types.Transaction, error)) (*types.Transaction, error) {
-	error) {
 	if c.account == nil {
 		return nil, tracerr.Wrap(ErrAccountNil)
 	}
@@ -215,8 +212,7 @@ func (c *EthereumClient) Call(fn func(*ethclient.Client) error) error {
 }
 
 // EthTransactionReceipt returns the transaction receipt of the given txHash
-func (c *EthereumClient) EthTransactionReceipt(ctx context.Context,
+func (c *EthereumClient) EthTransactionReceipt(ctx context.Context, txHash ethCommon.Hash) (*types.Receipt, error) {
-	txHash ethCommon.Hash) (*types.Receipt, error) {
 	return c.client.TransactionReceipt(ctx, txHash)
 }
 
@@ -232,15 +228,13 @@ func (c *EthereumClient) EthLastBlock() (int64, error) {
 }
 
 // EthHeaderByNumber internally calls ethclient.Client HeaderByNumber
-// func (c *EthereumClient) EthHeaderByNumber(ctx context.Context, number *big.Int) (*types.Header,
+// func (c *EthereumClient) EthHeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) {
-// 	error) {
 // 	return c.client.HeaderByNumber(ctx, number)
 // }
 
 // EthBlockByNumber internally calls ethclient.Client BlockByNumber and returns
 // *common.Block.  If number == -1, the latests known block is returned.
-func (c *EthereumClient) EthBlockByNumber(ctx context.Context, number int64) (*common.Block,
+func (c *EthereumClient) EthBlockByNumber(ctx context.Context, number int64) (*common.Block, error) {
-	error) {
 	blockNum := big.NewInt(number)
 	if number == -1 {
 		blockNum = nil

eth/helpers.go

@@ -14,8 +14,7 @@ import (
 func addBlock(url string) {
 	method := "POST"
 
-	payload := strings.NewReader(
+	payload := strings.NewReader("{\n    \"jsonrpc\":\"2.0\",\n    \"method\":\"evm_mine\",\n    \"params\":[],\n    \"id\":1\n}")
-		"{\n    \"jsonrpc\":\"2.0\",\n    \"method\":\"evm_mine\",\n    \"params\":[],\n    \"id\":1\n}")
 
 	client := &http.Client{}
 	req, err := http.NewRequest(method, url, payload)
@@ -46,9 +45,7 @@ func addTime(seconds float64, url string) {
 	secondsStr := strconv.FormatFloat(seconds, 'E', -1, 32)
 
 	method := "POST"
-	payload := strings.NewReader(
+	payload := strings.NewReader("{\n    \"jsonrpc\":\"2.0\",\n    \"method\":\"evm_increaseTime\",\n    \"params\":[" + secondsStr + "],\n    \"id\":1\n}")
-		"{\n    \"jsonrpc\":\"2.0\",\n    \"method\":\"evm_increaseTime\",\n    \"params\":[" +
-			secondsStr + "],\n    \"id\":1\n}")
 
 	client := &http.Client{}
 	req, err := http.NewRequest(method, url, payload)
@@ -69,16 +66,13 @@ func addTime(seconds float64, url string) {
 	}()
 }
 
-func createPermitDigest(tokenAddr, owner, spender ethCommon.Address, chainID, value, nonce,
+func createPermitDigest(tokenAddr, owner, spender ethCommon.Address, chainID, value, nonce, deadline *big.Int, tokenName string) ([]byte, error) {
-	deadline *big.Int, tokenName string) ([]byte, error) {
 	// NOTE: We ignore hash.Write errors because we are writing to a memory
 	// buffer and don't expect any errors to occur.
-	abiPermit :=
+	abiPermit := []byte("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)")
-		[]byte("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)")
 	hashPermit := sha3.NewLegacyKeccak256()
 	hashPermit.Write(abiPermit) //nolint:errcheck,gosec
-	abiEIP712Domain :=
+	abiEIP712Domain := []byte("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)")
-		[]byte("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)")
 	hashEIP712Domain := sha3.NewLegacyKeccak256()
 	hashEIP712Domain.Write(abiEIP712Domain) //nolint:errcheck,gosec
 	var encodeBytes []byte
@@ -130,8 +124,7 @@ func createPermitDigest(tokenAddr, owner, spender ethCommon.Address, chainID, va
 	return hashBytes2.Sum(nil), nil
 }
 
-func createPermit(owner, spender ethCommon.Address, amount, deadline *big.Int, digest,
+func createPermit(owner, spender ethCommon.Address, amount, deadline *big.Int, digest, signature []byte) []byte {
-	signature []byte) []byte {
 	r := signature[0:32]
 	s := signature[32:64]
 	v := signature[64] + byte(27) //nolint:gomnd

eth/main_test.go

@@ -26,8 +26,7 @@ var (
 	mnemonic         = "explain tackle mirror kit van hammer degree position ginger unfair soup bonus"
 )
 
-func genAcc(w *hdwallet.Wallet, ks *keystore.KeyStore, i int) (*accounts.Account,
+func genAcc(w *hdwallet.Wallet, ks *keystore.KeyStore, i int) (*accounts.Account, ethCommon.Address) {
-	ethCommon.Address) {
 	path := hdwallet.MustParseDerivationPath(fmt.Sprintf("m/44'/60'/0'/0/%d", i))
 	account, err := w.Derive(path, false)
 	if err != nil {
@@ -112,9 +111,7 @@ func getEnvVariables() {
 	if err != nil {
 		log.Fatal(errEnvVar)
 	}
-	if auctionAddressStr == "" || auctionTestAddressStr == "" || tokenHEZAddressStr == "" ||
+	if auctionAddressStr == "" || auctionTestAddressStr == "" || tokenHEZAddressStr == "" || hermezRollupAddressStr == "" || wdelayerAddressStr == "" || wdelayerTestAddressStr == "" || genesisBlockEnv == "" {
-		hermezRollupAddressStr == "" || wdelayerAddressStr == "" || wdelayerTestAddressStr == "" ||
-		genesisBlockEnv == "" {
 		log.Fatal(errEnvVar)
 	}
 
@@ -192,8 +189,7 @@ func TestMain(m *testing.M) {
 			log.Fatal(err)
 		}
 
-		ethereumClientEmergencyCouncil, err = NewEthereumClient(ethClient,
+		ethereumClientEmergencyCouncil, err = NewEthereumClient(ethClient, emergencyCouncilAccount, ks, nil)
-			emergencyCouncilAccount, ks, nil)
 		if err != nil {
 			log.Fatal(err)
 		}

eth/rollup.go

@@ -243,20 +243,13 @@ type RollupInterface interface {
 	// Public Functions
 
 	RollupForgeBatch(*RollupForgeBatchArgs, *bind.TransactOpts) (*types.Transaction, error)
-	RollupAddToken(tokenAddress ethCommon.Address, feeAddToken,
+	RollupAddToken(tokenAddress ethCommon.Address, feeAddToken, deadline *big.Int) (*types.Transaction, error)
-		deadline *big.Int) (*types.Transaction, error)
 
-	RollupWithdrawMerkleProof(babyPubKey babyjub.PublicKeyComp, tokenID uint32, numExitRoot,
+	RollupWithdrawMerkleProof(babyPubKey babyjub.PublicKeyComp, tokenID uint32, numExitRoot, idx int64, amount *big.Int, siblings []*big.Int, instantWithdraw bool) (*types.Transaction, error)
-		idx int64, amount *big.Int, siblings []*big.Int, instantWithdraw bool) (*types.Transaction,
+	RollupWithdrawCircuit(proofA, proofC [2]*big.Int, proofB [2][2]*big.Int, tokenID uint32, numExitRoot, idx int64, amount *big.Int, instantWithdraw bool) (*types.Transaction, error)
-		error)
-	RollupWithdrawCircuit(proofA, proofC [2]*big.Int, proofB [2][2]*big.Int, tokenID uint32,
-		numExitRoot, idx int64, amount *big.Int, instantWithdraw bool) (*types.Transaction, error)
 
-	RollupL1UserTxERC20ETH(fromBJJ babyjub.PublicKeyComp, fromIdx int64, depositAmount *big.Int,
+	RollupL1UserTxERC20ETH(fromBJJ babyjub.PublicKeyComp, fromIdx int64, depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64) (*types.Transaction, error)
-		amount *big.Int, tokenID uint32, toIdx int64) (*types.Transaction, error)
+	RollupL1UserTxERC20Permit(fromBJJ babyjub.PublicKeyComp, fromIdx int64, depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64, deadline *big.Int) (tx *types.Transaction, err error)
-	RollupL1UserTxERC20Permit(fromBJJ babyjub.PublicKeyComp, fromIdx int64,
-		depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64,
-		deadline *big.Int) (tx *types.Transaction, err error)
 
 	// Governance Public Functions
 	RollupUpdateForgeL1L2BatchTimeout(newForgeL1L2BatchTimeout int64) (*types.Transaction, error)
@@ -294,8 +287,7 @@ type RollupClient struct {
 }
 
 // NewRollupClient creates a new RollupClient
-func NewRollupClient(client *EthereumClient, address ethCommon.Address,
+func NewRollupClient(client *EthereumClient, address ethCommon.Address, tokenHEZCfg TokenConfig) (*RollupClient, error) {
-	tokenHEZCfg TokenConfig) (*RollupClient, error) {
 	contractAbi, err := abi.JSON(strings.NewReader(string(Hermez.HermezABI)))
 	if err != nil {
 		return nil, tracerr.Wrap(err)
@@ -331,8 +323,7 @@ func NewRollupClient(client *EthereumClient, address ethCommon.Address,
 }
 
 // RollupForgeBatch is the interface to call the smart contract function
-func (c *RollupClient) RollupForgeBatch(args *RollupForgeBatchArgs,
+func (c *RollupClient) RollupForgeBatch(args *RollupForgeBatchArgs, auth *bind.TransactOpts) (tx *types.Transaction, err error) {
-	auth *bind.TransactOpts) (tx *types.Transaction, err error) {
 	if auth == nil {
 		auth, err = c.client.NewAuth()
 		if err != nil {
@@ -410,8 +401,7 @@ func (c *RollupClient) RollupForgeBatch(args *RollupForgeBatchArgs,
 // RollupAddToken is the interface to call the smart contract function.
 // `feeAddToken` is the amount of HEZ tokens that will be paid to add the
 // token.  `feeAddToken` must match the public value of the smart contract.
-func (c *RollupClient) RollupAddToken(tokenAddress ethCommon.Address, feeAddToken,
+func (c *RollupClient) RollupAddToken(tokenAddress ethCommon.Address, feeAddToken, deadline *big.Int) (tx *types.Transaction, err error) {
-	deadline *big.Int) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -423,11 +413,9 @@ func (c *RollupClient) RollupAddToken(tokenAddress ethCommon.Address, feeAddToke
 			}
 			tokenName := c.tokenHEZCfg.Name
 			tokenAddr := c.tokenHEZCfg.Address
-			digest, _ := createPermitDigest(tokenAddr, owner, spender, c.chainID,
+			digest, _ := createPermitDigest(tokenAddr, owner, spender, c.chainID, feeAddToken, nonce, deadline, tokenName)
-				feeAddToken, nonce, deadline, tokenName)
 			signature, _ := c.client.ks.SignHash(*c.client.account, digest)
-			permit := createPermit(owner, spender, feeAddToken, deadline, digest,
+			permit := createPermit(owner, spender, feeAddToken, deadline, digest, signature)
-				signature)
 
 			return c.hermez.AddToken(auth, tokenAddress, permit)
 		},
@@ -438,9 +426,7 @@ func (c *RollupClient) RollupAddToken(tokenAddress ethCommon.Address, feeAddToke
 }
 
 // RollupWithdrawMerkleProof is the interface to call the smart contract function
-func (c *RollupClient) RollupWithdrawMerkleProof(fromBJJ babyjub.PublicKeyComp, tokenID uint32,
+func (c *RollupClient) RollupWithdrawMerkleProof(fromBJJ babyjub.PublicKeyComp, tokenID uint32, numExitRoot, idx int64, amount *big.Int, siblings []*big.Int, instantWithdraw bool) (tx *types.Transaction, err error) {
-	numExitRoot, idx int64, amount *big.Int, siblings []*big.Int,
-	instantWithdraw bool) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -448,8 +434,7 @@ func (c *RollupClient) RollupWithdrawMerkleProof(fromBJJ babyjub.PublicKeyComp,
 			babyPubKey := new(big.Int).SetBytes(pkCompB)
 			numExitRootB := uint32(numExitRoot)
 			idxBig := big.NewInt(idx)
-			return c.hermez.WithdrawMerkleProof(auth, tokenID, amount, babyPubKey,
+			return c.hermez.WithdrawMerkleProof(auth, tokenID, amount, babyPubKey, numExitRootB, siblings, idxBig, instantWithdraw)
-				numExitRootB, siblings, idxBig, instantWithdraw)
 		},
 	); err != nil {
 		return nil, tracerr.Wrap(fmt.Errorf("Failed update WithdrawMerkleProof: %w", err))
@@ -458,17 +443,13 @@ func (c *RollupClient) RollupWithdrawMerkleProof(fromBJJ babyjub.PublicKeyComp,
 }
 
 // RollupWithdrawCircuit is the interface to call the smart contract function
-func (c *RollupClient) RollupWithdrawCircuit(proofA, proofC [2]*big.Int, proofB [2][2]*big.Int,
+func (c *RollupClient) RollupWithdrawCircuit(proofA, proofC [2]*big.Int, proofB [2][2]*big.Int, tokenID uint32, numExitRoot, idx int64, amount *big.Int, instantWithdraw bool) (*types.Transaction, error) {
-	tokenID uint32, numExitRoot, idx int64, amount *big.Int, instantWithdraw bool) (*types.Transaction,
-	error) {
 	log.Error("TODO")
 	return nil, tracerr.Wrap(errTODO)
 }
 
 // RollupL1UserTxERC20ETH is the interface to call the smart contract function
-func (c *RollupClient) RollupL1UserTxERC20ETH(fromBJJ babyjub.PublicKeyComp, fromIdx int64,
+func (c *RollupClient) RollupL1UserTxERC20ETH(fromBJJ babyjub.PublicKeyComp, fromIdx int64, depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64) (tx *types.Transaction, err error) {
-	depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64) (tx *types.Transaction,
-	err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -503,9 +484,7 @@ func (c *RollupClient) RollupL1UserTxERC20ETH(fromBJJ babyjub.PublicKeyComp, fro
 }
 
 // RollupL1UserTxERC20Permit is the interface to call the smart contract function
-func (c *RollupClient) RollupL1UserTxERC20Permit(fromBJJ babyjub.PublicKeyComp, fromIdx int64,
+func (c *RollupClient) RollupL1UserTxERC20Permit(fromBJJ babyjub.PublicKeyComp, fromIdx int64, depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64, deadline *big.Int) (tx *types.Transaction, err error) {
-	depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64,
-	deadline *big.Int) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -537,12 +516,11 @@ func (c *RollupClient) RollupL1UserTxERC20Permit(fromBJJ babyjub.PublicKeyComp,
 			}
 			tokenName := c.tokenHEZCfg.Name
 			tokenAddr := c.tokenHEZCfg.Address
-			digest, _ := createPermitDigest(tokenAddr, owner, spender, c.chainID,
+			digest, _ := createPermitDigest(tokenAddr, owner, spender, c.chainID, amount, nonce, deadline, tokenName)
-				amount, nonce, deadline, tokenName)
 			signature, _ := c.client.ks.SignHash(*c.client.account, digest)
 			permit := createPermit(owner, spender, amount, deadline, digest, signature)
-			return c.hermez.AddL1Transaction(auth, babyPubKey, fromIdxBig,
+			return c.hermez.AddL1Transaction(auth, babyPubKey, fromIdxBig, uint16(depositAmountF),
-				uint16(depositAmountF), uint16(amountF), tokenID, toIdxBig, permit)
+				uint16(amountF), tokenID, toIdxBig, permit)
 		},
 	); err != nil {
 		return nil, tracerr.Wrap(fmt.Errorf("Failed add L1 Tx ERC20Permit: %w", err))
@@ -574,13 +552,11 @@ func (c *RollupClient) RollupLastForgedBatch() (lastForgedBatch int64, err error
 }
 
 // RollupUpdateForgeL1L2BatchTimeout is the interface to call the smart contract function
-func (c *RollupClient) RollupUpdateForgeL1L2BatchTimeout(
+func (c *RollupClient) RollupUpdateForgeL1L2BatchTimeout(newForgeL1L2BatchTimeout int64) (tx *types.Transaction, err error) {
-	newForgeL1L2BatchTimeout int64) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
-			return c.hermez.UpdateForgeL1L2BatchTimeout(auth,
+			return c.hermez.UpdateForgeL1L2BatchTimeout(auth, uint8(newForgeL1L2BatchTimeout))
-				uint8(newForgeL1L2BatchTimeout))
 		},
 	); err != nil {
 		return nil, tracerr.Wrap(fmt.Errorf("Failed update ForgeL1L2BatchTimeout: %w", err))
@@ -589,8 +565,7 @@ func (c *RollupClient) RollupUpdateForgeL1L2BatchTimeout(
 }
 
 // RollupUpdateFeeAddToken is the interface to call the smart contract function
-func (c *RollupClient) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (tx *types.Transaction,
+func (c *RollupClient) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (tx *types.Transaction, err error) {
-	err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -625,8 +600,7 @@ func (c *RollupClient) RollupUpdateBucketsParameters(
 }
 
 // RollupUpdateTokenExchange is the interface to call the smart contract function
-func (c *RollupClient) RollupUpdateTokenExchange(addressArray []ethCommon.Address,
+func (c *RollupClient) RollupUpdateTokenExchange(addressArray []ethCommon.Address, valueArray []uint64) (tx *types.Transaction, err error) {
-	valueArray []uint64) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -639,8 +613,7 @@ func (c *RollupClient) RollupUpdateTokenExchange(addressArray []ethCommon.Addres
 }
 
 // RollupUpdateWithdrawalDelay is the interface to call the smart contract function
-func (c *RollupClient) RollupUpdateWithdrawalDelay(newWithdrawalDelay int64) (tx *types.Transaction,
+func (c *RollupClient) RollupUpdateWithdrawalDelay(newWithdrawalDelay int64) (tx *types.Transaction, err error) {
-	err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -666,8 +639,7 @@ func (c *RollupClient) RollupSafeMode() (tx *types.Transaction, err error) {
 }
 
 // RollupInstantWithdrawalViewer is the interface to call the smart contract function
-func (c *RollupClient) RollupInstantWithdrawalViewer(tokenAddress ethCommon.Address,
+func (c *RollupClient) RollupInstantWithdrawalViewer(tokenAddress ethCommon.Address, amount *big.Int) (instantAllowed bool, err error) {
-	amount *big.Int) (instantAllowed bool, err error) {
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		instantAllowed, err = c.hermez.InstantWithdrawalViewer(c.opts, tokenAddress, amount)
 		return tracerr.Wrap(err)
@@ -702,8 +674,7 @@ func (c *RollupClient) RollupConstants() (rollupConstants *common.RollupConstant
 			}
 			newRollupVerifier.MaxTx = rollupVerifier.MaxTx.Int64()
 			newRollupVerifier.NLevels = rollupVerifier.NLevels.Int64()
-			rollupConstants.Verifiers = append(rollupConstants.Verifiers,
+			rollupConstants.Verifiers = append(rollupConstants.Verifiers, newRollupVerifier)
-				newRollupVerifier)
 		}
 		rollupConstants.HermezAuctionContract, err = c.hermez.HermezAuctionContract(c.opts)
 		if err != nil {
@@ -722,30 +693,19 @@ func (c *RollupClient) RollupConstants() (rollupConstants *common.RollupConstant
 }
 
 var (
-	logHermezL1UserTxEvent = crypto.Keccak256Hash([]byte(
+	logHermezL1UserTxEvent               = crypto.Keccak256Hash([]byte("L1UserTxEvent(uint32,uint8,bytes)"))
-		"L1UserTxEvent(uint32,uint8,bytes)"))
+	logHermezAddToken                    = crypto.Keccak256Hash([]byte("AddToken(address,uint32)"))
-	logHermezAddToken = crypto.Keccak256Hash([]byte(
+	logHermezForgeBatch                  = crypto.Keccak256Hash([]byte("ForgeBatch(uint32,uint16)"))
-		"AddToken(address,uint32)"))
+	logHermezUpdateForgeL1L2BatchTimeout = crypto.Keccak256Hash([]byte("UpdateForgeL1L2BatchTimeout(uint8)"))
-	logHermezForgeBatch = crypto.Keccak256Hash([]byte(
+	logHermezUpdateFeeAddToken           = crypto.Keccak256Hash([]byte("UpdateFeeAddToken(uint256)"))
-		"ForgeBatch(uint32,uint16)"))
+	logHermezWithdrawEvent               = crypto.Keccak256Hash([]byte("WithdrawEvent(uint48,uint32,bool)"))
-	logHermezUpdateForgeL1L2BatchTimeout = crypto.Keccak256Hash([]byte(
+	logHermezUpdateBucketWithdraw        = crypto.Keccak256Hash([]byte("UpdateBucketWithdraw(uint8,uint256,uint256)"))
-		"UpdateForgeL1L2BatchTimeout(uint8)"))
+	logHermezUpdateWithdrawalDelay       = crypto.Keccak256Hash([]byte("UpdateWithdrawalDelay(uint64)"))
-	logHermezUpdateFeeAddToken = crypto.Keccak256Hash([]byte(
+	logHermezUpdateBucketsParameters     = crypto.Keccak256Hash([]byte("UpdateBucketsParameters(uint256[4][" +
-		"UpdateFeeAddToken(uint256)"))
+		strconv.Itoa(common.RollupConstNumBuckets) + "])"))
-	logHermezWithdrawEvent = crypto.Keccak256Hash([]byte(
+	logHermezUpdateTokenExchange = crypto.Keccak256Hash([]byte("UpdateTokenExchange(address[],uint64[])"))
-		"WithdrawEvent(uint48,uint32,bool)"))
+	logHermezSafeMode            = crypto.Keccak256Hash([]byte("SafeMode()"))
-	logHermezUpdateBucketWithdraw = crypto.Keccak256Hash([]byte(
+	logHermezInitialize          = crypto.Keccak256Hash([]byte("InitializeHermezEvent(uint8,uint256,uint64)"))
-		"UpdateBucketWithdraw(uint8,uint256,uint256)"))
-	logHermezUpdateWithdrawalDelay = crypto.Keccak256Hash([]byte(
-		"UpdateWithdrawalDelay(uint64)"))
-	logHermezUpdateBucketsParameters = crypto.Keccak256Hash([]byte(
-		"UpdateBucketsParameters(uint256[4][" + strconv.Itoa(common.RollupConstNumBuckets) + "])"))
-	logHermezUpdateTokenExchange = crypto.Keccak256Hash([]byte(
-		"UpdateTokenExchange(address[],uint64[])"))
-	logHermezSafeMode = crypto.Keccak256Hash([]byte(
-		"SafeMode()"))
-	logHermezInitialize = crypto.Keccak256Hash([]byte(
-		"InitializeHermezEvent(uint8,uint256,uint64)"))
 )
 
 // RollupEventInit returns the initialize event with its corresponding block number
@@ -769,8 +729,7 @@ func (c *RollupClient) RollupEventInit() (*RollupEventInitialize, int64, error)
 	}
 
 	var rollupInit RollupEventInitialize
-	if err := c.contractAbi.UnpackIntoInterface(&rollupInit, "InitializeHermezEvent",
+	if err := c.contractAbi.UnpackIntoInterface(&rollupInit, "InitializeHermezEvent", vLog.Data); err != nil {
-		vLog.Data); err != nil {
 		return nil, 0, tracerr.Wrap(err)
 	}
 	return &rollupInit, int64(vLog.BlockNumber), tracerr.Wrap(err)
@@ -851,8 +810,7 @@ func (c *RollupClient) RollupEventsByBlock(blockNum int64,
 			var updateForgeL1L2BatchTimeout struct {
 				NewForgeL1L2BatchTimeout uint8
 			}
-			err := c.contractAbi.UnpackIntoInterface(&updateForgeL1L2BatchTimeout,
+			err := c.contractAbi.UnpackIntoInterface(&updateForgeL1L2BatchTimeout, "UpdateForgeL1L2BatchTimeout", vLog.Data)
-				"UpdateForgeL1L2BatchTimeout", vLog.Data)
 			if err != nil {
 				return nil, tracerr.Wrap(err)
 			}
@@ -880,16 +838,14 @@ func (c *RollupClient) RollupEventsByBlock(blockNum int64,
 		case logHermezUpdateBucketWithdraw:
 			var updateBucketWithdrawAux rollupEventUpdateBucketWithdrawAux
 			var updateBucketWithdraw RollupEventUpdateBucketWithdraw
-			err := c.contractAbi.UnpackIntoInterface(&updateBucketWithdrawAux,
+			err := c.contractAbi.UnpackIntoInterface(&updateBucketWithdrawAux, "UpdateBucketWithdraw", vLog.Data)
-				"UpdateBucketWithdraw", vLog.Data)
 			if err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			updateBucketWithdraw.Withdrawals = updateBucketWithdrawAux.Withdrawals
 			updateBucketWithdraw.NumBucket = int(new(big.Int).SetBytes(vLog.Topics[1][:]).Int64())
 			updateBucketWithdraw.BlockStamp = new(big.Int).SetBytes(vLog.Topics[2][:]).Int64()
-			rollupEvents.UpdateBucketWithdraw =
+			rollupEvents.UpdateBucketWithdraw = append(rollupEvents.UpdateBucketWithdraw, updateBucketWithdraw)
-				append(rollupEvents.UpdateBucketWithdraw, updateBucketWithdraw)
 
 		case logHermezUpdateWithdrawalDelay:
 			var withdrawalDelay RollupEventUpdateWithdrawalDelay
@@ -901,8 +857,7 @@ func (c *RollupClient) RollupEventsByBlock(blockNum int64,
 		case logHermezUpdateBucketsParameters:
 			var bucketsParametersAux rollupEventUpdateBucketsParametersAux
 			var bucketsParameters RollupEventUpdateBucketsParameters
-			err := c.contractAbi.UnpackIntoInterface(&bucketsParametersAux,
+			err := c.contractAbi.UnpackIntoInterface(&bucketsParametersAux, "UpdateBucketsParameters", vLog.Data)
-				"UpdateBucketsParameters", vLog.Data)
 			if err != nil {
 				return nil, tracerr.Wrap(err)
 			}
@@ -912,8 +867,7 @@ func (c *RollupClient) RollupEventsByBlock(blockNum int64,
 				bucketsParameters.ArrayBuckets[i].BlockWithdrawalRate = bucket[2]
 				bucketsParameters.ArrayBuckets[i].MaxWithdrawals = bucket[3]
 			}
-			rollupEvents.UpdateBucketsParameters =
+			rollupEvents.UpdateBucketsParameters = append(rollupEvents.UpdateBucketsParameters, bucketsParameters)
-				append(rollupEvents.UpdateBucketsParameters, bucketsParameters)
 		case logHermezUpdateTokenExchange:
 			var tokensExchange RollupEventUpdateTokenExchange
 			err := c.contractAbi.UnpackIntoInterface(&tokensExchange, "UpdateTokenExchange", vLog.Data)
@@ -945,8 +899,7 @@ func (c *RollupClient) RollupEventsByBlock(blockNum int64,
 
 // RollupForgeBatchArgs returns the arguments used in a ForgeBatch call in the
 // Rollup Smart Contract in the given transaction, and the sender address.
-func (c *RollupClient) RollupForgeBatchArgs(ethTxHash ethCommon.Hash,
+func (c *RollupClient) RollupForgeBatchArgs(ethTxHash ethCommon.Hash, l1UserTxsLen uint16) (*RollupForgeBatchArgs, *ethCommon.Address, error) {
-	l1UserTxsLen uint16) (*RollupForgeBatchArgs, *ethCommon.Address, error) {
 	tx, _, err := c.client.client.TransactionByHash(context.Background(), ethTxHash)
 	if err != nil {
 		return nil, nil, tracerr.Wrap(fmt.Errorf("TransactionByHash: %w", err))
@@ -961,8 +914,7 @@ func (c *RollupClient) RollupForgeBatchArgs(ethTxHash ethCommon.Hash,
 	if err != nil {
 		return nil, nil, tracerr.Wrap(err)
 	}
-	sender, err := c.client.client.TransactionSender(context.Background(), tx,
+	sender, err := c.client.client.TransactionSender(context.Background(), tx, receipt.Logs[0].BlockHash, receipt.Logs[0].Index)
-		receipt.Logs[0].BlockHash, receipt.Logs[0].Index)
 	if err != nil {
 		return nil, nil, tracerr.Wrap(err)
 	}
@@ -987,7 +939,7 @@ func (c *RollupClient) RollupForgeBatchArgs(ethTxHash ethCommon.Hash,
 		FeeIdxCoordinator:     []common.Idx{},
 	}
 	nLevels := c.consts.Verifiers[rollupForgeBatchArgs.VerifierIdx].NLevels
-	lenL1L2TxsBytes := int((nLevels/8)*2 + common.Float40BytesLength + 1) //nolint:gomnd
+	lenL1L2TxsBytes := int((nLevels/8)*2 + common.Float40BytesLength + 1)
 	numBytesL1TxUser := int(l1UserTxsLen) * lenL1L2TxsBytes
 	numTxsL1Coord := len(aux.EncodedL1CoordinatorTx) / common.RollupConstL1CoordinatorTotalBytes
 	numBytesL1TxCoord := numTxsL1Coord * lenL1L2TxsBytes
@@ -997,9 +949,7 @@ func (c *RollupClient) RollupForgeBatchArgs(ethTxHash ethCommon.Hash,
 		l1UserTxsData = aux.L1L2TxsData[:numBytesL1TxUser]
 	}
 	for i := 0; i < int(l1UserTxsLen); i++ {
-		l1Tx, err :=
+		l1Tx, err := common.L1TxFromDataAvailability(l1UserTxsData[i*lenL1L2TxsBytes:(i+1)*lenL1L2TxsBytes], uint32(nLevels))
-			common.L1TxFromDataAvailability(l1UserTxsData[i*lenL1L2TxsBytes:(i+1)*lenL1L2TxsBytes],
-				uint32(nLevels))
 		if err != nil {
 			return nil, nil, tracerr.Wrap(err)
 		}
@@ -1011,17 +961,14 @@ func (c *RollupClient) RollupForgeBatchArgs(ethTxHash ethCommon.Hash,
 	}
 	numTxsL2 := len(l2TxsData) / lenL1L2TxsBytes
 	for i := 0; i < numTxsL2; i++ {
-		l2Tx, err :=
+		l2Tx, err := common.L2TxFromBytesDataAvailability(l2TxsData[i*lenL1L2TxsBytes:(i+1)*lenL1L2TxsBytes], int(nLevels))
-			common.L2TxFromBytesDataAvailability(l2TxsData[i*lenL1L2TxsBytes:(i+1)*lenL1L2TxsBytes],
-				int(nLevels))
 		if err != nil {
 			return nil, nil, tracerr.Wrap(err)
 		}
 		rollupForgeBatchArgs.L2TxsData = append(rollupForgeBatchArgs.L2TxsData, *l2Tx)
 	}
 	for i := 0; i < numTxsL1Coord; i++ {
-		bytesL1Coordinator :=
+		bytesL1Coordinator := aux.EncodedL1CoordinatorTx[i*common.RollupConstL1CoordinatorTotalBytes : (i+1)*common.RollupConstL1CoordinatorTotalBytes]
-			aux.EncodedL1CoordinatorTx[i*common.RollupConstL1CoordinatorTotalBytes : (i+1)*common.RollupConstL1CoordinatorTotalBytes] //nolint:lll
 		var signature []byte
 		v := bytesL1Coordinator[0]
 		s := bytesL1Coordinator[1:33]
@@ -1034,29 +981,24 @@ func (c *RollupClient) RollupForgeBatchArgs(ethTxHash ethCommon.Hash,
 			return nil, nil, tracerr.Wrap(err)
 		}
 		rollupForgeBatchArgs.L1CoordinatorTxs = append(rollupForgeBatchArgs.L1CoordinatorTxs, *l1Tx)
-		rollupForgeBatchArgs.L1CoordinatorTxsAuths =
+		rollupForgeBatchArgs.L1CoordinatorTxsAuths = append(rollupForgeBatchArgs.L1CoordinatorTxsAuths, signature)
-			append(rollupForgeBatchArgs.L1CoordinatorTxsAuths, signature)
 	}
 	lenFeeIdxCoordinatorBytes := int(nLevels / 8) //nolint:gomnd
 	numFeeIdxCoordinator := len(aux.FeeIdxCoordinator) / lenFeeIdxCoordinatorBytes
 	for i := 0; i < numFeeIdxCoordinator; i++ {
 		var paddedFeeIdx [6]byte
-		// TODO: This check is not necessary: the first case will always work.  Test it
+		// TODO: This check is not necessary: the first case will always work.  Test it before removing the if.
-		// before removing the if.
 		if lenFeeIdxCoordinatorBytes < common.IdxBytesLen {
-			copy(paddedFeeIdx[6-lenFeeIdxCoordinatorBytes:],
+			copy(paddedFeeIdx[6-lenFeeIdxCoordinatorBytes:], aux.FeeIdxCoordinator[i*lenFeeIdxCoordinatorBytes:(i+1)*lenFeeIdxCoordinatorBytes])
-				aux.FeeIdxCoordinator[i*lenFeeIdxCoordinatorBytes:(i+1)*lenFeeIdxCoordinatorBytes])
 		} else {
-			copy(paddedFeeIdx[:],
+			copy(paddedFeeIdx[:], aux.FeeIdxCoordinator[i*lenFeeIdxCoordinatorBytes:(i+1)*lenFeeIdxCoordinatorBytes])
-				aux.FeeIdxCoordinator[i*lenFeeIdxCoordinatorBytes:(i+1)*lenFeeIdxCoordinatorBytes])
 		}
 		feeIdxCoordinator, err := common.IdxFromBytes(paddedFeeIdx[:])
 		if err != nil {
 			return nil, nil, tracerr.Wrap(err)
 		}
 		if feeIdxCoordinator != common.Idx(0) {
-			rollupForgeBatchArgs.FeeIdxCoordinator =
+			rollupForgeBatchArgs.FeeIdxCoordinator = append(rollupForgeBatchArgs.FeeIdxCoordinator, feeIdxCoordinator)
-				append(rollupForgeBatchArgs.FeeIdxCoordinator, feeIdxCoordinator)
 		}
 	}
 	return &rollupForgeBatchArgs, &sender, nil

eth/rollup_test.go

@@ -116,8 +116,7 @@ func TestRollupForgeBatch(t *testing.T) {
 	minBid.SetString("11000000000000000000", 10)
 	budget := new(big.Int)
 	budget.SetString("45200000000000000000", 10)
-	_, err = auctionClient.AuctionMultiBid(budget, currentSlot+4, currentSlot+10, slotSet,
+	_, err = auctionClient.AuctionMultiBid(budget, currentSlot+4, currentSlot+10, slotSet, maxBid, minBid, deadline)
-		maxBid, minBid, deadline)
 	require.NoError(t, err)
 
 	// Add Blocks
@@ -129,18 +128,12 @@ func TestRollupForgeBatch(t *testing.T) {
 
 	// Forge Batch 1
 	args := new(RollupForgeBatchArgs)
-	// When encoded, 64 times the 0 idx means that no idx to collect fees is specified.
+	args.FeeIdxCoordinator = []common.Idx{} // When encoded, 64 times the 0 idx means that no idx to collect fees is specified.
-	args.FeeIdxCoordinator = []common.Idx{}
+	l1CoordinatorBytes, err := hex.DecodeString("1c660323607bb113e586183609964a333d07ebe4bef3be82ec13af453bae9590bd7711cdb6abf42f176eadfbe5506fbef5e092e5543733f91b0061d9a7747fa10694a915a6470fa230de387b51e6f4db0b09787867778687b55197ad6d6a86eac000000001")
-	l1CoordinatorBytes, err := hex.DecodeString(
-		"1c660323607bb113e586183609964a333d07ebe4bef3be82ec13af453bae9590bd7711cdb6abf" +
-			"42f176eadfbe5506fbef5e092e5543733f91b0061d9a7747fa10694a915a6470fa230" +
-			"de387b51e6f4db0b09787867778687b55197ad6d6a86eac000000001")
 	require.NoError(t, err)
 	numTxsL1 := len(l1CoordinatorBytes) / common.RollupConstL1CoordinatorTotalBytes
 	for i := 0; i < numTxsL1; i++ {
-		bytesL1Coordinator :=
+		bytesL1Coordinator := l1CoordinatorBytes[i*common.RollupConstL1CoordinatorTotalBytes : (i+1)*common.RollupConstL1CoordinatorTotalBytes]
-			l1CoordinatorBytes[i*common.RollupConstL1CoordinatorTotalBytes : (i+1)*
-				common.RollupConstL1CoordinatorTotalBytes]
 		var signature []byte
 		v := bytesL1Coordinator[0]
 		s := bytesL1Coordinator[1:33]
@@ -156,12 +149,9 @@ func TestRollupForgeBatch(t *testing.T) {
 	args.L1UserTxs = []common.L1Tx{}
 	args.L2TxsData = []common.L2Tx{}
 	newStateRoot := new(big.Int)
-	newStateRoot.SetString(
+	newStateRoot.SetString("18317824016047294649053625209337295956588174734569560016974612130063629505228", 10)
-		"18317824016047294649053625209337295956588174734569560016974612130063629505228",
-		10)
 	newExitRoot := new(big.Int)
-	bytesNumExitRoot, err := hex.DecodeString(
+	bytesNumExitRoot, err := hex.DecodeString("10a89d5fe8d488eda1ba371d633515739933c706c210c604f5bd209180daa43b")
-		"10a89d5fe8d488eda1ba371d633515739933c706c210c604f5bd209180daa43b")
 	require.NoError(t, err)
 	newExitRoot.SetBytes(bytesNumExitRoot)
 	args.NewLastIdx = int64(300)
@@ -216,8 +206,7 @@ func TestRollupUpdateForgeL1L2BatchTimeout(t *testing.T) {
 	rollupEvents, err := rollupClient.RollupEventsByBlock(currentBlockNum, nil)
 	require.NoError(t, err)
 
-	assert.Equal(t, newForgeL1L2BatchTimeout,
+	assert.Equal(t, newForgeL1L2BatchTimeout, rollupEvents.UpdateForgeL1L2BatchTimeout[0].NewForgeL1L2BatchTimeout)
-		rollupEvents.UpdateForgeL1L2BatchTimeout[0].NewForgeL1L2BatchTimeout)
 }
 
 func TestRollupUpdateFeeAddToken(t *testing.T) {
@@ -259,8 +248,7 @@ func TestRollupUpdateWithdrawalDelay(t *testing.T) {
 	require.NoError(t, err)
 	rollupEvents, err := rollupClient.RollupEventsByBlock(currentBlockNum, nil)
 	require.NoError(t, err)
-	assert.Equal(t, newWithdrawalDelay,
+	assert.Equal(t, newWithdrawalDelay, int64(rollupEvents.UpdateWithdrawalDelay[0].NewWithdrawalDelay))
-		int64(rollupEvents.UpdateWithdrawalDelay[0].NewWithdrawalDelay))
 }
 
 func TestRollupUpdateTokenExchange(t *testing.T) {
@@ -299,8 +287,7 @@ func TestRollupL1UserTxETHCreateAccountDeposit(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -312,13 +299,11 @@ func TestRollupL1UserTxETHCreateAccountDeposit(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20CreateAccountDeposit(t *testing.T) {
-	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst,
+	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	key := genKeysBjj(1)
 	fromIdxInt64 := int64(0)
@@ -334,8 +319,7 @@ func TestRollupL1UserTxERC20CreateAccountDeposit(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -347,13 +331,11 @@ func TestRollupL1UserTxERC20CreateAccountDeposit(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux2.client.account.Address,
+	assert.Equal(t, rollupClientAux2.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20PermitCreateAccountDeposit(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	key := genKeysBjj(3)
 	fromIdxInt64 := int64(0)
@@ -369,8 +351,7 @@ func TestRollupL1UserTxERC20PermitCreateAccountDeposit(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -382,13 +363,11 @@ func TestRollupL1UserTxERC20PermitCreateAccountDeposit(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxETHDeposit(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(256)
 	toIdxInt64 := int64(0)
@@ -404,8 +383,7 @@ func TestRollupL1UserTxETHDeposit(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -416,13 +394,11 @@ func TestRollupL1UserTxETHDeposit(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20Deposit(t *testing.T) {
-	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst,
+	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(257)
 	toIdxInt64 := int64(0)
@@ -437,8 +413,7 @@ func TestRollupL1UserTxERC20Deposit(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -449,13 +424,11 @@ func TestRollupL1UserTxERC20Deposit(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux2.client.account.Address,
+	assert.Equal(t, rollupClientAux2.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20PermitDeposit(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(258)
 	toIdxInt64 := int64(0)
@@ -469,8 +442,7 @@ func TestRollupL1UserTxERC20PermitDeposit(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -481,13 +453,11 @@ func TestRollupL1UserTxERC20PermitDeposit(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxETHDepositTransfer(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(256)
 	toIdxInt64 := int64(257)
@@ -503,8 +473,7 @@ func TestRollupL1UserTxETHDepositTransfer(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -515,13 +484,11 @@ func TestRollupL1UserTxETHDepositTransfer(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20DepositTransfer(t *testing.T) {
-	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst,
+	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(257)
 	toIdxInt64 := int64(258)
@@ -536,8 +503,7 @@ func TestRollupL1UserTxERC20DepositTransfer(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -548,13 +514,11 @@ func TestRollupL1UserTxERC20DepositTransfer(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux2.client.account.Address,
+	assert.Equal(t, rollupClientAux2.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20PermitDepositTransfer(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(258)
 	toIdxInt64 := int64(259)
@@ -569,8 +533,7 @@ func TestRollupL1UserTxERC20PermitDepositTransfer(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -581,13 +544,11 @@ func TestRollupL1UserTxERC20PermitDepositTransfer(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxETHCreateAccountDepositTransfer(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(256)
 	toIdxInt64 := int64(257)
@@ -603,8 +564,7 @@ func TestRollupL1UserTxETHCreateAccountDepositTransfer(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -615,13 +575,11 @@ func TestRollupL1UserTxETHCreateAccountDepositTransfer(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20CreateAccountDepositTransfer(t *testing.T) {
-	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst,
+	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(257)
 	toIdxInt64 := int64(258)
@@ -636,8 +594,7 @@ func TestRollupL1UserTxERC20CreateAccountDepositTransfer(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -648,13 +605,11 @@ func TestRollupL1UserTxERC20CreateAccountDepositTransfer(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux2.client.account.Address,
+	assert.Equal(t, rollupClientAux2.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20PermitCreateAccountDepositTransfer(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(258)
 	toIdxInt64 := int64(259)
@@ -669,8 +624,7 @@ func TestRollupL1UserTxERC20PermitCreateAccountDepositTransfer(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -681,13 +635,11 @@ func TestRollupL1UserTxERC20PermitCreateAccountDepositTransfer(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxETHForceTransfer(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(256)
 	toIdxInt64 := int64(257)
@@ -702,8 +654,7 @@ func TestRollupL1UserTxETHForceTransfer(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -714,13 +665,11 @@ func TestRollupL1UserTxETHForceTransfer(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20ForceTransfer(t *testing.T) {
-	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst,
+	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(257)
 	toIdxInt64 := int64(258)
@@ -734,8 +683,7 @@ func TestRollupL1UserTxERC20ForceTransfer(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -746,13 +694,11 @@ func TestRollupL1UserTxERC20ForceTransfer(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux2.client.account.Address,
+	assert.Equal(t, rollupClientAux2.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20PermitForceTransfer(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(259)
 	toIdxInt64 := int64(260)
@@ -766,8 +712,7 @@ func TestRollupL1UserTxERC20PermitForceTransfer(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -778,13 +723,11 @@ func TestRollupL1UserTxERC20PermitForceTransfer(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxETHForceExit(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(256)
 	toIdxInt64 := int64(1)
@@ -799,8 +742,7 @@ func TestRollupL1UserTxETHForceExit(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDUint32, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -811,13 +753,11 @@ func TestRollupL1UserTxETHForceExit(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20ForceExit(t *testing.T) {
-	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst,
+	rollupClientAux2, err := NewRollupClient(ethereumClientAux2, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(257)
 	toIdxInt64 := int64(1)
@@ -831,8 +771,7 @@ func TestRollupL1UserTxERC20ForceExit(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux2.RollupL1UserTxERC20ETH(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenHEZID, toIdxInt64)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -843,13 +782,11 @@ func TestRollupL1UserTxERC20ForceExit(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux2.client.account.Address,
+	assert.Equal(t, rollupClientAux2.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupL1UserTxERC20PermitForceExit(t *testing.T) {
-	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst,
+	rollupClientAux, err := NewRollupClient(ethereumClientAux, hermezRollupAddressConst, tokenHEZ)
-		tokenHEZ)
 	require.NoError(t, err)
 	fromIdxInt64 := int64(258)
 	toIdxInt64 := int64(1)
@@ -865,8 +802,7 @@ func TestRollupL1UserTxERC20PermitForceExit(t *testing.T) {
 	}
 	L1UserTxs = append(L1UserTxs, l1Tx)
 
-	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64,
+	_, err = rollupClientAux.RollupL1UserTxERC20Permit(l1Tx.FromBJJ, fromIdxInt64, l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
-		l1Tx.DepositAmount, l1Tx.Amount, tokenIDERC777, toIdxInt64, deadline)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()
@@ -877,8 +813,7 @@ func TestRollupL1UserTxERC20PermitForceExit(t *testing.T) {
 	assert.Equal(t, l1Tx.DepositAmount, rollupEvents.L1UserTx[0].L1UserTx.DepositAmount)
 	assert.Equal(t, l1Tx.TokenID, rollupEvents.L1UserTx[0].L1UserTx.TokenID)
 	assert.Equal(t, l1Tx.Amount, rollupEvents.L1UserTx[0].L1UserTx.Amount)
-	assert.Equal(t, rollupClientAux.client.account.Address,
+	assert.Equal(t, rollupClientAux.client.account.Address, rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
-		rollupEvents.L1UserTx[0].L1UserTx.FromEthAddr)
 }
 
 func TestRollupForgeBatch2(t *testing.T) {
@@ -894,8 +829,7 @@ func TestRollupForgeBatch2(t *testing.T) {
 
 	// Forge Batch 3
 	args := new(RollupForgeBatchArgs)
-	// When encoded, 64 times the 0 idx means that no idx to collect fees is specified.
+	args.FeeIdxCoordinator = []common.Idx{} // When encoded, 64 times the 0 idx means that no idx to collect fees is specified.
-	args.FeeIdxCoordinator = []common.Idx{}
 	args.L1CoordinatorTxs = argsForge.L1CoordinatorTxs
 	args.L1CoordinatorTxsAuths = argsForge.L1CoordinatorTxsAuths
 	for i := 0; i < len(L1UserTxs); i++ {
@@ -903,19 +837,14 @@ func TestRollupForgeBatch2(t *testing.T) {
 		l1UserTx.EffectiveAmount = l1UserTx.Amount
 		l1Bytes, err := l1UserTx.BytesDataAvailability(uint32(nLevels))
 		require.NoError(t, err)
-		l1UserTxDataAvailability, err := common.L1TxFromDataAvailability(l1Bytes,
+		l1UserTxDataAvailability, err := common.L1TxFromDataAvailability(l1Bytes, uint32(nLevels))
-			uint32(nLevels))
 		require.NoError(t, err)
 		args.L1UserTxs = append(args.L1UserTxs, *l1UserTxDataAvailability)
 	}
 	newStateRoot := new(big.Int)
-	newStateRoot.SetString(
+	newStateRoot.SetString("18317824016047294649053625209337295956588174734569560016974612130063629505228", 10)
-		"18317824016047294649053625209337295956588174734569560016974612130063629505228",
-		10)
 	newExitRoot := new(big.Int)
-	newExitRoot.SetString(
+	newExitRoot.SetString("1114281409737474688393837964161044726766678436313681099613347372031079422302", 10)
-		"1114281409737474688393837964161044726766678436313681099613347372031079422302",
-		10)
 	amount := new(big.Int)
 	amount.SetString("79000000", 10)
 	l2Tx := common.L2Tx{
@@ -975,8 +904,7 @@ func TestRollupWithdrawMerkleProof(t *testing.T) {
 	require.NoError(t, err)
 
 	var pkComp babyjub.PublicKeyComp
-	pkCompBE, err :=
+	pkCompBE, err := hex.DecodeString("adc3b754f8da621967b073a787bef8eec7052f2ba712b23af57d98f65beea8b2")
-		hex.DecodeString("adc3b754f8da621967b073a787bef8eec7052f2ba712b23af57d98f65beea8b2")
 	require.NoError(t, err)
 	pkCompLE := common.SwapEndianness(pkCompBE)
 	copy(pkComp[:], pkCompLE)
@@ -986,20 +914,16 @@ func TestRollupWithdrawMerkleProof(t *testing.T) {
 	numExitRoot := int64(3)
 	fromIdx := int64(256)
 	amount, _ := new(big.Int).SetString("20000000000000000000", 10)
-	// siblingBytes0, err := new(big.Int).SetString(
+	// siblingBytes0, err := new(big.Int).SetString("19508838618377323910556678335932426220272947530531646682154552299216398748115", 10)
-	// 		"19508838618377323910556678335932426220272947530531646682154552299216398748115",
-	// 		10)
 	// require.NoError(t, err)
-	// siblingBytes1, err := new(big.Int).SetString(
+	// siblingBytes1, err := new(big.Int).SetString("15198806719713909654457742294233381653226080862567104272457668857208564789571", 10)
-	// 	"15198806719713909654457742294233381653226080862567104272457668857208564789571", 10)
 	// require.NoError(t, err)
 	var siblings []*big.Int
 	// siblings = append(siblings, siblingBytes0)
 	// siblings = append(siblings, siblingBytes1)
 	instantWithdraw := true
 
-	_, err = rollupClientAux.RollupWithdrawMerkleProof(pkComp, tokenID, numExitRoot, fromIdx,
+	_, err = rollupClientAux.RollupWithdrawMerkleProof(pkComp, tokenID, numExitRoot, fromIdx, amount, siblings, instantWithdraw)
-		amount, siblings, instantWithdraw)
 	require.NoError(t, err)
 
 	currentBlockNum, err := rollupClient.client.EthLastBlock()

eth/wdelayer.go

@@ -132,8 +132,7 @@ type WDelayerInterface interface {
 	WDelayerDepositInfo(owner, token ethCommon.Address) (depositInfo DepositState, err error)
 	WDelayerDeposit(onwer, token ethCommon.Address, amount *big.Int) (*types.Transaction, error)
 	WDelayerWithdrawal(owner, token ethCommon.Address) (*types.Transaction, error)
-	WDelayerEscapeHatchWithdrawal(to, token ethCommon.Address,
+	WDelayerEscapeHatchWithdrawal(to, token ethCommon.Address, amount *big.Int) (*types.Transaction, error)
-		amount *big.Int) (*types.Transaction, error)
 
 	WDelayerEventsByBlock(blockNum int64, blockHash *ethCommon.Hash) (*WDelayerEvents, error)
 	WDelayerConstants() (*common.WDelayerConstants, error)
@@ -144,8 +143,7 @@ type WDelayerInterface interface {
 // Implementation
 //
 
-// WDelayerClient is the implementation of the interface to the WithdrawDelayer
+// WDelayerClient is the implementation of the interface to the WithdrawDelayer Smart Contract in ethereum.
-// Smart Contract in ethereum.
 type WDelayerClient struct {
 	client      *EthereumClient
 	address     ethCommon.Address
@@ -174,8 +172,7 @@ func NewWDelayerClient(client *EthereumClient, address ethCommon.Address) (*WDel
 }
 
 // WDelayerGetHermezGovernanceAddress is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerGetHermezGovernanceAddress() (
+func (c *WDelayerClient) WDelayerGetHermezGovernanceAddress() (hermezGovernanceAddress *ethCommon.Address, err error) {
-	hermezGovernanceAddress *ethCommon.Address, err error) {
 	var _hermezGovernanceAddress ethCommon.Address
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		_hermezGovernanceAddress, err = c.wdelayer.GetHermezGovernanceAddress(c.opts)
@@ -187,8 +184,7 @@ func (c *WDelayerClient) WDelayerGetHermezGovernanceAddress() (
 }
 
 // WDelayerTransferGovernance is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerTransferGovernance(newAddress ethCommon.Address) (
+func (c *WDelayerClient) WDelayerTransferGovernance(newAddress ethCommon.Address) (tx *types.Transaction, err error) {
-	tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -214,8 +210,7 @@ func (c *WDelayerClient) WDelayerClaimGovernance() (tx *types.Transaction, err e
 }
 
 // WDelayerGetEmergencyCouncil is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerGetEmergencyCouncil() (emergencyCouncilAddress *ethCommon.Address,
+func (c *WDelayerClient) WDelayerGetEmergencyCouncil() (emergencyCouncilAddress *ethCommon.Address, err error) {
-	err error) {
 	var _emergencyCouncilAddress ethCommon.Address
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		_emergencyCouncilAddress, err = c.wdelayer.GetEmergencyCouncil(c.opts)
@@ -227,8 +222,7 @@ func (c *WDelayerClient) WDelayerGetEmergencyCouncil() (emergencyCouncilAddress
 }
 
 // WDelayerTransferEmergencyCouncil is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerTransferEmergencyCouncil(newAddress ethCommon.Address) (
+func (c *WDelayerClient) WDelayerTransferEmergencyCouncil(newAddress ethCommon.Address) (tx *types.Transaction, err error) {
-	tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -277,8 +271,7 @@ func (c *WDelayerClient) WDelayerGetWithdrawalDelay() (withdrawalDelay int64, er
 }
 
 // WDelayerGetEmergencyModeStartingTime is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerGetEmergencyModeStartingTime() (emergencyModeStartingTime int64,
+func (c *WDelayerClient) WDelayerGetEmergencyModeStartingTime() (emergencyModeStartingTime int64, err error) {
-	err error) {
 	var _emergencyModeStartingTime uint64
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		_emergencyModeStartingTime, err = c.wdelayer.GetEmergencyModeStartingTime(c.opts)
@@ -303,8 +296,7 @@ func (c *WDelayerClient) WDelayerEnableEmergencyMode() (tx *types.Transaction, e
 }
 
 // WDelayerChangeWithdrawalDelay is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerChangeWithdrawalDelay(newWithdrawalDelay uint64) (
+func (c *WDelayerClient) WDelayerChangeWithdrawalDelay(newWithdrawalDelay uint64) (tx *types.Transaction, err error) {
-	tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -317,8 +309,7 @@ func (c *WDelayerClient) WDelayerChangeWithdrawalDelay(newWithdrawalDelay uint64
 }
 
 // WDelayerDepositInfo is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerDepositInfo(owner, token ethCommon.Address) (
+func (c *WDelayerClient) WDelayerDepositInfo(owner, token ethCommon.Address) (depositInfo DepositState, err error) {
-	depositInfo DepositState, err error) {
 	if err := c.client.Call(func(ec *ethclient.Client) error {
 		amount, depositTimestamp, err := c.wdelayer.DepositInfo(c.opts, owner, token)
 		depositInfo.Amount = amount
@@ -331,8 +322,7 @@ func (c *WDelayerClient) WDelayerDepositInfo(owner, token ethCommon.Address) (
 }
 
 // WDelayerDeposit is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerDeposit(owner, token ethCommon.Address, amount *big.Int) (
+func (c *WDelayerClient) WDelayerDeposit(owner, token ethCommon.Address, amount *big.Int) (tx *types.Transaction, err error) {
-	tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -345,8 +335,7 @@ func (c *WDelayerClient) WDelayerDeposit(owner, token ethCommon.Address, amount
 }
 
 // WDelayerWithdrawal is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerWithdrawal(owner, token ethCommon.Address) (tx *types.Transaction,
+func (c *WDelayerClient) WDelayerWithdrawal(owner, token ethCommon.Address) (tx *types.Transaction, err error) {
-	err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -359,8 +348,7 @@ func (c *WDelayerClient) WDelayerWithdrawal(owner, token ethCommon.Address) (tx
 }
 
 // WDelayerEscapeHatchWithdrawal is the interface to call the smart contract function
-func (c *WDelayerClient) WDelayerEscapeHatchWithdrawal(to, token ethCommon.Address,
+func (c *WDelayerClient) WDelayerEscapeHatchWithdrawal(to, token ethCommon.Address, amount *big.Int) (tx *types.Transaction, err error) {
-	amount *big.Int) (tx *types.Transaction, err error) {
 	if tx, err = c.client.CallAuth(
 		0,
 		func(ec *ethclient.Client, auth *bind.TransactOpts) (*types.Transaction, error) {
@@ -396,21 +384,14 @@ func (c *WDelayerClient) WDelayerConstants() (constants *common.WDelayerConstant
 }
 
 var (
-	logWDelayerDeposit = crypto.Keccak256Hash([]byte(
+	logWDelayerDeposit                    = crypto.Keccak256Hash([]byte("Deposit(address,address,uint192,uint64)"))
-		"Deposit(address,address,uint192,uint64)"))
+	logWDelayerWithdraw                   = crypto.Keccak256Hash([]byte("Withdraw(address,address,uint192)"))
-	logWDelayerWithdraw = crypto.Keccak256Hash([]byte(
+	logWDelayerEmergencyModeEnabled       = crypto.Keccak256Hash([]byte("EmergencyModeEnabled()"))
-		"Withdraw(address,address,uint192)"))
+	logWDelayerNewWithdrawalDelay         = crypto.Keccak256Hash([]byte("NewWithdrawalDelay(uint64)"))
-	logWDelayerEmergencyModeEnabled = crypto.Keccak256Hash([]byte(
+	logWDelayerEscapeHatchWithdrawal      = crypto.Keccak256Hash([]byte("EscapeHatchWithdrawal(address,address,address,uint256)"))
-		"EmergencyModeEnabled()"))
+	logWDelayerNewEmergencyCouncil        = crypto.Keccak256Hash([]byte("NewEmergencyCouncil(address)"))
-	logWDelayerNewWithdrawalDelay = crypto.Keccak256Hash([]byte(
+	logWDelayerNewHermezGovernanceAddress = crypto.Keccak256Hash([]byte("NewHermezGovernanceAddress(address)"))
-		"NewWithdrawalDelay(uint64)"))
+	logWDelayerInitialize                 = crypto.Keccak256Hash([]byte(
-	logWDelayerEscapeHatchWithdrawal = crypto.Keccak256Hash([]byte(
-		"EscapeHatchWithdrawal(address,address,address,uint256)"))
-	logWDelayerNewEmergencyCouncil = crypto.Keccak256Hash([]byte(
-		"NewEmergencyCouncil(address)"))
-	logWDelayerNewHermezGovernanceAddress = crypto.Keccak256Hash([]byte(
-		"NewHermezGovernanceAddress(address)"))
-	logWDelayerInitialize = crypto.Keccak256Hash([]byte(
 		"InitializeWithdrawalDelayerEvent(uint64,address,address)"))
 )
 
@@ -502,51 +483,42 @@ func (c *WDelayerClient) WDelayerEventsByBlock(blockNum int64,
 
 		case logWDelayerEmergencyModeEnabled:
 			var emergencyModeEnabled WDelayerEventEmergencyModeEnabled
-			wdelayerEvents.EmergencyModeEnabled =
+			wdelayerEvents.EmergencyModeEnabled = append(wdelayerEvents.EmergencyModeEnabled, emergencyModeEnabled)
-				append(wdelayerEvents.EmergencyModeEnabled, emergencyModeEnabled)
 
 		case logWDelayerNewWithdrawalDelay:
 			var withdrawalDelay WDelayerEventNewWithdrawalDelay
-			err := c.contractAbi.UnpackIntoInterface(&withdrawalDelay,
+			err := c.contractAbi.UnpackIntoInterface(&withdrawalDelay, "NewWithdrawalDelay", vLog.Data)
-				"NewWithdrawalDelay", vLog.Data)
 			if err != nil {
 				return nil, tracerr.Wrap(err)
 			}
-			wdelayerEvents.NewWithdrawalDelay =
+			wdelayerEvents.NewWithdrawalDelay = append(wdelayerEvents.NewWithdrawalDelay, withdrawalDelay)
-				append(wdelayerEvents.NewWithdrawalDelay, withdrawalDelay)
 
 		case logWDelayerEscapeHatchWithdrawal:
 			var escapeHatchWithdrawal WDelayerEventEscapeHatchWithdrawal
-			err := c.contractAbi.UnpackIntoInterface(&escapeHatchWithdrawal,
+			err := c.contractAbi.UnpackIntoInterface(&escapeHatchWithdrawal, "EscapeHatchWithdrawal", vLog.Data)
-				"EscapeHatchWithdrawal", vLog.Data)
 			if err != nil {
 				return nil, tracerr.Wrap(err)
 			}
 			escapeHatchWithdrawal.Who = ethCommon.BytesToAddress(vLog.Topics[1].Bytes())
 			escapeHatchWithdrawal.To = ethCommon.BytesToAddress(vLog.Topics[2].Bytes())
 			escapeHatchWithdrawal.Token = ethCommon.BytesToAddress(vLog.Topics[3].Bytes())
-			wdelayerEvents.EscapeHatchWithdrawal =
+			wdelayerEvents.EscapeHatchWithdrawal = append(wdelayerEvents.EscapeHatchWithdrawal, escapeHatchWithdrawal)
-				append(wdelayerEvents.EscapeHatchWithdrawal, escapeHatchWithdrawal)
 
 		case logWDelayerNewEmergencyCouncil:
 			var emergencyCouncil WDelayerEventNewEmergencyCouncil
-			err := c.contractAbi.UnpackIntoInterface(&emergencyCouncil,
+			err := c.contractAbi.UnpackIntoInterface(&emergencyCouncil, "NewEmergencyCouncil", vLog.Data)
-				"NewEmergencyCouncil", vLog.Data)
 			if err != nil {
 				return nil, tracerr.Wrap(err)
 			}
-			wdelayerEvents.NewEmergencyCouncil =
+			wdelayerEvents.NewEmergencyCouncil = append(wdelayerEvents.NewEmergencyCouncil, emergencyCouncil)
-				append(wdelayerEvents.NewEmergencyCouncil, emergencyCouncil)
 
 		case logWDelayerNewHermezGovernanceAddress:
 			var governanceAddress WDelayerEventNewHermezGovernanceAddress
-			err := c.contractAbi.UnpackIntoInterface(&governanceAddress,
+			err := c.contractAbi.UnpackIntoInterface(&governanceAddress, "NewHermezGovernanceAddress", vLog.Data)
-				"NewHermezGovernanceAddress", vLog.Data)
 			if err != nil {
 				return nil, tracerr.Wrap(err)
 			}
-			wdelayerEvents.NewHermezGovernanceAddress =
+			wdelayerEvents.NewHermezGovernanceAddress = append(wdelayerEvents.NewHermezGovernanceAddress, governanceAddress)
-				append(wdelayerEvents.NewHermezGovernanceAddress, governanceAddress)
 		}
 	}
 	return &wdelayerEvents, nil

eth/wdelayer_test.go

@@ -54,8 +54,7 @@ func TestWDelayerSetHermezGovernanceAddress(t *testing.T) {
 	require.Nil(t, err)
 	wdelayerEvents, err := wdelayerClientTest.WDelayerEventsByBlock(currentBlockNum, nil)
 	require.Nil(t, err)
-	assert.Equal(t, auxAddressConst,
+	assert.Equal(t, auxAddressConst, wdelayerEvents.NewHermezGovernanceAddress[0].NewHermezGovernanceAddress)
-		wdelayerEvents.NewHermezGovernanceAddress[0].NewHermezGovernanceAddress)
 	_, err = wdelayerClientAux.WDelayerTransferGovernance(governanceAddressConst)
 	require.Nil(t, err)
 	_, err = wdelayerClientTest.WDelayerClaimGovernance()
@@ -69,8 +68,7 @@ func TestWDelayerGetEmergencyCouncil(t *testing.T) {
 }
 
 func TestWDelayerSetEmergencyCouncil(t *testing.T) {
-	wdelayerClientEmergencyCouncil, err := NewWDelayerClient(ethereumClientEmergencyCouncil,
+	wdelayerClientEmergencyCouncil, err := NewWDelayerClient(ethereumClientEmergencyCouncil, wdelayerTestAddressConst)
-		wdelayerTestAddressConst)
 	require.Nil(t, err)
 	wdelayerClientAux, err := NewWDelayerClient(ethereumClientAux, wdelayerTestAddressConst)
 	require.Nil(t, err)
@@ -202,18 +200,13 @@ func TestWDelayerGetEmergencyModeStartingTime(t *testing.T) {
 func TestWDelayerEscapeHatchWithdrawal(t *testing.T) {
 	amount := new(big.Int)
 	amount.SetString("10000000000000000", 10)
-	wdelayerClientEmergencyCouncil, err := NewWDelayerClient(ethereumClientEmergencyCouncil,
+	wdelayerClientEmergencyCouncil, err := NewWDelayerClient(ethereumClientEmergencyCouncil, wdelayerTestAddressConst)
-		wdelayerTestAddressConst)
 	require.Nil(t, err)
-	_, err =
+	_, err = wdelayerClientEmergencyCouncil.WDelayerEscapeHatchWithdrawal(governanceAddressConst, tokenHEZAddressConst, amount)
-		wdelayerClientEmergencyCouncil.WDelayerEscapeHatchWithdrawal(governanceAddressConst,
-			tokenHEZAddressConst, amount)
 	require.Contains(t, err.Error(), "NO_MAX_EMERGENCY_MODE_TIME")
 	seconds := maxEmergencyModeTime.Seconds()
 	addTime(seconds, ethClientDialURL)
-	_, err =
+	_, err = wdelayerClientEmergencyCouncil.WDelayerEscapeHatchWithdrawal(governanceAddressConst, tokenHEZAddressConst, amount)
-		wdelayerClientEmergencyCouncil.WDelayerEscapeHatchWithdrawal(governanceAddressConst,
-			tokenHEZAddressConst, amount)
 	require.Nil(t, err)
 	currentBlockNum, err := wdelayerClientTest.client.EthLastBlock()
 	require.Nil(t, err)

go.mod

@@ -11,8 +11,8 @@ require (
 	github.com/gin-gonic/gin v1.5.0
 	github.com/gobuffalo/packr/v2 v2.8.1
 	github.com/hermeznetwork/tracerr v0.3.1-0.20210120162744-5da60b576169
-	github.com/iden3/go-iden3-crypto v0.0.6-0.20210308142348-8f85683b2cef
+	github.com/iden3/go-iden3-crypto v0.0.6-0.20201221160344-58e589b6eb4c
-	github.com/iden3/go-merkletree v0.0.0-20210308143313-8b63ca866189
+	github.com/iden3/go-merkletree v0.0.0-20210119155851-bb53e6ad1a12
 	github.com/jinzhu/copier v0.0.0-20190924061706-b57f9002281a
 	github.com/jmoiron/sqlx v1.2.1-0.20200615141059-0794cb1f47ee
 	github.com/joho/godotenv v1.3.0

go.sum

@@ -24,6 +24,8 @@ github.com/DataDog/zstd v1.3.6-0.20190409195224-796139022798/go.mod h1:1jcaCB/uf
 github.com/Joker/hpp v1.0.0/go.mod h1:8x5n+M1Hp5hC0g8okX3sR3vFQwynaX/UgSOM9MeBKzY=
 github.com/Joker/jade v1.0.1-0.20190614124447-d475f43051e7/go.mod h1:6E6s8o2AE4KhCrqr6GRJjdC/gNfTdxkIXvuGZZda2VM=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
+github.com/KyleBanks/depth v1.2.1 h1:5h8fQADFrWtarTdtDudMmGsC7GPbOAu6RVB3ffsVFHc=
+github.com/KyleBanks/depth v1.2.1/go.mod h1:jzSb9d0L43HxTQfT+oSA1EEp2q+ne2uh6XgeJcm8brE=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
 github.com/Shopify/goreferrer v0.0.0-20181106222321-ec9c9a553398/go.mod h1:a1uqRtAwp2Xwc6WNPJEufxJ7fx3npB4UV/JOLmbu5I0=
@@ -85,6 +87,8 @@ github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QH
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/cp v0.1.0 h1:SE+dxFebS7Iik5LK0tsi1k9ZCxEaFX4AjQmoyA+1dJk=
 github.com/cespare/cp v0.1.0/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s=
+github.com/cespare/cp v1.1.1 h1:nCb6ZLdB7NRaqsm91JtQTAme2SKJzXVsdPIPkyJr1MU=
+github.com/cespare/cp v1.1.1/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s=
 github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.0.1-0.20190104013014-3767db7a7e18/go.mod h1:HD5P3vAIAh+Y2GAxg0PrPN1P8WkepXGpjbUPDHJqqKM=
@@ -170,6 +174,8 @@ github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5Kwzbycv
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
 github.com/fjl/memsize v0.0.0-20180418122429-ca190fb6ffbc h1:jtW8jbpkO4YirRSyepBOH8E+2HEw6/hKkBvFPwhUN8c=
 github.com/fjl/memsize v0.0.0-20180418122429-ca190fb6ffbc/go.mod h1:VvhXpOYNQvB+uIk2RvXzuaQtkQJzzIx6lSBe1xv7hi0=
+github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 h1:FtmdgXiUlNeRsoNMFlKLDt+S+6hbjVMEW6RGQ7aUf7c=
+github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5/go.mod h1:VvhXpOYNQvB+uIk2RvXzuaQtkQJzzIx6lSBe1xv7hi0=
 github.com/flosch/pongo2 v0.0.0-20190707114632-bbf5a6c351f4/go.mod h1:T9YF2M40nIgbVgp3rreNmTged+9HrbNTIQf1PsaIiTA=
 github.com/franela/goblin v0.0.0-20200105215937-c9ffbefa60db/go.mod h1:7dvUGVsVBjqR7JHJk0brhHOZYGmfBYOrK0ZhYMEtBr4=
 github.com/franela/goreq v0.0.0-20171204163338-bcd34c9993f8/go.mod h1:ZhphrRTfi2rbfLwlschooIH4+wKKDR4Pdxhh+TRoA20=
@@ -330,10 +336,11 @@ github.com/huin/goupnp v1.0.0 h1:wg75sLpL6DZqwHQN6E1Cfk6mtfzS45z8OV+ic+DtHRo=
 github.com/huin/goupnp v1.0.0/go.mod h1:n9v9KO1tAxYH82qOn+UTIFQDmx5n1Zxd/ClZDMX7Bnc=
 github.com/huin/goutil v0.0.0-20170803182201-1ca381bf3150/go.mod h1:PpLOETDnJ0o3iZrZfqZzyLl6l7F3c6L1oWn7OICBi6o=
 github.com/hydrogen18/memlistener v0.0.0-20141126152155-54553eb933fb/go.mod h1:qEIFzExnS6016fRpRfxrExeVn2gbClQA99gQhnIcdhE=
-github.com/iden3/go-iden3-crypto v0.0.6-0.20210308142348-8f85683b2cef h1:72PG9b2eDlLqKszJVLrsoJbpt4CtgJLhKOjH1MJqCVY=
+github.com/iden3/go-iden3-crypto v0.0.6-0.20201218111145-a2015adb2f1b/go.mod h1:oBgthFLboAWi9feaBUFy7OxEcyn9vA1khHSL/WwWFyg=
-github.com/iden3/go-iden3-crypto v0.0.6-0.20210308142348-8f85683b2cef/go.mod h1:oBgthFLboAWi9feaBUFy7OxEcyn9vA1khHSL/WwWFyg=
+github.com/iden3/go-iden3-crypto v0.0.6-0.20201221160344-58e589b6eb4c h1:D2u8FFYey6iFXLsqqJZ8R7ch8gZum+/b98whvoSDbyg=
-github.com/iden3/go-merkletree v0.0.0-20210308143313-8b63ca866189 h1:hoarWk/SwNwnMXE0kiskcZULW0XBLQIUGYK4C39ozfs=
+github.com/iden3/go-iden3-crypto v0.0.6-0.20201221160344-58e589b6eb4c/go.mod h1:oBgthFLboAWi9feaBUFy7OxEcyn9vA1khHSL/WwWFyg=
-github.com/iden3/go-merkletree v0.0.0-20210308143313-8b63ca866189/go.mod h1:56abMeBKD4BIFe346rk+yuJ4MQgfMHe28sRx4o2gOpk=
+github.com/iden3/go-merkletree v0.0.0-20210119155851-bb53e6ad1a12 h1:DXWT0BLCSm7cJmTMQy7+iOlxkA1/5ADglufhLK52e10=
+github.com/iden3/go-merkletree v0.0.0-20210119155851-bb53e6ad1a12/go.mod h1:FdUFTW2qJiwHyy5R70uErwq7Kaq1uskyFdTfodcUJqA=
 github.com/imkira/go-interpol v1.1.0/go.mod h1:z0h2/2T3XF8kyEPpRgJ3kmNv+C43p+I/CoI+jC3w2iA=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/influxdata/influxdb v1.2.3-0.20180221223340-01288bdb0883/go.mod h1:qZna6X/4elxqT3yI9iZYdZrWWdeFOOprn86kgg4+IzY=
@@ -601,6 +608,8 @@ github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeV
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
+github.com/sirupsen/logrus v1.5.0 h1:1N5EYkVAPEywqZRJd7cwnRtCb6xJx7NH3T3WUTF980Q=
+github.com/sirupsen/logrus v1.5.0/go.mod h1:+F7Ogzej0PZc/94MaYx/nvG9jOFMD2osvC3s+Squfpo=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
 github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
@@ -619,6 +628,8 @@ github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DM
 github.com/spf13/viper v1.4.0/go.mod h1:PTJ7Z/lr49W6bUbkmS1V3by4uWynFiR9p7+dSq/yZzE=
 github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4 h1:Gb2Tyox57NRNuZ2d3rmvB3pcmbu7O1RS3m8WRx7ilrg=
 github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4/go.mod h1:RZLeN1LMWmRsyYjvAu+I6Dm9QmlDaIIt+Y+4Kd7Tp+Q=
+github.com/status-im/keycard-go v0.0.0-20190424133014-d95853db0f48 h1:ju5UTwk5Odtm4trrY+4Ca4RMj5OyXbmVeDAVad2T0Jw=
+github.com/status-im/keycard-go v0.0.0-20190424133014-d95853db0f48/go.mod h1:RZLeN1LMWmRsyYjvAu+I6Dm9QmlDaIIt+Y+4Kd7Tp+Q=
 github.com/steakknife/bloomfilter v0.0.0-20180922174646-6819c0d2a570 h1:gIlAHnH1vJb5vwEjIp5kBj/eu99p/bl0Ay2goiPe5xE=
 github.com/steakknife/bloomfilter v0.0.0-20180922174646-6819c0d2a570/go.mod h1:8OR4w3TdeIHIh1g6EMY5p0gVNOovcWC+1vpc7naMuAw=
 github.com/steakknife/hamming v0.0.0-20180906055917-c99c65617cd3 h1:njlZPzLwU639dk2kqnCPPv+wNjq7Xb6EfUxe/oX0/NM=

node/node.go

@@ -53,9 +53,10 @@ const (
 
 // Node is the Hermez Node
 type Node struct {
-	nodeAPI      *NodeAPI
+	nodeAPI         *NodeAPI
-	debugAPI     *debugapi.DebugAPI
+	stateAPIUpdater *api.StateAPIUpdater
-	priceUpdater *priceupdater.PriceUpdater
+	debugAPI        *debugapi.DebugAPI
+	priceUpdater    *priceupdater.PriceUpdater
 	// Coordinator
 	coord *coordinator.Coordinator
 
@@ -67,6 +68,7 @@ type Node struct {
 	mode         Mode
 	sqlConnRead  *sqlx.DB
 	sqlConnWrite *sqlx.DB
+	historyDB    *historydb.HistoryDB
 	ctx          context.Context
 	wg           sync.WaitGroup
 	cancel       context.CancelFunc
@@ -107,7 +109,7 @@ func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
 	}
 	var apiConnCon *dbUtils.APIConnectionController
 	if cfg.API.Explorer || mode == ModeCoordinator {
-		apiConnCon = dbUtils.NewAPIConnectionController(
+		apiConnCon = dbUtils.NewAPICnnectionController(
 			cfg.API.MaxSQLConnections,
 			cfg.API.SQLConnectionTimeout.Duration,
 		)
@@ -146,12 +148,12 @@ func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
 		if minForgeBalance != nil && balance.Cmp(minForgeBalance) == -1 {
 			return nil, tracerr.Wrap(fmt.Errorf(
 				"forger account balance is less than cfg.Coordinator.MinimumForgeAddressBalance: %v < %v",
-				balance, minForgeBalance))
+				balance.Int64(), minForgeBalance))
 		}
 		log.Infow("forger ethereum account balance",
 			"addr", cfg.Coordinator.ForgerAddress,
-			"balance", balance,
+			"balance", balance.Int64(),
-			"minForgeBalance", minForgeBalance,
+			"minForgeBalance", minForgeBalance.Int64(),
 		)
 
 		// Unlock Coordinator ForgerAddr in the keystore to make calls
@@ -220,6 +222,44 @@ func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
 		return nil, tracerr.Wrap(err)
 	}
 
+	sync, err := synchronizer.NewSynchronizer(client, historyDB, stateDB, synchronizer.Config{
+		StatsRefreshPeriod: cfg.Synchronizer.StatsRefreshPeriod.Duration,
+		ChainID:            chainIDU16,
+	})
+	if err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	initSCVars := sync.SCVars()
+
+	scConsts := common.SCConsts{
+		Rollup:   *sync.RollupConstants(),
+		Auction:  *sync.AuctionConstants(),
+		WDelayer: *sync.WDelayerConstants(),
+	}
+
+	hdbNodeCfg := historydb.NodeConfig{
+		MaxPoolTxs: cfg.Coordinator.L2DB.MaxTxs,
+		MinFeeUSD:  cfg.Coordinator.L2DB.MinFeeUSD,
+	}
+	if err := historyDB.SetNodeConfig(&hdbNodeCfg); err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	hdbConsts := historydb.Constants{
+		SCConsts: common.SCConsts{
+			Rollup:   scConsts.Rollup,
+			Auction:  scConsts.Auction,
+			WDelayer: scConsts.WDelayer,
+		},
+		ChainID:       chainIDU16,
+		HermezAddress: cfg.SmartContracts.Rollup,
+	}
+	if err := historyDB.SetConstants(&hdbConsts); err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+
+	stateAPIUpdater := api.NewStateAPIUpdater(historyDB, &hdbNodeCfg, initSCVars, &hdbConsts)
+
+	var coord *coordinator.Coordinator
 	var l2DB *l2db.L2DB
 	if mode == ModeCoordinator {
 		l2DB = l2db.NewL2DB(
@@ -230,25 +270,7 @@ func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
 			cfg.Coordinator.L2DB.TTL.Duration,
 			apiConnCon,
 		)
-	}
 
-	sync, err := synchronizer.NewSynchronizer(client, historyDB, l2DB, stateDB, synchronizer.Config{
-		StatsRefreshPeriod: cfg.Synchronizer.StatsRefreshPeriod.Duration,
-		ChainID:            chainIDU16,
-	})
-	if err != nil {
-		return nil, tracerr.Wrap(err)
-	}
-	initSCVars := sync.SCVars()
-
-	scConsts := synchronizer.SCConsts{
-		Rollup:   *sync.RollupConstants(),
-		Auction:  *sync.AuctionConstants(),
-		WDelayer: *sync.WDelayerConstants(),
-	}
-
-	var coord *coordinator.Coordinator
-	if mode == ModeCoordinator {
 		// Unlock FeeAccount EthAddr in the keystore to generate the
 		// account creation authorization
 		if !keyStore.HasAddress(cfg.Coordinator.FeeAccount.Address) {
@@ -270,15 +292,14 @@ func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
 		if err := auth.Sign(func(msg []byte) ([]byte, error) {
 			return keyStore.SignHash(feeAccount, msg)
 		}, chainIDU16, cfg.SmartContracts.Rollup); err != nil {
-			return nil, tracerr.Wrap(err)
+			return nil, err
 		}
 		coordAccount := &txselector.CoordAccount{
 			Addr:                cfg.Coordinator.FeeAccount.Address,
 			BJJ:                 cfg.Coordinator.FeeAccount.BJJ,
 			AccountCreationAuth: auth.Signature,
 		}
-		txSelector, err := txselector.NewTxSelector(coordAccount,
+		txSelector, err := txselector.NewTxSelector(coordAccount, cfg.Coordinator.TxSelector.Path, stateDB, l2DB)
-			cfg.Coordinator.TxSelector.Path, stateDB, l2DB)
 		if err != nil {
 			return nil, tracerr.Wrap(err)
 		}
@@ -367,11 +388,7 @@ func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
 			serverProofs,
 			client,
 			&scConsts,
-			&synchronizer.SCVariables{
+			initSCVars,
-				Rollup:   *initSCVars.Rollup,
-				Auction:  *initSCVars.Auction,
-				WDelayer: *initSCVars.WDelayer,
-			},
 		)
 		if err != nil {
 			return nil, tracerr.Wrap(err)
@@ -403,23 +420,11 @@ func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
 			coord, cfg.API.Explorer,
 			server,
 			historyDB,
-			stateDB,
 			l2DB,
-			&api.Config{
-				RollupConstants:   scConsts.Rollup,
-				AuctionConstants:  scConsts.Auction,
-				WDelayerConstants: scConsts.WDelayer,
-				ChainID:           chainIDU16,
-				HermezAddress:     cfg.SmartContracts.Rollup,
-			},
-			cfg.Coordinator.ForgeDelay.Duration,
 		)
 		if err != nil {
 			return nil, tracerr.Wrap(err)
 		}
-		nodeAPI.api.SetRollupVariables(*initSCVars.Rollup)
-		nodeAPI.api.SetAuctionVariables(*initSCVars.Auction)
-		nodeAPI.api.SetWDelayerVariables(*initSCVars.WDelayer)
 	}
 	var debugAPI *debugapi.DebugAPI
 	if cfg.Debug.APIAddress != "" {
@@ -432,20 +437,138 @@ func NewNode(mode Mode, cfg *config.Node) (*Node, error) {
 	}
 	ctx, cancel := context.WithCancel(context.Background())
 	return &Node{
-		nodeAPI:      nodeAPI,
+		stateAPIUpdater: stateAPIUpdater,
-		debugAPI:     debugAPI,
+		nodeAPI:         nodeAPI,
-		priceUpdater: priceUpdater,
+		debugAPI:        debugAPI,
-		coord:        coord,
+		priceUpdater:    priceUpdater,
-		sync:         sync,
+		coord:           coord,
-		cfg:          cfg,
+		sync:            sync,
-		mode:         mode,
+		cfg:             cfg,
-		sqlConnRead:  dbRead,
+		mode:            mode,
-		sqlConnWrite: dbWrite,
+		sqlConnRead:     dbRead,
-		ctx:          ctx,
+		sqlConnWrite:    dbWrite,
-		cancel:       cancel,
+		historyDB:       historyDB,
+		ctx:             ctx,
+		cancel:          cancel,
 	}, nil
 }
 
+// APIServer is a server that only runs the API
+type APIServer struct {
+	nodeAPI *NodeAPI
+	mode    Mode
+	ctx     context.Context
+	wg      sync.WaitGroup
+	cancel  context.CancelFunc
+}
+
+// NewAPIServer creates a new APIServer
+func NewAPIServer(mode Mode, cfg *config.APIServer) (*APIServer, error) {
+	meddler.Debug = cfg.Debug.MeddlerLogs
+	// Stablish DB connection
+	dbWrite, err := dbUtils.InitSQLDB(
+		cfg.PostgreSQL.PortWrite,
+		cfg.PostgreSQL.HostWrite,
+		cfg.PostgreSQL.UserWrite,
+		cfg.PostgreSQL.PasswordWrite,
+		cfg.PostgreSQL.NameWrite,
+	)
+	if err != nil {
+		return nil, tracerr.Wrap(fmt.Errorf("dbUtils.InitSQLDB: %w", err))
+	}
+	var dbRead *sqlx.DB
+	if cfg.PostgreSQL.HostRead == "" {
+		dbRead = dbWrite
+	} else if cfg.PostgreSQL.HostRead == cfg.PostgreSQL.HostWrite {
+		return nil, tracerr.Wrap(fmt.Errorf(
+			"PostgreSQL.HostRead and PostgreSQL.HostWrite must be different",
+		))
+	} else {
+		dbRead, err = dbUtils.InitSQLDB(
+			cfg.PostgreSQL.PortRead,
+			cfg.PostgreSQL.HostRead,
+			cfg.PostgreSQL.UserRead,
+			cfg.PostgreSQL.PasswordRead,
+			cfg.PostgreSQL.NameRead,
+		)
+		if err != nil {
+			return nil, tracerr.Wrap(fmt.Errorf("dbUtils.InitSQLDB: %w", err))
+		}
+	}
+	apiConnCon := dbUtils.NewAPICnnectionController(
+		cfg.API.MaxSQLConnections,
+		cfg.API.SQLConnectionTimeout.Duration,
+	)
+
+	historyDB := historydb.NewHistoryDB(dbRead, dbWrite, apiConnCon)
+
+	var l2DB *l2db.L2DB
+	if mode == ModeCoordinator {
+		l2DB = l2db.NewL2DB(
+			dbRead, dbWrite,
+			0,
+			cfg.Coordinator.L2DB.MaxTxs,
+			cfg.Coordinator.L2DB.MinFeeUSD,
+			0,
+			apiConnCon,
+		)
+	}
+
+	if cfg.Debug.GinDebugMode {
+		gin.SetMode(gin.DebugMode)
+	} else {
+		gin.SetMode(gin.ReleaseMode)
+	}
+	server := gin.Default()
+	coord := false
+	if mode == ModeCoordinator {
+		coord = cfg.Coordinator.API.Coordinator
+	}
+	nodeAPI, err := NewNodeAPI(
+		cfg.API.Address,
+		coord, cfg.API.Explorer,
+		server,
+		historyDB,
+		l2DB,
+	)
+	if err != nil {
+		return nil, tracerr.Wrap(err)
+	}
+	ctx, cancel := context.WithCancel(context.Background())
+	return &APIServer{
+		nodeAPI: nodeAPI,
+		mode:    mode,
+		ctx:     ctx,
+		cancel:  cancel,
+	}, nil
+}
+
+// Start the APIServer
+func (s *APIServer) Start() {
+	log.Infow("Starting api server...", "mode", s.mode)
+	log.Info("Starting NodeAPI...")
+	s.wg.Add(1)
+	go func() {
+		defer func() {
+			log.Info("NodeAPI routine stopped")
+			s.wg.Done()
+		}()
+		if err := s.nodeAPI.Run(s.ctx); err != nil {
+			if s.ctx.Err() != nil {
+				return
+			}
+			log.Fatalw("NodeAPI.Run", "err", err)
+		}
+	}()
+}
+
+// Stop the APIServer
+func (s *APIServer) Stop() {
+	log.Infow("Stopping NodeAPI...")
+	s.cancel()
+	s.wg.Wait()
+}
+
 // NodeAPI holds the node http API
 type NodeAPI struct { //nolint:golint
 	api    *api.API
@@ -465,10 +588,7 @@ func NewNodeAPI(
 	coordinatorEndpoints, explorerEndpoints bool,
 	server *gin.Engine,
 	hdb *historydb.HistoryDB,
-	sdb *statedb.StateDB,
 	l2db *l2db.L2DB,
-	config *api.Config,
-	forgeDelay time.Duration,
 ) (*NodeAPI, error) {
 	engine := gin.Default()
 	engine.NoRoute(handleNoRoute)
@@ -478,10 +598,6 @@ func NewNodeAPI(
 		engine,
 		hdb,
 		l2db,
-		config,
-		&api.NodeConfig{
-			ForgeDelay: forgeDelay.Seconds(),
-		},
 	)
 	if err != nil {
 		return nil, tracerr.Wrap(err)
@@ -493,8 +609,8 @@ func NewNodeAPI(
 	}, nil
 }
 
-// Run starts the http server of the NodeAPI.  To stop it, pass a context
+// Run starts the http server of the NodeAPI.  To stop it, pass a context with
-// with cancellation.
+// cancelation.
 func (a *NodeAPI) Run(ctx context.Context) error {
 	server := &http.Server{
 		Handler: a.engine,
@@ -526,65 +642,56 @@ func (a *NodeAPI) Run(ctx context.Context) error {
 	return nil
 }
 
-func (n *Node) handleNewBlock(ctx context.Context, stats *synchronizer.Stats,
+func (n *Node) handleNewBlock(ctx context.Context, stats *synchronizer.Stats, vars *common.SCVariablesPtr,
-	vars synchronizer.SCVariablesPtr, batches []common.BatchData) {
+	batches []common.BatchData) error {
 	if n.mode == ModeCoordinator {
 		n.coord.SendMsg(ctx, coordinator.MsgSyncBlock{
 			Stats:   *stats,
-			Vars:    vars,
+			Vars:    *vars,
 			Batches: batches,
 		})
 	}
-	if n.nodeAPI != nil {
+	n.stateAPIUpdater.SetSCVars(vars)
-		if vars.Rollup != nil {
+	if stats.Synced() {
-			n.nodeAPI.api.SetRollupVariables(*vars.Rollup)
+		if err := n.stateAPIUpdater.UpdateNetworkInfo(
+			stats.Eth.LastBlock, stats.Sync.LastBlock,
+			common.BatchNum(stats.Eth.LastBatchNum),
+			stats.Sync.Auction.CurrentSlot.SlotNum,
+		); err != nil {
+			log.Errorw("ApiStateUpdater.UpdateNetworkInfo", "err", err)
 		}
-		if vars.Auction != nil {
+	} else {
-			n.nodeAPI.api.SetAuctionVariables(*vars.Auction)
+		n.stateAPIUpdater.UpdateNetworkInfoBlock(
-		}
-		if vars.WDelayer != nil {
-			n.nodeAPI.api.SetWDelayerVariables(*vars.WDelayer)
-		}
-
-		if stats.Synced() {
-			if err := n.nodeAPI.api.UpdateNetworkInfo(
-				stats.Eth.LastBlock, stats.Sync.LastBlock,
-				common.BatchNum(stats.Eth.LastBatchNum),
-				stats.Sync.Auction.CurrentSlot.SlotNum,
-			); err != nil {
-				log.Errorw("API.UpdateNetworkInfo", "err", err)
-			}
-		} else {
-			n.nodeAPI.api.UpdateNetworkInfoBlock(
-				stats.Eth.LastBlock, stats.Sync.LastBlock,
-			)
-		}
-	}
-}
-
-func (n *Node) handleReorg(ctx context.Context, stats *synchronizer.Stats,
-	vars synchronizer.SCVariablesPtr) {
-	if n.mode == ModeCoordinator {
-		n.coord.SendMsg(ctx, coordinator.MsgSyncReorg{
-			Stats: *stats,
-			Vars:  vars,
-		})
-	}
-	if n.nodeAPI != nil {
-		vars := n.sync.SCVars()
-		n.nodeAPI.api.SetRollupVariables(*vars.Rollup)
-		n.nodeAPI.api.SetAuctionVariables(*vars.Auction)
-		n.nodeAPI.api.SetWDelayerVariables(*vars.WDelayer)
-		n.nodeAPI.api.UpdateNetworkInfoBlock(
 			stats.Eth.LastBlock, stats.Sync.LastBlock,
 		)
 	}
+	if err := n.stateAPIUpdater.Store(); err != nil {
+		return tracerr.Wrap(err)
+	}
+	return nil
+}
+
+func (n *Node) handleReorg(ctx context.Context, stats *synchronizer.Stats,
+	vars *common.SCVariables) error {
+	if n.mode == ModeCoordinator {
+		n.coord.SendMsg(ctx, coordinator.MsgSyncReorg{
+			Stats: *stats,
+			Vars:  *vars.AsPtr(),
+		})
+	}
+	n.stateAPIUpdater.SetSCVars(vars.AsPtr())
+	n.stateAPIUpdater.UpdateNetworkInfoBlock(
+		stats.Eth.LastBlock, stats.Sync.LastBlock,
+	)
+	if err := n.stateAPIUpdater.Store(); err != nil {
+		return tracerr.Wrap(err)
+	}
+	return nil
 }
 
 // TODO(Edu): Consider keeping the `lastBlock` inside synchronizer so that we
 // don't have to pass it around.
-func (n *Node) syncLoopFn(ctx context.Context, lastBlock *common.Block) (*common.Block,
+func (n *Node) syncLoopFn(ctx context.Context, lastBlock *common.Block) (*common.Block, time.Duration, error) {
-	time.Duration, error) {
 	blockData, discarded, err := n.sync.Sync(ctx, lastBlock)
 	stats := n.sync.Stats()
 	if err != nil {
@@ -594,16 +701,20 @@ func (n *Node) syncLoopFn(ctx context.Context, lastBlock *common.Block) (*common
 		// case: reorg
 		log.Infow("Synchronizer.Sync reorg", "discarded", *discarded)
 		vars := n.sync.SCVars()
-		n.handleReorg(ctx, stats, vars)
+		if err := n.handleReorg(ctx, stats, vars); err != nil {
+			return nil, time.Duration(0), tracerr.Wrap(err)
+		}
 		return nil, time.Duration(0), nil
 	} else if blockData != nil {
 		// case: new block
-		vars := synchronizer.SCVariablesPtr{
+		vars := common.SCVariablesPtr{
 			Rollup:   blockData.Rollup.Vars,
 			Auction:  blockData.Auction.Vars,
 			WDelayer: blockData.WDelayer.Vars,
 		}
-		n.handleNewBlock(ctx, stats, vars, blockData.Rollup.Batches)
+		if err := n.handleNewBlock(ctx, stats, &vars, blockData.Rollup.Batches); err != nil {
+			return nil, time.Duration(0), tracerr.Wrap(err)
+		}
 		return &blockData.Block, time.Duration(0), nil
 	} else {
 		// case: no block
@@ -622,7 +733,9 @@ func (n *Node) StartSynchronizer() {
 	// the last synced one) is synchronized
 	stats := n.sync.Stats()
 	vars := n.sync.SCVars()
-	n.handleNewBlock(n.ctx, stats, vars, []common.BatchData{})
+	if err := n.handleNewBlock(n.ctx, stats, vars.AsPtr(), []common.BatchData{}); err != nil {
+		log.Fatalw("Node.handleNewBlock", "err", err)
+	}
 
 	n.wg.Add(1)
 	go func() {
@@ -709,18 +822,25 @@ func (n *Node) StartNodeAPI() {
 	n.wg.Add(1)
 	go func() {
 		// Do an initial update on startup
-		if err := n.nodeAPI.api.UpdateMetrics(); err != nil {
+		if err := n.stateAPIUpdater.UpdateMetrics(); err != nil {
-			log.Errorw("API.UpdateMetrics", "err", err)
+			log.Errorw("ApiStateUpdater.UpdateMetrics", "err", err)
+		}
+		if err := n.stateAPIUpdater.Store(); err != nil {
+			log.Errorw("ApiStateUpdater.Store", "err", err)
 		}
 		for {
 			select {
 			case <-n.ctx.Done():
-				log.Info("API.UpdateMetrics loop done")
+				log.Info("ApiStateUpdater.UpdateMetrics loop done")
 				n.wg.Done()
 				return
 			case <-time.After(n.cfg.API.UpdateMetricsInterval.Duration):
-				if err := n.nodeAPI.api.UpdateMetrics(); err != nil {
+				if err := n.stateAPIUpdater.UpdateMetrics(); err != nil {
-					log.Errorw("API.UpdateMetrics", "err", err)
+					log.Errorw("ApiStateUpdater.UpdateMetrics", "err", err)
+					continue
+				}
+				if err := n.stateAPIUpdater.Store(); err != nil {
+					log.Errorw("ApiStateUpdater.Store", "err", err)
 				}
 			}
 		}
@@ -729,18 +849,25 @@ func (n *Node) StartNodeAPI() {
 	n.wg.Add(1)
 	go func() {
 		// Do an initial update on startup
-		if err := n.nodeAPI.api.UpdateRecommendedFee(); err != nil {
+		if err := n.stateAPIUpdater.UpdateRecommendedFee(); err != nil {
-			log.Errorw("API.UpdateRecommendedFee", "err", err)
+			log.Errorw("ApiStateUpdater.UpdateRecommendedFee", "err", err)
+		}
+		if err := n.stateAPIUpdater.Store(); err != nil {
+			log.Errorw("ApiStateUpdater.Store", "err", err)
 		}
 		for {
 			select {
 			case <-n.ctx.Done():
-				log.Info("API.UpdateRecommendedFee loop done")
+				log.Info("ApiStateUpdaterAPI.UpdateRecommendedFee loop done")
 				n.wg.Done()
 				return
 			case <-time.After(n.cfg.API.UpdateRecommendedFeeInterval.Duration):
-				if err := n.nodeAPI.api.UpdateRecommendedFee(); err != nil {
+				if err := n.stateAPIUpdater.UpdateRecommendedFee(); err != nil {
-					log.Errorw("API.UpdateRecommendedFee", "err", err)
+					log.Errorw("ApiStateUpdaterAPI.UpdateRecommendedFee", "err", err)
+					continue
+				}
+				if err := n.stateAPIUpdater.Store(); err != nil {
+					log.Errorw("ApiStateUpdater.Store", "err", err)
 				}
 			}
 		}

priceupdater/priceupdater.go

@@ -4,12 +4,9 @@ import (
 	"context"
 	"fmt"
 	"net/http"
-	"strings"
 	"time"
 
 	"github.com/dghubble/sling"
-	ethCommon "github.com/ethereum/go-ethereum/common"
-	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
 	"github.com/hermeznetwork/hermez-node/log"
 	"github.com/hermeznetwork/tracerr"
@@ -26,16 +23,12 @@ type APIType string
 const (
 	// APITypeBitFinexV2 is the http API used by bitfinex V2
 	APITypeBitFinexV2 APIType = "bitfinexV2"
-	// APITypeCoingeckoV3 is the http API used by copingecko V3
-	APITypeCoingeckoV3 APIType = "coingeckoV3"
 )
 
 func (t *APIType) valid() bool {
 	switch *t {
 	case APITypeBitFinexV2:
 		return true
-	case APITypeCoingeckoV3:
-		return true
 	default:
 		return false
 	}
@@ -43,23 +36,23 @@ func (t *APIType) valid() bool {
 
 // PriceUpdater definition
 type PriceUpdater struct {
-	db      *historydb.HistoryDB
+	db           *historydb.HistoryDB
-	apiURL  string
+	apiURL       string
-	apiType APIType
+	apiType      APIType
-	tokens  []historydb.TokenSymbolAndAddr
+	tokenSymbols []string
 }
 
 // NewPriceUpdater is the constructor for the updater
-func NewPriceUpdater(apiURL string, apiType APIType, db *historydb.HistoryDB) (*PriceUpdater,
+func NewPriceUpdater(apiURL string, apiType APIType, db *historydb.HistoryDB) (*PriceUpdater, error) {
-	error) {
+	tokenSymbols := []string{}
 	if !apiType.valid() {
 		return nil, tracerr.Wrap(fmt.Errorf("Invalid apiType: %v", apiType))
 	}
 	return &PriceUpdater{
-		db:      db,
+		db:           db,
-		apiURL:  apiURL,
+		apiURL:       apiURL,
-		apiType: apiType,
+		apiType:      apiType,
-		tokens:  []historydb.TokenSymbolAndAddr{},
+		tokenSymbols: tokenSymbols,
 	}, nil
 }
 
@@ -80,39 +73,7 @@ func getTokenPriceBitfinex(ctx context.Context, client *sling.Sling,
 	return state[6], nil
 }
 
-func getTokenPriceCoingecko(ctx context.Context, client *sling.Sling,
+// UpdatePrices is triggered by the Coordinator, and internally will update the token prices in the db
-	tokenAddr ethCommon.Address) (float64, error) {
-	responseObject := make(map[string]map[string]float64)
-	var url string
-	var id string
-	if tokenAddr == common.EmptyAddr { // Special case for Ether
-		url = "simple/price?ids=ethereum&vs_currencies=usd"
-		id = "ethereum"
-	} else { // Common case (ERC20)
-		id = strings.ToLower(tokenAddr.String())
-		url = "simple/token_price/ethereum?contract_addresses=" +
-			id + "&vs_currencies=usd"
-	}
-	req, err := client.New().Get(url).Request()
-	if err != nil {
-		return 0, tracerr.Wrap(err)
-	}
-	res, err := client.Do(req.WithContext(ctx), &responseObject, nil)
-	if err != nil {
-		return 0, tracerr.Wrap(err)
-	}
-	if res.StatusCode != http.StatusOK {
-		return 0, tracerr.Wrap(fmt.Errorf("http response is not is %v", res.StatusCode))
-	}
-	price := responseObject[id]["usd"]
-	if price <= 0 {
-		return 0, tracerr.Wrap(fmt.Errorf("price not found for %v", id))
-	}
-	return price, nil
-}
-
-// UpdatePrices is triggered by the Coordinator, and internally will update the
-// token prices in the db
 func (p *PriceUpdater) UpdatePrices(ctx context.Context) {
 	tr := &http.Transport{
 		MaxIdleConns:       defaultMaxIdleConns,
@@ -122,35 +83,33 @@ func (p *PriceUpdater) UpdatePrices(ctx context.Context) {
 	httpClient := &http.Client{Transport: tr}
 	client := sling.New().Base(p.apiURL).Client(httpClient)
 
-	for _, token := range p.tokens {
+	for _, tokenSymbol := range p.tokenSymbols {
 		var tokenPrice float64
 		var err error
 		switch p.apiType {
 		case APITypeBitFinexV2:
-			tokenPrice, err = getTokenPriceBitfinex(ctx, client, token.Symbol)
+			tokenPrice, err = getTokenPriceBitfinex(ctx, client, tokenSymbol)
-		case APITypeCoingeckoV3:
-			tokenPrice, err = getTokenPriceCoingecko(ctx, client, token.Addr)
 		}
 		if ctx.Err() != nil {
 			return
 		}
 		if err != nil {
 			log.Warnw("token price not updated (get error)",
-				"err", err, "token", token.Symbol, "apiType", p.apiType)
+				"err", err, "token", tokenSymbol, "apiType", p.apiType)
 		}
-		if err = p.db.UpdateTokenValue(token.Symbol, tokenPrice); err != nil {
+		if err = p.db.UpdateTokenValue(tokenSymbol, tokenPrice); err != nil {
 			log.Errorw("token price not updated (db error)",
-				"err", err, "token", token.Symbol, "apiType", p.apiType)
+				"err", err, "token", tokenSymbol, "apiType", p.apiType)
 		}
 	}
 }
 
 // UpdateTokenList get the registered token symbols from HistoryDB
 func (p *PriceUpdater) UpdateTokenList() error {
-	tokens, err := p.db.GetTokenSymbolsAndAddrs()
+	tokenSymbols, err := p.db.GetTokenSymbols()
 	if err != nil {
 		return tracerr.Wrap(err)
 	}
-	p.tokens = tokens
+	p.tokenSymbols = tokenSymbols
 	return nil
 }

priceupdater/priceupdater_test.go

@@ -2,6 +2,7 @@ package priceupdater
 
 import (
 	"context"
+	"math/big"
 	"os"
 	"testing"
 
@@ -14,45 +15,29 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-var historyDB *historydb.HistoryDB
+func TestPriceUpdater(t *testing.T) {
-
-func TestMain(m *testing.M) {
 	// Init DB
 	pass := os.Getenv("POSTGRES_PASS")
 	db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
-	if err != nil {
+	assert.NoError(t, err)
-		panic(err)
+	historyDB := historydb.NewHistoryDB(db, db, nil)
-	}
-	historyDB = historydb.NewHistoryDB(db, db, nil)
 	// Clean DB
 	test.WipeDB(historyDB.DB())
 	// Populate DB
 	// Gen blocks and add them to DB
 	blocks := test.GenBlocks(1, 2)
-	err = historyDB.AddBlocks(blocks)
+	assert.NoError(t, historyDB.AddBlocks(blocks))
-	if err != nil {
-		panic(err)
-	}
 	// Gen tokens and add them to DB
 	tokens := []common.Token{}
 	tokens = append(tokens, common.Token{
 		TokenID:     1,
 		EthBlockNum: blocks[0].Num,
-		EthAddr:     ethCommon.HexToAddress("0x6b175474e89094c44da98b954eedeac495271d0f"),
+		EthAddr:     ethCommon.BigToAddress(big.NewInt(2)),
 		Name:        "DAI",
 		Symbol:      "DAI",
 		Decimals:    18,
 	})
-	err = historyDB.AddTokens(tokens)
+	assert.NoError(t, historyDB.AddTokens(tokens))
-	if err != nil {
-		panic(err)
-	}
-
-	result := m.Run()
-	os.Exit(result)
-}
-
-func TestPriceUpdaterBitfinex(t *testing.T) {
 	// Init price updater
 	pu, err := NewPriceUpdater("https://api-pub.bitfinex.com/v2/", APITypeBitFinexV2, historyDB)
 	require.NoError(t, err)
@@ -60,29 +45,13 @@ func TestPriceUpdaterBitfinex(t *testing.T) {
 	assert.NoError(t, pu.UpdateTokenList())
 	// Update prices
 	pu.UpdatePrices(context.Background())
-	assertTokenHasPriceAndClean(t)
-}
-
-func TestPriceUpdaterCoingecko(t *testing.T) {
-	// Init price updater
-	pu, err := NewPriceUpdater("https://api.coingecko.com/api/v3/", APITypeCoingeckoV3, historyDB)
-	require.NoError(t, err)
-	// Update token list
-	assert.NoError(t, pu.UpdateTokenList())
-	// Update prices
-	pu.UpdatePrices(context.Background())
-	assertTokenHasPriceAndClean(t)
-}
-
-func assertTokenHasPriceAndClean(t *testing.T) {
 	// Check that prices have been updated
 	fetchedTokens, err := historyDB.GetTokensTest()
 	require.NoError(t, err)
 	// TokenID 0 (ETH) is always on the DB
 	assert.Equal(t, 2, len(fetchedTokens))
 	for _, token := range fetchedTokens {
-		require.NotNil(t, token.USD)
+		assert.NotNil(t, token.USD)
-		require.NotNil(t, token.USDUpdate)
+		assert.NotNil(t, token.USDUpdate)
-		assert.Greater(t, *token.USD, 0.0)
 	}
 }

prover/prover.go

@@ -235,7 +235,7 @@ func (p *ProofServerClient) CalculateProof(ctx context.Context, zkInputs *common
 	return tracerr.Wrap(p.apiInput(ctx, zkInputs))
 }
 
-// GetProof retrieves the Proof and Public Data (public inputs) from the
+// GetProof retreives the Proof and Public Data (public inputs) from the
 // ServerProof, blocking until the proof is ready.
 func (p *ProofServerClient) GetProof(ctx context.Context) (*Proof, []*big.Int, error) {
 	if err := p.WaitReady(ctx); err != nil {
@@ -256,8 +256,7 @@ func (p *ProofServerClient) GetProof(ctx context.Context) (*Proof, []*big.Int, e
 		}
 		return &proof, pubInputs, nil
 	}
-	return nil, nil, tracerr.Wrap(fmt.Errorf("status != %v, status = %v", StatusCodeSuccess,
+	return nil, nil, tracerr.Wrap(fmt.Errorf("status != %v, status = %v", StatusCodeSuccess, status.Status))
-		status.Status))
 }
 
 // Cancel cancels any current proof computation
@@ -298,7 +297,7 @@ func (p *MockClient) CalculateProof(ctx context.Context, zkInputs *common.ZKInpu
 	return nil
 }
 
-// GetProof retrieves the Proof from the ServerProof
+// GetProof retreives the Proof from the ServerProof
 func (p *MockClient) GetProof(ctx context.Context) (*Proof, []*big.Int, error) {
 	// Simulate a delay
 	select {

synchronizer/synchronizer.go

@@ -11,7 +11,6 @@ import (
 	"github.com/ethereum/go-ethereum"
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
-	"github.com/hermeznetwork/hermez-node/db/l2db"
 	"github.com/hermeznetwork/hermez-node/db/statedb"
 	"github.com/hermeznetwork/hermez-node/eth"
 	"github.com/hermeznetwork/hermez-node/log"
@@ -32,7 +31,7 @@ var (
 	ErrUnknownBlock = fmt.Errorf("unknown block")
 )
 
-// Stats of the synchronizer
+// Stats of the syncrhonizer
 type Stats struct {
 	Eth struct {
 		RefreshPeriod time.Duration
@@ -184,26 +183,26 @@ type StartBlockNums struct {
 }
 
 // SCVariables joins all the smart contract variables in a single struct
-type SCVariables struct {
+// type SCVariables struct {
-	Rollup   common.RollupVariables   `validate:"required"`
+// 	Rollup   common.RollupVariables   `validate:"required"`
-	Auction  common.AuctionVariables  `validate:"required"`
+// 	Auction  common.AuctionVariables  `validate:"required"`
-	WDelayer common.WDelayerVariables `validate:"required"`
+// 	WDelayer common.WDelayerVariables `validate:"required"`
-}
+// }
-
+//
-// SCVariablesPtr joins all the smart contract variables as pointers in a single
+// // SCVariablesPtr joins all the smart contract variables as pointers in a single
-// struct
+// // struct
-type SCVariablesPtr struct {
+// type SCVariablesPtr struct {
-	Rollup   *common.RollupVariables   `validate:"required"`
+// 	Rollup   *common.RollupVariables   `validate:"required"`
-	Auction  *common.AuctionVariables  `validate:"required"`
+// 	Auction  *common.AuctionVariables  `validate:"required"`
-	WDelayer *common.WDelayerVariables `validate:"required"`
+// 	WDelayer *common.WDelayerVariables `validate:"required"`
-}
+// }
-
+//
-// SCConsts joins all the smart contract constants in a single struct
+// // SCConsts joins all the smart contract constants in a single struct
-type SCConsts struct {
+// type SCConsts struct {
-	Rollup   common.RollupConstants
+// 	Rollup   common.RollupConstants
-	Auction  common.AuctionConstants
+// 	Auction  common.AuctionConstants
-	WDelayer common.WDelayerConstants
+// 	WDelayer common.WDelayerConstants
-}
+// }
 
 // Config is the Synchronizer configuration
 type Config struct {
@@ -214,21 +213,20 @@ type Config struct {
 // Synchronizer implements the Synchronizer type
 type Synchronizer struct {
 	ethClient        eth.ClientInterface
-	consts           SCConsts
+	consts           common.SCConsts
 	historyDB        *historydb.HistoryDB
-	l2DB             *l2db.L2DB
 	stateDB          *statedb.StateDB
 	cfg              Config
-	initVars         SCVariables
+	initVars         common.SCVariables
 	startBlockNum    int64
-	vars             SCVariables
+	vars             common.SCVariables
 	stats            *StatsHolder
 	resetStateFailed bool
 }
 
 // NewSynchronizer creates a new Synchronizer
 func NewSynchronizer(ethClient eth.ClientInterface, historyDB *historydb.HistoryDB,
-	l2DB *l2db.L2DB, stateDB *statedb.StateDB, cfg Config) (*Synchronizer, error) {
+	stateDB *statedb.StateDB, cfg Config) (*Synchronizer, error) {
 	auctionConstants, err := ethClient.AuctionConstants()
 	if err != nil {
 		return nil, tracerr.Wrap(fmt.Errorf("NewSynchronizer ethClient.AuctionConstants(): %w",
@@ -244,7 +242,7 @@ func NewSynchronizer(ethClient eth.ClientInterface, historyDB *historydb.History
 		return nil, tracerr.Wrap(fmt.Errorf("NewSynchronizer ethClient.WDelayerConstants(): %w",
 			err))
 	}
-	consts := SCConsts{
+	consts := common.SCConsts{
 		Rollup:   *rollupConstants,
 		Auction:  *auctionConstants,
 		WDelayer: *wDelayerConstants,
@@ -273,7 +271,6 @@ func NewSynchronizer(ethClient eth.ClientInterface, historyDB *historydb.History
 		ethClient:     ethClient,
 		consts:        consts,
 		historyDB:     historyDB,
-		l2DB:          l2DB,
 		stateDB:       stateDB,
 		cfg:           cfg,
 		initVars:      *initVars,
@@ -310,11 +307,11 @@ func (s *Synchronizer) WDelayerConstants() *common.WDelayerConstants {
 }
 
 // SCVars returns a copy of the Smart Contract Variables
-func (s *Synchronizer) SCVars() SCVariablesPtr {
+func (s *Synchronizer) SCVars() *common.SCVariables {
-	return SCVariablesPtr{
+	return &common.SCVariables{
-		Rollup:   s.vars.Rollup.Copy(),
+		Rollup:   *s.vars.Rollup.Copy(),
-		Auction:  s.vars.Auction.Copy(),
+		Auction:  *s.vars.Auction.Copy(),
-		WDelayer: s.vars.WDelayer.Copy(),
+		WDelayer: *s.vars.WDelayer.Copy(),
 	}
 }
 
@@ -350,7 +347,7 @@ func (s *Synchronizer) setSlotCoordinator(slot *common.Slot) error {
 }
 
 // updateCurrentSlot updates the slot with information of the current slot.
-// The information about which coordinator is allowed to forge is only updated
+// The information abouth which coordinator is allowed to forge is only updated
 // when we are Synced.
 // hasBatch is true when the last synced block contained at least one batch.
 func (s *Synchronizer) updateCurrentSlot(slot *common.Slot, reset bool, hasBatch bool) error {
@@ -403,7 +400,7 @@ func (s *Synchronizer) updateCurrentSlot(slot *common.Slot, reset bool, hasBatch
 }
 
 // updateNextSlot updates the slot with information of the next slot.
-// The information about which coordinator is allowed to forge is only updated
+// The information abouth which coordinator is allowed to forge is only updated
 // when we are Synced.
 func (s *Synchronizer) updateNextSlot(slot *common.Slot) error {
 	// We want the next block because the current one is already mined
@@ -506,9 +503,9 @@ func (s *Synchronizer) resetIntermediateState() error {
 	return nil
 }
 
-// Sync attempts to synchronize an ethereum block starting from lastSavedBlock.
+// Sync attems to synchronize an ethereum block starting from lastSavedBlock.
 // If lastSavedBlock is nil, the lastSavedBlock value is obtained from de DB.
-// If a block is synced, it will be returned and also stored in the DB.  If a
+// If a block is synched, it will be returned and also stored in the DB.  If a
 // reorg is detected, the number of discarded blocks will be returned and no
 // synchronization will be made.
 // TODO: Be smart about locking: only lock during the read/write operations
@@ -561,7 +558,7 @@ func (s *Synchronizer) Sync(ctx context.Context,
 		"ethLastBlock", s.stats.Eth.LastBlock,
 	)
 
-	// Check that the obtained ethBlock.ParentHash == prevEthBlock.Hash; if not, reorg!
+	// Check that the obtianed ethBlock.ParentHash == prevEthBlock.Hash; if not, reorg!
 	if lastSavedBlock != nil {
 		if lastSavedBlock.Hash != ethBlock.ParentHash {
 			// Reorg detected
@@ -581,7 +578,7 @@ func (s *Synchronizer) Sync(ctx context.Context,
 		// If there was an error during sync, reset to the last block
 		// in the historyDB because the historyDB is written last in
 		// the Sync method and is the source of consistency.  This
-		// allows resetting the stateDB in the case a batch was
+		// allows reseting the stateDB in the case a batch was
 		// processed but the historyDB block was not committed due to an
 		// error.
 		if err != nil {
@@ -660,7 +657,7 @@ func (s *Synchronizer) Sync(ctx context.Context,
 	if len(rollupData.Batches) > 0 {
 		hasBatch = true
 	}
-	if err = s.updateCurrentNextSlotIfSync(false, hasBatch); err != nil {
+	if err := s.updateCurrentNextSlotIfSync(false, hasBatch); err != nil {
 		return nil, nil, tracerr.Wrap(err)
 	}
 
@@ -727,7 +724,7 @@ func (s *Synchronizer) reorg(uncleBlock *common.Block) (int64, error) {
 }
 
 func getInitialVariables(ethClient eth.ClientInterface,
-	consts *SCConsts) (*SCVariables, *StartBlockNums, error) {
+	consts *common.SCConsts) (*common.SCVariables, *StartBlockNums, error) {
 	rollupInit, rollupInitBlock, err := ethClient.RollupEventInit()
 	if err != nil {
 		return nil, nil, tracerr.Wrap(fmt.Errorf("RollupEventInit: %w", err))
@@ -743,7 +740,7 @@ func getInitialVariables(ethClient eth.ClientInterface,
 	rollupVars := rollupInit.RollupVariables()
 	auctionVars := auctionInit.AuctionVariables(consts.Auction.InitialMinimalBidding)
 	wDelayerVars := wDelayerInit.WDelayerVariables()
-	return &SCVariables{
+	return &common.SCVariables{
 			Rollup:   *rollupVars,
 			Auction:  *auctionVars,
 			WDelayer: *wDelayerVars,
@@ -821,7 +818,7 @@ func (s *Synchronizer) resetState(block *common.Block) error {
 	return nil
 }
 
-// rollupSync retrieves all the Rollup Smart Contract Data that happened at
+// rollupSync retreives all the Rollup Smart Contract Data that happened at
 // ethBlock.blockNum with ethBlock.Hash.
 func (s *Synchronizer) rollupSync(ethBlock *common.Block) (*common.RollupData, error) {
 	blockNum := ethBlock.Num
@@ -898,9 +895,6 @@ func (s *Synchronizer) rollupSync(ethBlock *common.Block) (*common.RollupData, e
 
 			position = len(l1UserTxs)
 		}
-
-		l1TxsAuth := make([]common.AccountCreationAuth,
-			0, len(forgeBatchArgs.L1CoordinatorTxsAuths))
 		// Get L1 Coordinator Txs
 		for i := range forgeBatchArgs.L1CoordinatorTxs {
 			l1CoordinatorTx := forgeBatchArgs.L1CoordinatorTxs[i]
@@ -916,30 +910,9 @@ func (s *Synchronizer) rollupSync(ethBlock *common.Block) (*common.RollupData, e
 
 			batchData.L1CoordinatorTxs = append(batchData.L1CoordinatorTxs, *l1Tx)
 			position++
-
-			// Create a slice of account creation auth to be
-			// inserted later if not exists
-			if l1CoordinatorTx.FromEthAddr != common.RollupConstEthAddressInternalOnly {
-				l1CoordinatorTxAuth := forgeBatchArgs.L1CoordinatorTxsAuths[i]
-				l1TxsAuth = append(l1TxsAuth, common.AccountCreationAuth{
-					EthAddr:   l1CoordinatorTx.FromEthAddr,
-					BJJ:       l1CoordinatorTx.FromBJJ,
-					Signature: l1CoordinatorTxAuth,
-				})
-			}
-
 			// fmt.Println("DGB l1coordtx")
 		}
 
-		// Insert the slice of account creation auth
-		// only if the node run as a coordinator
-		if s.l2DB != nil && len(l1TxsAuth) > 0 {
-			err = s.l2DB.AddManyAccountCreationAuth(l1TxsAuth)
-			if err != nil {
-				return nil, tracerr.Wrap(err)
-			}
-		}
-
 		// Insert all the txs forged in this batch (l1UserTxs,
 		// L1CoordinatorTxs, PoolL2Txs) into stateDB so that they are
 		// processed.
@@ -952,8 +925,7 @@ func (s *Synchronizer) rollupSync(ethBlock *common.Block) (*common.RollupData, e
 		}
 
 		// Transform L2 txs to PoolL2Txs
-		// NOTE: This is a big ugly, find a better way
+		poolL2Txs := common.L2TxsToPoolL2Txs(forgeBatchArgs.L2TxsData) // NOTE: This is a big ugly, find a better way
-		poolL2Txs := common.L2TxsToPoolL2Txs(forgeBatchArgs.L2TxsData)
 
 		if int(forgeBatchArgs.VerifierIdx) >= len(s.consts.Rollup.Verifiers) {
 			return nil, tracerr.Wrap(fmt.Errorf("forgeBatchArgs.VerifierIdx (%v) >= "+

synchronizer/synchronizer_test.go

@@ -15,7 +15,6 @@ import (
 	"github.com/hermeznetwork/hermez-node/common"
 	dbUtils "github.com/hermeznetwork/hermez-node/db"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
-	"github.com/hermeznetwork/hermez-node/db/l2db"
 	"github.com/hermeznetwork/hermez-node/db/statedb"
 	"github.com/hermeznetwork/hermez-node/eth"
 	"github.com/hermeznetwork/hermez-node/test"
@@ -43,8 +42,7 @@ func accountsCmp(accounts []common.Account) func(i, j int) bool {
 
 // Check Sync output and HistoryDB state against expected values generated by
 // til
-func checkSyncBlock(t *testing.T, s *Synchronizer, blockNum int, block,
+func checkSyncBlock(t *testing.T, s *Synchronizer, blockNum int, block, syncBlock *common.BlockData) {
-	syncBlock *common.BlockData) {
 	// Check Blocks
 	dbBlocks, err := s.historyDB.GetAllBlocks()
 	require.NoError(t, err)
@@ -304,14 +302,13 @@ func TestMain(m *testing.M) {
 	os.Exit(exitVal)
 }
 
-func newTestModules(t *testing.T) (*statedb.StateDB, *historydb.HistoryDB, *l2db.L2DB) {
+func newTestModules(t *testing.T) (*statedb.StateDB, *historydb.HistoryDB) {
 	// Int State DB
 	dir, err := ioutil.TempDir("", "tmpdb")
 	require.NoError(t, err)
 	deleteme = append(deleteme, dir)
 
-	stateDB, err := statedb.NewStateDB(statedb.Config{Path: dir, Keep: 128,
+	stateDB, err := statedb.NewStateDB(statedb.Config{Path: dir, Keep: 128, Type: statedb.TypeSynchronizer, NLevels: 32})
-		Type: statedb.TypeSynchronizer, NLevels: 32})
 	require.NoError(t, err)
 
 	// Init History DB
@@ -322,10 +319,7 @@ func newTestModules(t *testing.T) (*statedb.StateDB, *historydb.HistoryDB, *l2db
 	// Clear DB
 	test.WipeDB(historyDB.DB())
 
-	// Init L2 DB
+	return stateDB, historyDB
-	l2DB := l2db.NewL2DB(db, db, 10, 100, 0.0, 24*time.Hour, nil)
-
-	return stateDB, historyDB, l2DB
 }
 
 func newBigInt(s string) *big.Int {
@@ -341,7 +335,7 @@ func TestSyncGeneral(t *testing.T) {
 	// Setup
 	//
 
-	stateDB, historyDB, l2DB := newTestModules(t)
+	stateDB, historyDB := newTestModules(t)
 
 	// Init eth client
 	var timer timer
@@ -351,7 +345,7 @@ func TestSyncGeneral(t *testing.T) {
 	client := test.NewClient(true, &timer, &ethCommon.Address{}, clientSetup)
 
 	// Create Synchronizer
-	s, err := NewSynchronizer(client, historyDB, l2DB, stateDB, Config{
+	s, err := NewSynchronizer(client, historyDB, stateDB, Config{
 		StatsRefreshPeriod: 0 * time.Second,
 	})
 	require.NoError(t, err)
@@ -378,9 +372,9 @@ func TestSyncGeneral(t *testing.T) {
 	assert.Equal(t, int64(1), stats.Eth.LastBlock.Num)
 	assert.Equal(t, int64(1), stats.Sync.LastBlock.Num)
 	vars := s.SCVars()
-	assert.Equal(t, clientSetup.RollupVariables, vars.Rollup)
+	assert.Equal(t, *clientSetup.RollupVariables, vars.Rollup)
-	assert.Equal(t, clientSetup.AuctionVariables, vars.Auction)
+	assert.Equal(t, *clientSetup.AuctionVariables, vars.Auction)
-	assert.Equal(t, clientSetup.WDelayerVariables, vars.WDelayer)
+	assert.Equal(t, *clientSetup.WDelayerVariables, vars.WDelayer)
 
 	dbBlocks, err := s.historyDB.GetAllBlocks()
 	require.NoError(t, err)
@@ -450,9 +444,9 @@ func TestSyncGeneral(t *testing.T) {
 	require.Equal(t, 2, len(blocks[i].Rollup.Batches[0].L1CoordinatorTxs))
 	// Set StateRoots for batches manually (til doesn't set it)
 	blocks[i].Rollup.Batches[0].Batch.StateRoot =
-		newBigInt("11432094872416618651837327395264042968926668786266585816625577088890451620254")
+		newBigInt("18906357591508007884273218035694076596537737437965299189312069102730480717391")
 	blocks[i].Rollup.Batches[1].Batch.StateRoot =
-		newBigInt("16914212635847451457076355431350059348585556180740555407203882688922702410093")
+		newBigInt("9513185123401321669660637227182204000277156839501731093239187625486561933297")
 	// blocks 1 (blockNum=3)
 	i = 1
 	require.Equal(t, 3, int(blocks[i].Block.Num))
@@ -461,9 +455,9 @@ func TestSyncGeneral(t *testing.T) {
 	require.Equal(t, 3, len(blocks[i].Rollup.Batches[0].L2Txs))
 	// Set StateRoots for batches manually (til doesn't set it)
 	blocks[i].Rollup.Batches[0].Batch.StateRoot =
-		newBigInt("13535760140937349829640752733057594576151546047374619177689224612061148090678")
+		newBigInt("13060270878200012606074130020925677466793317216609491464427188889005039616594")
 	blocks[i].Rollup.Batches[1].Batch.StateRoot =
-		newBigInt("19413739476363469870744893742469056615496274423228302914851564791727474664804")
+		newBigInt("21427104994652624302859637783375978708867165042357535792408500519060088086054")
 
 	// Generate extra required data
 	ethAddTokens(blocks, client)
@@ -520,11 +514,9 @@ func TestSyncGeneral(t *testing.T) {
 
 	// Block 4
 	// Generate 2 withdraws manually
-	_, err = client.RollupWithdrawMerkleProof(tc.Users["A"].BJJ.Public().Compress(), 1, 4, 256,
+	_, err = client.RollupWithdrawMerkleProof(tc.Users["A"].BJJ.Public().Compress(), 1, 4, 256, big.NewInt(100), []*big.Int{}, true)
-		big.NewInt(100), []*big.Int{}, true)
 	require.NoError(t, err)
-	_, err = client.RollupWithdrawMerkleProof(tc.Users["C"].BJJ.Public().Compress(), 1, 3, 258,
+	_, err = client.RollupWithdrawMerkleProof(tc.Users["C"].BJJ.Public().Compress(), 1, 3, 258, big.NewInt(50), []*big.Int{}, false)
-		big.NewInt(50), []*big.Int{}, false)
 	require.NoError(t, err)
 	client.CtlMineBlock()
 
@@ -541,9 +533,9 @@ func TestSyncGeneral(t *testing.T) {
 	assert.Equal(t, int64(4), stats.Eth.LastBlock.Num)
 	assert.Equal(t, int64(4), stats.Sync.LastBlock.Num)
 	vars = s.SCVars()
-	assert.Equal(t, clientSetup.RollupVariables, vars.Rollup)
+	assert.Equal(t, *clientSetup.RollupVariables, vars.Rollup)
-	assert.Equal(t, clientSetup.AuctionVariables, vars.Auction)
+	assert.Equal(t, *clientSetup.AuctionVariables, vars.Auction)
-	assert.Equal(t, clientSetup.WDelayerVariables, vars.WDelayer)
+	assert.Equal(t, *clientSetup.WDelayerVariables, vars.WDelayer)
 
 	dbExits, err := s.historyDB.GetAllExits()
 	require.NoError(t, err)
@@ -642,9 +634,9 @@ func TestSyncGeneral(t *testing.T) {
 
 	// Set StateRoots for batches manually (til doesn't set it)
 	blocks[0].Rollup.Batches[0].Batch.StateRoot =
-		newBigInt("14095767774967159269372103336737817266053275274769794195030162905513860477094")
+		newBigInt("11218510534825843475100588932060366395781087435899915642332104464234485046683")
 	blocks[0].Rollup.Batches[1].Batch.StateRoot =
-		newBigInt("2095674348545184674850951945506660952512376416769035169971006930847780339914")
+		newBigInt("20283020730369146334077598087403837297563965802277806438205710455191646998983")
 
 	for i := 0; i < 4; i++ {
 		client.CtlRollback()
@@ -673,9 +665,9 @@ func TestSyncGeneral(t *testing.T) {
 	assert.Equal(t, false, stats.Synced())
 	assert.Equal(t, int64(6), stats.Eth.LastBlock.Num)
 	vars = s.SCVars()
-	assert.Equal(t, clientSetup.RollupVariables, vars.Rollup)
+	assert.Equal(t, *clientSetup.RollupVariables, vars.Rollup)
-	assert.Equal(t, clientSetup.AuctionVariables, vars.Auction)
+	assert.Equal(t, *clientSetup.AuctionVariables, vars.Auction)
-	assert.Equal(t, clientSetup.WDelayerVariables, vars.WDelayer)
+	assert.Equal(t, *clientSetup.WDelayerVariables, vars.WDelayer)
 
 	// At this point, the DB only has data up to block 1
 	dbBlock, err := s.historyDB.GetLastBlock()
@@ -712,9 +704,9 @@ func TestSyncGeneral(t *testing.T) {
 		}
 
 		vars = s.SCVars()
-		assert.Equal(t, clientSetup.RollupVariables, vars.Rollup)
+		assert.Equal(t, *clientSetup.RollupVariables, vars.Rollup)
-		assert.Equal(t, clientSetup.AuctionVariables, vars.Auction)
+		assert.Equal(t, *clientSetup.AuctionVariables, vars.Auction)
-		assert.Equal(t, clientSetup.WDelayerVariables, vars.WDelayer)
+		assert.Equal(t, *clientSetup.WDelayerVariables, vars.WDelayer)
 	}
 
 	dbBlock, err = s.historyDB.GetLastBlock()
@@ -731,7 +723,7 @@ func TestSyncGeneral(t *testing.T) {
 }
 
 func TestSyncForgerCommitment(t *testing.T) {
-	stateDB, historyDB, l2DB := newTestModules(t)
+	stateDB, historyDB := newTestModules(t)
 
 	// Init eth client
 	var timer timer
@@ -744,7 +736,7 @@ func TestSyncForgerCommitment(t *testing.T) {
 	client := test.NewClient(true, &timer, &ethCommon.Address{}, clientSetup)
 
 	// Create Synchronizer
-	s, err := NewSynchronizer(client, historyDB, l2DB, stateDB, Config{
+	s, err := NewSynchronizer(client, historyDB, stateDB, Config{
 		StatsRefreshPeriod: 0 * time.Second,
 	})
 	require.NoError(t, err)
@@ -827,7 +819,7 @@ func TestSyncForgerCommitment(t *testing.T) {
 
 	// Store ForgerComitmnent observed at every block by the live synchronizer
 	syncCommitment := map[int64]bool{}
-	// Store ForgerComitmnent observed at every block by a synchronizer that is restarted
+	// Store ForgerComitmnent observed at every block by a syncrhonizer that is restarted
 	syncRestartedCommitment := map[int64]bool{}
 	for _, block := range blocks {
 		// Add block data to the smart contracts
@@ -844,7 +836,7 @@ func TestSyncForgerCommitment(t *testing.T) {
 		require.True(t, stats.Synced())
 		syncCommitment[syncBlock.Block.Num] = stats.Sync.Auction.CurrentSlot.ForgerCommitment
 
-		s2, err := NewSynchronizer(client, historyDB, l2DB, stateDB, Config{
+		s2, err := NewSynchronizer(client, historyDB, stateDB, Config{
 			StatsRefreshPeriod: 0 * time.Second,
 		})
 		require.NoError(t, err)

test/debugapi/debugapi.go

@@ -101,8 +101,8 @@ func (a *DebugAPI) handleSyncStats(c *gin.Context) {
 	c.JSON(http.StatusOK, stats)
 }
 
-// Run starts the http server of the DebugAPI.  To stop it, pass a context
+// Run starts the http server of the DebugAPI.  To stop it, pass a context with
-// with cancellation (see `debugapi_test.go` for an example).
+// cancelation (see `debugapi_test.go` for an example).
 func (a *DebugAPI) Run(ctx context.Context) error {
 	api := gin.Default()
 	api.NoRoute(handleNoRoute)

test/debugapi/debugapi_test.go

@@ -44,14 +44,13 @@ func TestDebugAPI(t *testing.T) {
 	dir, err := ioutil.TempDir("", "tmpdb")
 	require.Nil(t, err)
 
-	sdb, err := statedb.NewStateDB(statedb.Config{Path: dir, Keep: 128,
+	sdb, err := statedb.NewStateDB(statedb.Config{Path: dir, Keep: 128, Type: statedb.TypeSynchronizer, NLevels: 32})
-		Type: statedb.TypeSynchronizer, NLevels: 32})
 	require.Nil(t, err)
 	err = sdb.MakeCheckpoint() // Make a checkpoint to increment the batchNum
 	require.Nil(t, err)
 
 	addr := "localhost:12345"
-	// We won't test the sync/stats endpoint, so we can se the synchronizer to nil
+	// We won't test the sync/stats endpoint, so we can se the Syncrhonizer to nil
 	debugAPI := NewDebugAPI(addr, sdb, nil)
 
 	ctx, cancel := context.WithCancel(context.Background())
@@ -85,7 +84,7 @@ func TestDebugAPI(t *testing.T) {
 	require.Nil(t, err)
 	// Testing against a hardcoded value obtained by running the test and
 	// printing the value previously.
-	assert.Equal(t, "5705124827515775272209811244650636195377535115082365089650934878384850534213",
+	assert.Equal(t, "21765339739823365993496282904432398015268846626944509989242908567129545640185",
 		mtroot.String())
 
 	var accountAPI common.Account

test/ethclient.go

@@ -48,8 +48,7 @@ func (w *WDelayerBlock) addTransaction(tx *types.Transaction) *types.Transaction
 	return tx
 }
 
-func (w *WDelayerBlock) deposit(txHash ethCommon.Hash, owner, token ethCommon.Address,
+func (w *WDelayerBlock) deposit(txHash ethCommon.Hash, owner, token ethCommon.Address, amount *big.Int) {
-	amount *big.Int) {
 	w.Events.Deposit = append(w.Events.Deposit, eth.WDelayerEventDeposit{
 		Owner:            owner,
 		Token:            token,
@@ -183,8 +182,7 @@ func (a *AuctionBlock) canForge(forger ethCommon.Address, blockNum int64) (bool,
 
 	slotToForge := a.getSlotNumber(blockNum)
 	// Get the relativeBlock to check if the slotDeadline has been exceeded
-	relativeBlock := blockNum - (a.Constants.GenesisBlockNum + (slotToForge *
+	relativeBlock := blockNum - (a.Constants.GenesisBlockNum + (slotToForge * int64(a.Constants.BlocksPerSlot)))
-		int64(a.Constants.BlocksPerSlot)))
 
 	// If the closedMinBid is 0 it means that we have to take as minBid the
 	// one that is set for this slot set, otherwise the one that has been
@@ -283,6 +281,10 @@ type ClientSetup struct {
 // and 1 will be premined.
 //nolint:gomnd
 func NewClientSetupExample() *ClientSetup {
+	// rfield, ok := new(big.Int).SetString("21888242871839275222246405745257275088548364400416034343698204186575808495617", 10)
+	// if !ok {
+	// 	panic("bad rfield")
+	// }
 	initialMinimalBidding, ok := new(big.Int).SetString("10000000000000000000", 10) // 10 * (1e18)
 	if !ok {
 		panic("bad initialMinimalBidding")
@@ -624,8 +626,7 @@ func (c *Client) EthPendingNonceAt(ctx context.Context, account ethCommon.Addres
 
 // EthNonceAt returns the account nonce of the given account. The block number can
 // be nil, in which case the nonce is taken from the latest known block.
-func (c *Client) EthNonceAt(ctx context.Context, account ethCommon.Address,
+func (c *Client) EthNonceAt(ctx context.Context, account ethCommon.Address, blockNumber *big.Int) (uint64, error) {
-	blockNumber *big.Int) (uint64, error) {
 	// NOTE: For now Client doesn't simulate nonces
 	return 0, nil
 }
@@ -644,8 +645,7 @@ func (c *Client) EthKeyStore() *ethKeystore.KeyStore {
 
 // EthCall runs the transaction as a call (without paying) in the local node at
 // blockNum.
-func (c *Client) EthCall(ctx context.Context, tx *types.Transaction,
+func (c *Client) EthCall(ctx context.Context, tx *types.Transaction, blockNum *big.Int) ([]byte, error) {
-	blockNum *big.Int) ([]byte, error) {
 	return nil, tracerr.Wrap(common.ErrTODO)
 }
 
@@ -662,8 +662,7 @@ func (c *Client) EthLastBlock() (int64, error) {
 }
 
 // EthTransactionReceipt returns the transaction receipt of the given txHash
-func (c *Client) EthTransactionReceipt(ctx context.Context,
+func (c *Client) EthTransactionReceipt(ctx context.Context, txHash ethCommon.Hash) (*types.Receipt, error) {
-	txHash ethCommon.Hash) (*types.Receipt, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
@@ -779,9 +778,7 @@ var errTODO = fmt.Errorf("TODO: Not implemented yet")
 // }
 
 // RollupL1UserTxERC20Permit is the interface to call the smart contract function
-func (c *Client) RollupL1UserTxERC20Permit(fromBJJ babyjub.PublicKeyComp, fromIdx int64,
+func (c *Client) RollupL1UserTxERC20Permit(fromBJJ babyjub.PublicKeyComp, fromIdx int64, depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64, deadline *big.Int) (tx *types.Transaction, err error) {
-	depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64,
-	deadline *big.Int) (tx *types.Transaction, err error) {
 	log.Error("TODO")
 	return nil, tracerr.Wrap(errTODO)
 }
@@ -848,9 +845,7 @@ func (c *Client) RollupL1UserTxERC20ETH(
 }
 
 // RollupL1UserTxERC777 is the interface to call the smart contract function
-// func (c *Client) RollupL1UserTxERC777(fromBJJ *babyjub.PublicKey, fromIdx int64,
+// func (c *Client) RollupL1UserTxERC777(fromBJJ *babyjub.PublicKey, fromIdx int64, depositAmount *big.Int, amount *big.Int, tokenID uint32, toIdx int64) (*types.Transaction, error) {
-// 	depositAmount *big.Int, amount *big.Int, tokenID uint32,
-//	toIdx int64) (*types.Transaction, error) {
 // 	log.Error("TODO")
 // 	return nil, errTODO
 // }
@@ -872,17 +867,13 @@ func (c *Client) RollupLastForgedBatch() (int64, error) {
 }
 
 // RollupWithdrawCircuit is the interface to call the smart contract function
-func (c *Client) RollupWithdrawCircuit(proofA, proofC [2]*big.Int, proofB [2][2]*big.Int,
+func (c *Client) RollupWithdrawCircuit(proofA, proofC [2]*big.Int, proofB [2][2]*big.Int, tokenID uint32, numExitRoot, idx int64, amount *big.Int, instantWithdraw bool) (*types.Transaction, error) {
-	tokenID uint32, numExitRoot, idx int64, amount *big.Int,
-	instantWithdraw bool) (*types.Transaction, error) {
 	log.Error("TODO")
 	return nil, tracerr.Wrap(errTODO)
 }
 
 // RollupWithdrawMerkleProof is the interface to call the smart contract function
-func (c *Client) RollupWithdrawMerkleProof(babyPubKey babyjub.PublicKeyComp,
+func (c *Client) RollupWithdrawMerkleProof(babyPubKey babyjub.PublicKeyComp, tokenID uint32, numExitRoot, idx int64, amount *big.Int, siblings []*big.Int, instantWithdraw bool) (tx *types.Transaction, err error) {
-	tokenID uint32, numExitRoot, idx int64, amount *big.Int, siblings []*big.Int,
-	instantWithdraw bool) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -954,8 +945,7 @@ func (c *Client) newTransaction(name string, value interface{}) *types.Transacti
 }
 
 // RollupForgeBatch is the interface to call the smart contract function
-func (c *Client) RollupForgeBatch(args *eth.RollupForgeBatchArgs,
+func (c *Client) RollupForgeBatch(args *eth.RollupForgeBatchArgs, auth *bind.TransactOpts) (tx *types.Transaction, err error) {
-	auth *bind.TransactOpts) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -983,8 +973,7 @@ func (c *Client) RollupForgeBatch(args *eth.RollupForgeBatchArgs,
 
 	// TODO: If successful, store the tx in a successful array.
 	// TODO: If failed, store the tx in a failed array.
-	// TODO: Add method to move the tx to another block, reapply it there, and possibly go from
+	// TODO: Add method to move the tx to another block, reapply it there, and possibly go from successful to failed.
-	// successful to failed.
 
 	return c.addBatch(args)
 }
@@ -1029,8 +1018,7 @@ func (c *Client) addBatch(args *eth.RollupForgeBatchArgs) (*types.Transaction, e
 
 // RollupAddTokenSimple is a wrapper around RollupAddToken that automatically
 // sets `deadlie`.
-func (c *Client) RollupAddTokenSimple(tokenAddress ethCommon.Address,
+func (c *Client) RollupAddTokenSimple(tokenAddress ethCommon.Address, feeAddToken *big.Int) (tx *types.Transaction, err error) {
-	feeAddToken *big.Int) (tx *types.Transaction, err error) {
 	return c.RollupAddToken(tokenAddress, feeAddToken, big.NewInt(9999)) //nolint:gomnd
 }
 
@@ -1051,16 +1039,13 @@ func (c *Client) RollupAddToken(tokenAddress ethCommon.Address, feeAddToken *big
 		return nil, tracerr.Wrap(fmt.Errorf("Token %v already registered", tokenAddress))
 	}
 	if feeAddToken.Cmp(r.Vars.FeeAddToken) != 0 {
-		return nil,
+		return nil, tracerr.Wrap(fmt.Errorf("Expected fee: %v but got: %v", r.Vars.FeeAddToken, feeAddToken))
-			tracerr.Wrap(fmt.Errorf("Expected fee: %v but got: %v",
-				r.Vars.FeeAddToken, feeAddToken))
 	}
 
 	r.State.TokenMap[tokenAddress] = true
 	r.State.TokenList = append(r.State.TokenList, tokenAddress)
-	r.Events.AddToken = append(r.Events.AddToken, eth.RollupEventAddToken{
+	r.Events.AddToken = append(r.Events.AddToken, eth.RollupEventAddToken{TokenAddress: tokenAddress,
-		TokenAddress: tokenAddress,
+		TokenID: uint32(len(r.State.TokenList) - 1)})
-		TokenID:      uint32(len(r.State.TokenList) - 1)})
 	return r.addTransaction(c.newTransaction("addtoken", tokenAddress)), nil
 }
 
@@ -1074,8 +1059,7 @@ func (c *Client) RollupGetCurrentTokens() (*big.Int, error) {
 }
 
 // RollupUpdateForgeL1L2BatchTimeout is the interface to call the smart contract function
-func (c *Client) RollupUpdateForgeL1L2BatchTimeout(newForgeL1Timeout int64) (tx *types.Transaction,
+func (c *Client) RollupUpdateForgeL1L2BatchTimeout(newForgeL1Timeout int64) (tx *types.Transaction, err error) {
-	err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1094,8 +1078,7 @@ func (c *Client) RollupUpdateForgeL1L2BatchTimeout(newForgeL1Timeout int64) (tx
 }
 
 // RollupUpdateFeeAddToken is the interface to call the smart contract function
-func (c *Client) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (tx *types.Transaction,
+func (c *Client) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (tx *types.Transaction, err error) {
-	err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1109,8 +1092,7 @@ func (c *Client) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (tx *types.Tra
 }
 
 // RollupUpdateTokensHEZ is the interface to call the smart contract function
-// func (c *Client) RollupUpdateTokensHEZ(newTokenHEZ ethCommon.Address) (tx *types.Transaction,
+// func (c *Client) RollupUpdateTokensHEZ(newTokenHEZ ethCommon.Address) (tx *types.Transaction, err error) {
-// 	err error) {
 // 	c.rw.Lock()
 // 	defer c.rw.Unlock()
 // 	cpy := c.nextBlock().copy()
@@ -1121,8 +1103,7 @@ func (c *Client) RollupUpdateFeeAddToken(newFeeAddToken *big.Int) (tx *types.Tra
 // }
 
 // RollupUpdateGovernance is the interface to call the smart contract function
-// func (c *Client) RollupUpdateGovernance() (*types.Transaction, error) {
+// func (c *Client) RollupUpdateGovernance() (*types.Transaction, error) { // TODO (Not defined in Hermez.sol)
-// 	// TODO (Not defined in Hermez.sol)
 // 	return nil, errTODO
 // }
 
@@ -1161,10 +1142,8 @@ func (c *Client) RollupEventInit() (*eth.RollupEventInitialize, int64, error) {
 	}, 1, nil
 }
 
-// RollupForgeBatchArgs returns the arguments used in a ForgeBatch call in the Rollup Smart Contract
+// RollupForgeBatchArgs returns the arguments used in a ForgeBatch call in the Rollup Smart Contract in the given transaction
-// in the given transaction
+func (c *Client) RollupForgeBatchArgs(ethTxHash ethCommon.Hash, l1UserTxsLen uint16) (*eth.RollupForgeBatchArgs, *ethCommon.Address, error) {
-func (c *Client) RollupForgeBatchArgs(ethTxHash ethCommon.Hash,
-	l1UserTxsLen uint16) (*eth.RollupForgeBatchArgs, *ethCommon.Address, error) {
 	c.rw.RLock()
 	defer c.rw.RUnlock()
 
@@ -1203,8 +1182,7 @@ func (c *Client) AuctionGetSlotDeadline() (uint8, error) {
 }
 
 // AuctionSetOpenAuctionSlots is the interface to call the smart contract function
-func (c *Client) AuctionSetOpenAuctionSlots(newOpenAuctionSlots uint16) (tx *types.Transaction,
+func (c *Client) AuctionSetOpenAuctionSlots(newOpenAuctionSlots uint16) (tx *types.Transaction, err error) {
-	err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1232,8 +1210,7 @@ func (c *Client) AuctionGetOpenAuctionSlots() (uint16, error) {
 }
 
 // AuctionSetClosedAuctionSlots is the interface to call the smart contract function
-func (c *Client) AuctionSetClosedAuctionSlots(newClosedAuctionSlots uint16) (tx *types.Transaction,
+func (c *Client) AuctionSetClosedAuctionSlots(newClosedAuctionSlots uint16) (tx *types.Transaction, err error) {
-	err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1279,8 +1256,7 @@ func (c *Client) AuctionGetOutbidding() (uint16, error) {
 }
 
 // AuctionSetAllocationRatio is the interface to call the smart contract function
-func (c *Client) AuctionSetAllocationRatio(newAllocationRatio [3]uint16) (tx *types.Transaction,
+func (c *Client) AuctionSetAllocationRatio(newAllocationRatio [3]uint16) (tx *types.Transaction, err error) {
-	err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1303,8 +1279,7 @@ func (c *Client) AuctionGetAllocationRatio() ([3]uint16, error) {
 }
 
 // AuctionSetDonationAddress is the interface to call the smart contract function
-func (c *Client) AuctionSetDonationAddress(
+func (c *Client) AuctionSetDonationAddress(newDonationAddress ethCommon.Address) (tx *types.Transaction, err error) {
-	newDonationAddress ethCommon.Address) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1327,8 +1302,7 @@ func (c *Client) AuctionGetDonationAddress() (*ethCommon.Address, error) {
 }
 
 // AuctionSetBootCoordinator is the interface to call the smart contract function
-func (c *Client) AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address,
+func (c *Client) AuctionSetBootCoordinator(newBootCoordinator ethCommon.Address, newBootCoordinatorURL string) (tx *types.Transaction, err error) {
-	newBootCoordinatorURL string) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1353,8 +1327,7 @@ func (c *Client) AuctionGetBootCoordinator() (*ethCommon.Address, error) {
 }
 
 // AuctionChangeDefaultSlotSetBid is the interface to call the smart contract function
-func (c *Client) AuctionChangeDefaultSlotSetBid(slotSet int64,
+func (c *Client) AuctionChangeDefaultSlotSetBid(slotSet int64, newInitialMinBid *big.Int) (tx *types.Transaction, err error) {
-	newInitialMinBid *big.Int) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1368,8 +1341,7 @@ func (c *Client) AuctionChangeDefaultSlotSetBid(slotSet int64,
 }
 
 // AuctionSetCoordinator is the interface to call the smart contract function
-func (c *Client) AuctionSetCoordinator(forger ethCommon.Address,
+func (c *Client) AuctionSetCoordinator(forger ethCommon.Address, URL string) (tx *types.Transaction, err error) {
-	URL string) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1398,8 +1370,7 @@ func (c *Client) AuctionSetCoordinator(forger ethCommon.Address,
 		ForgerAddress ethCommon.Address
 		URL           string
 	}
-	return a.addTransaction(c.newTransaction("registercoordinator", data{*c.addr, forger, URL})),
+	return a.addTransaction(c.newTransaction("registercoordinator", data{*c.addr, forger, URL})), nil
-		nil
 }
 
 // AuctionIsRegisteredCoordinator is the interface to call the smart contract function
@@ -1412,8 +1383,7 @@ func (c *Client) AuctionIsRegisteredCoordinator(forgerAddress ethCommon.Address)
 }
 
 // AuctionUpdateCoordinatorInfo is the interface to call the smart contract function
-func (c *Client) AuctionUpdateCoordinatorInfo(forgerAddress ethCommon.Address,
+func (c *Client) AuctionUpdateCoordinatorInfo(forgerAddress ethCommon.Address, newWithdrawAddress ethCommon.Address, newURL string) (tx *types.Transaction, err error) {
-	newWithdrawAddress ethCommon.Address, newURL string) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1473,14 +1443,12 @@ func (c *Client) AuctionGetSlotSet(slot int64) (*big.Int, error) {
 }
 
 // AuctionTokensReceived is the interface to call the smart contract function
-// func (c *Client) AuctionTokensReceived(operator, from, to ethCommon.Address, amount *big.Int,
+// func (c *Client) AuctionTokensReceived(operator, from, to ethCommon.Address, amount *big.Int, userData, operatorData []byte) error {
-// 	userData, operatorData []byte) error {
 // 	return errTODO
 // }
 
 // AuctionBidSimple is a wrapper around AuctionBid that automatically sets `amount` and `deadline`.
-func (c *Client) AuctionBidSimple(slot int64, bidAmount *big.Int) (tx *types.Transaction,
+func (c *Client) AuctionBidSimple(slot int64, bidAmount *big.Int) (tx *types.Transaction, err error) {
-	err error) {
 	return c.AuctionBid(bidAmount, slot, bidAmount, big.NewInt(99999)) //nolint:gomnd
 }
 
@@ -1503,8 +1471,7 @@ func (c *Client) AuctionBid(amount *big.Int, slot int64, bidAmount *big.Int,
 		return nil, tracerr.Wrap(errBidClosed)
 	}
 
-	if slot >
+	if slot > a.getCurrentSlotNumber()+int64(a.Vars.ClosedAuctionSlots)+int64(a.Vars.OpenAuctionSlots) {
-		a.getCurrentSlotNumber()+int64(a.Vars.ClosedAuctionSlots)+int64(a.Vars.OpenAuctionSlots) {
 		return nil, tracerr.Wrap(errBidNotOpen)
 	}
 
@@ -1541,8 +1508,8 @@ func (c *Client) AuctionBid(amount *big.Int, slot int64, bidAmount *big.Int,
 
 // AuctionMultiBid is the interface to call the smart contract function.  This
 // implementation behaves as if any address has infinite tokens.
-func (c *Client) AuctionMultiBid(amount *big.Int, startingSlot int64, endingSlot int64,
+func (c *Client) AuctionMultiBid(amount *big.Int, startingSlot int64, endingSlot int64, slotSet [6]bool,
-	slotSet [6]bool, maxBid, closedMinBid, deadline *big.Int) (tx *types.Transaction, err error) {
+	maxBid, closedMinBid, deadline *big.Int) (tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1656,8 +1623,7 @@ func (c *Client) WDelayerGetHermezGovernanceAddress() (*ethCommon.Address, error
 }
 
 // WDelayerTransferGovernance is the interface to call the smart contract function
-func (c *Client) WDelayerTransferGovernance(newAddress ethCommon.Address) (tx *types.Transaction,
+func (c *Client) WDelayerTransferGovernance(newAddress ethCommon.Address) (tx *types.Transaction, err error) {
-	err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1694,8 +1660,7 @@ func (c *Client) WDelayerGetEmergencyCouncil() (*ethCommon.Address, error) {
 }
 
 // WDelayerTransferEmergencyCouncil is the interface to call the smart contract function
-func (c *Client) WDelayerTransferEmergencyCouncil(newAddress ethCommon.Address) (
+func (c *Client) WDelayerTransferEmergencyCouncil(newAddress ethCommon.Address) (tx *types.Transaction, err error) {
-	tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1764,8 +1729,7 @@ func (c *Client) WDelayerEnableEmergencyMode() (tx *types.Transaction, err error
 }
 
 // WDelayerChangeWithdrawalDelay is the interface to call the smart contract function
-func (c *Client) WDelayerChangeWithdrawalDelay(newWithdrawalDelay uint64) (tx *types.Transaction,
+func (c *Client) WDelayerChangeWithdrawalDelay(newWithdrawalDelay uint64) (tx *types.Transaction, err error) {
-	err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1793,8 +1757,7 @@ func (c *Client) WDelayerDepositInfo(owner, token ethCommon.Address) (eth.Deposi
 }
 
 // WDelayerDeposit is the interface to call the smart contract function
-func (c *Client) WDelayerDeposit(onwer, token ethCommon.Address, amount *big.Int) (
+func (c *Client) WDelayerDeposit(onwer, token ethCommon.Address, amount *big.Int) (tx *types.Transaction, err error) {
-	tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1808,8 +1771,7 @@ func (c *Client) WDelayerDeposit(onwer, token ethCommon.Address, amount *big.Int
 }
 
 // WDelayerWithdrawal is the interface to call the smart contract function
-func (c *Client) WDelayerWithdrawal(owner, token ethCommon.Address) (tx *types.Transaction,
+func (c *Client) WDelayerWithdrawal(owner, token ethCommon.Address) (tx *types.Transaction, err error) {
-	err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1823,8 +1785,7 @@ func (c *Client) WDelayerWithdrawal(owner, token ethCommon.Address) (tx *types.T
 }
 
 // WDelayerEscapeHatchWithdrawal is the interface to call the smart contract function
-func (c *Client) WDelayerEscapeHatchWithdrawal(to, token ethCommon.Address, amount *big.Int) (
+func (c *Client) WDelayerEscapeHatchWithdrawal(to, token ethCommon.Address, amount *big.Int) (tx *types.Transaction, err error) {
-	tx *types.Transaction, err error) {
 	c.rw.Lock()
 	defer c.rw.Unlock()
 	cpy := c.nextBlock().copy()
@@ -1882,31 +1843,25 @@ func (c *Client) CtlAddBlocks(blocks []common.BlockData) (err error) {
 		rollup := nextBlock.Rollup
 		auction := nextBlock.Auction
 		for _, token := range block.Rollup.AddedTokens {
-			if _, err := c.RollupAddTokenSimple(token.EthAddr,
+			if _, err := c.RollupAddTokenSimple(token.EthAddr, rollup.Vars.FeeAddToken); err != nil {
-				rollup.Vars.FeeAddToken); err != nil {
 				return tracerr.Wrap(err)
 			}
 		}
 		for _, tx := range block.Rollup.L1UserTxs {
 			c.CtlSetAddr(tx.FromEthAddr)
-			if _, err := c.RollupL1UserTxERC20ETH(tx.FromBJJ, int64(tx.FromIdx),
+			if _, err := c.RollupL1UserTxERC20ETH(tx.FromBJJ, int64(tx.FromIdx), tx.DepositAmount, tx.Amount,
-				tx.DepositAmount, tx.Amount, uint32(tx.TokenID),
+				uint32(tx.TokenID), int64(tx.ToIdx)); err != nil {
-				int64(tx.ToIdx)); err != nil {
 				return tracerr.Wrap(err)
 			}
 		}
 		c.CtlSetAddr(auction.Vars.BootCoordinator)
 		for _, batch := range block.Rollup.Batches {
-			auths := make([][]byte, len(batch.L1CoordinatorTxs))
-			for i := range auths {
-				auths[i] = make([]byte, 65)
-			}
 			if _, err := c.RollupForgeBatch(&eth.RollupForgeBatchArgs{
 				NewLastIdx:            batch.Batch.LastIdx,
 				NewStRoot:             batch.Batch.StateRoot,
 				NewExitRoot:           batch.Batch.ExitRoot,
 				L1CoordinatorTxs:      batch.L1CoordinatorTxs,
-				L1CoordinatorTxsAuths: auths,
+				L1CoordinatorTxsAuths: [][]byte{}, // Intentionally empty
 				L2TxsData:             batch.L2Txs,
 				FeeIdxCoordinator:     batch.Batch.FeeIdxsCoordinator,
 				// Circuit selector

test/ethclient_test.go

@@ -49,9 +49,7 @@ func TestClientEth(t *testing.T) {
 	require.Nil(t, err)
 	assert.Equal(t, int64(0), block.Num)
 	assert.Equal(t, time.Unix(0, 0), block.Timestamp)
-	assert.Equal(t,
+	assert.Equal(t, "0x0000000000000000000000000000000000000000000000000000000000000000", block.Hash.Hex())
-		"0x0000000000000000000000000000000000000000000000000000000000000000",
-		block.Hash.Hex())
 
 	// Mine some empty blocks
 

test/historydb.go

@@ -40,8 +40,7 @@ var EthToken common.Token = common.Token{
 // WARNING: the generators in this file doesn't necessary follow the protocol
 // they are intended to check that the parsers between struct <==> DB are correct
 
-// GenBlocks generates block from, to block numbers. WARNING: This is meant for DB/API testing, and
+// GenBlocks generates block from, to block numbers. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
-// may not be fully consistent with the protocol.
 func GenBlocks(from, to int64) []common.Block {
 	var blocks []common.Block
 	for i := from; i < to; i++ {
@@ -55,10 +54,8 @@ func GenBlocks(from, to int64) []common.Block {
 	return blocks
 }
 
-// GenTokens generates tokens. WARNING: This is meant for DB/API testing, and may not be fully
+// GenTokens generates tokens. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
-// consistent with the protocol.
+func GenTokens(nTokens int, blocks []common.Block) (tokensToAddInDB []common.Token, ethToken common.Token) {
-func GenTokens(nTokens int, blocks []common.Block) (tokensToAddInDB []common.Token,
-	ethToken common.Token) {
 	tokensToAddInDB = []common.Token{}
 	for i := 1; i < nTokens; i++ {
 		token := common.Token{
@@ -81,8 +78,7 @@ func GenTokens(nTokens int, blocks []common.Block) (tokensToAddInDB []common.Tok
 	}
 }
 
-// GenBatches generates batches. WARNING: This is meant for DB/API testing, and may not be fully
+// GenBatches generates batches. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
-// consistent with the protocol.
 func GenBatches(nBatches int, blocks []common.Block) []common.Batch {
 	batches := []common.Batch{}
 	collectedFees := make(map[common.TokenID]*big.Int)
@@ -112,10 +108,8 @@ func GenBatches(nBatches int, blocks []common.Block) []common.Batch {
 	return batches
 }
 
-// GenAccounts generates accounts. WARNING: This is meant for DB/API testing, and may not be fully
+// GenAccounts generates accounts. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
-// consistent with the protocol.
+func GenAccounts(totalAccounts, userAccounts int, tokens []common.Token, userAddr *ethCommon.Address, userBjj *babyjub.PublicKey, batches []common.Batch) []common.Account {
-func GenAccounts(totalAccounts, userAccounts int, tokens []common.Token,
-	userAddr *ethCommon.Address, userBjj *babyjub.PublicKey, batches []common.Batch) []common.Account {
 	if totalAccounts < userAccounts {
 		panic("totalAccounts must be greater than userAccounts")
 	}
@@ -143,8 +137,7 @@ func GenAccounts(totalAccounts, userAccounts int, tokens []common.Token,
 	return accs
 }
 
-// GenL1Txs generates L1 txs. WARNING: This is meant for DB/API testing, and may not be fully
+// GenL1Txs generates L1 txs. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
-// consistent with the protocol.
 func GenL1Txs(
 	fromIdx int,
 	totalTxs, nUserTxs int,
@@ -270,8 +263,7 @@ func setFromToAndAppend(
 	}
 }
 
-// GenL2Txs generates L2 txs. WARNING: This is meant for DB/API testing, and may not be fully
+// GenL2Txs generates L2 txs. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
-// consistent with the protocol.
 func GenL2Txs(
 	fromIdx int,
 	totalTxs, nUserTxs int,
@@ -290,9 +282,7 @@ func GenL2Txs(
 		amount := big.NewInt(int64(i + 1))
 		fee := common.FeeSelector(i % 256) //nolint:gomnd
 		tx := common.L2Tx{
-			// only for testing purposes
+			TxID:        common.TxID([common.TxIDLen]byte{2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, byte(i)}), // only for testing purposes
-			TxID: common.TxID([common.TxIDLen]byte{2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-				0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, byte(i)}),
 			BatchNum:    batches[i%len(batches)].BatchNum,
 			Position:    i - fromIdx,
 			Amount:      amount,
@@ -347,8 +337,7 @@ func GenL2Txs(
 	return userTxs, othersTxs
 }
 
-// GenCoordinators generates coordinators. WARNING: This is meant for DB/API testing, and may not be
+// GenCoordinators generates coordinators. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
-// fully consistent with the protocol.
 func GenCoordinators(nCoords int, blocks []common.Block) []common.Coordinator {
 	coords := []common.Coordinator{}
 	for i := 0; i < nCoords; i++ {
@@ -362,8 +351,7 @@ func GenCoordinators(nCoords int, blocks []common.Block) []common.Coordinator {
 	return coords
 }
 
-// GenBids generates bids. WARNING: This is meant for DB/API testing, and may not be fully
+// GenBids generates bids. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
-// consistent with the protocol.
 func GenBids(nBids int, blocks []common.Block, coords []common.Coordinator) []common.Bid {
 	bids := []common.Bid{}
 	for i := 0; i < nBids*2; i = i + 2 { //nolint:gomnd
@@ -385,8 +373,7 @@ func GenBids(nBids int, blocks []common.Block, coords []common.Coordinator) []co
 
 // GenExitTree generates an exitTree (as an array of Exits)
 //nolint:gomnd
-func GenExitTree(n int, batches []common.Batch, accounts []common.Account,
+func GenExitTree(n int, batches []common.Batch, accounts []common.Account, blocks []common.Block) []common.ExitInfo {
-	blocks []common.Block) []common.ExitInfo {
 	exitTree := make([]common.ExitInfo, n)
 	for i := 0; i < n; i++ {
 		exitTree[i] = common.ExitInfo{
@@ -425,8 +412,7 @@ func GenExitTree(n int, batches []common.Batch, accounts []common.Account,
 	return exitTree
 }
 
-func randomAccount(seed int, userAccount bool, userAddr *ethCommon.Address,
+func randomAccount(seed int, userAccount bool, userAddr *ethCommon.Address, accs []common.Account) (*common.Account, error) {
-	accs []common.Account) (*common.Account, error) {
 	i := seed % len(accs)
 	firstI := i
 	for {

test/l2db.go

@@ -67,8 +67,7 @@ func GenPoolTxs(n int, tokens []common.Token) []*common.PoolL2Tx {
 }
 
 // GenAuths generates account creation authorizations
-func GenAuths(nAuths int, chainID uint16,
+func GenAuths(nAuths int, chainID uint16, hermezContractAddr ethCommon.Address) []*common.AccountCreationAuth {
-	hermezContractAddr ethCommon.Address) []*common.AccountCreationAuth {
 	auths := []*common.AccountCreationAuth{}
 	for i := 0; i < nAuths; i++ {
 		// Generate keys

test/proofserver/proofserver.go

@@ -68,7 +68,6 @@ func (s *Mock) handleCancel(c *gin.Context) {
 	c.JSON(http.StatusOK, "OK")
 }
 
-//nolint:lll
 /* Status example from the real server proof:
 
 Status:

test/til/lang.go

@@ -310,8 +310,7 @@ func (p *parser) parseLine(setType setType) (*Instruction, error) {
 		} else if lit == "PoolL2" {
 			return &Instruction{Typ: "PoolL2"}, setTypeLine
 		} else {
-			return c,
+			return c, tracerr.Wrap(fmt.Errorf("Invalid set type: '%s'. Valid set types: 'Blockchain', 'PoolL2'", lit))
-				tracerr.Wrap(fmt.Errorf("Invalid set type: '%s'. Valid set types: 'Blockchain', 'PoolL2'", lit))
 		}
 	} else if lit == "AddToken" {
 		if err := p.expectChar(c, "("); err != nil {
@@ -392,9 +391,7 @@ func (p *parser) parseLine(setType setType) (*Instruction, error) {
 			return c, tracerr.Wrap(fmt.Errorf("Unexpected PoolL2 tx type: %s", lit))
 		}
 	} else {
-		return c,
+		return c, tracerr.Wrap(fmt.Errorf("Invalid set type: '%s'. Valid set types: 'Blockchain', 'PoolL2'", setType))
-			tracerr.Wrap(fmt.Errorf("Invalid set type: '%s'. Valid set types: 'Blockchain', 'PoolL2'",
-				setType))
 	}
 
 	if err := p.expectChar(c, "("); err != nil {
@@ -525,18 +522,14 @@ func (p *parser) parse() (*parsedSet, error) {
 		}
 		if tracerr.Unwrap(err) == setTypeLine {
 			if ps.typ != "" {
-				return ps,
+				return ps, tracerr.Wrap(fmt.Errorf("Line %d: Instruction of 'Type: %s' when there is already a previous instruction 'Type: %s' defined", i, instruction.Typ, ps.typ))
-					tracerr.Wrap(fmt.Errorf("Line %d: Instruction of 'Type: %s' when "+
-						"there is already a previous instruction 'Type: %s' defined",
-						i, instruction.Typ, ps.typ))
 			}
 			if instruction.Typ == "PoolL2" {
 				ps.typ = SetTypePoolL2
 			} else if instruction.Typ == "Blockchain" {
 				ps.typ = SetTypeBlockchain
 			} else {
-				log.Fatalf("Line %d: Invalid set type: '%s'. Valid set types: "+
+				log.Fatalf("Line %d: Invalid set type: '%s'. Valid set types: 'Blockchain', 'PoolL2'", i, instruction.Typ)
-					"'Blockchain', 'PoolL2'", i, instruction.Typ)
 			}
 			continue
 		}
@@ -559,9 +552,7 @@ func (p *parser) parse() (*parsedSet, error) {
 		}
 		ps.instructions = append(ps.instructions, *instruction)
 		users[instruction.From] = true
-		if instruction.Typ == common.TxTypeTransfer ||
+		if instruction.Typ == common.TxTypeTransfer || instruction.Typ == common.TxTypeTransferToEthAddr || instruction.Typ == common.TxTypeTransferToBJJ { // type: Transfer
-			instruction.Typ == common.TxTypeTransferToEthAddr ||
-			instruction.Typ == common.TxTypeTransferToBJJ { // type: Transfer
 			users[instruction.To] = true
 		}
 	}

test/til/lang_test.go

@@ -72,19 +72,12 @@ func TestParseBlockchainTxs(t *testing.T) {
 	assert.Equal(t, TxTypeCreateAccountDepositCoordinator, instructions.instructions[7].Typ)
 	assert.Equal(t, TypeNewBatch, instructions.instructions[11].Typ)
 	assert.Equal(t, "Deposit(1)User0:20", instructions.instructions[16].raw())
-	assert.Equal(t,
+	assert.Equal(t, "Type: DepositTransfer, From: A, To: B, DepositAmount: 15, Amount: 10, Fee: 0, TokenID: 1\n", instructions.instructions[13].String())
-		"Type: DepositTransfer, From: A, To: B, DepositAmount: 15, Amount: 10, Fee: 0, TokenID: 1\n",
+	assert.Equal(t, "Type: Transfer, From: User1, To: User0, Amount: 15, Fee: 1, TokenID: 3\n", instructions.instructions[19].String())
-		instructions.instructions[13].String())
-	assert.Equal(t,
-		"Type: Transfer, From: User1, To: User0, Amount: 15, Fee: 1, TokenID: 3\n",
-		instructions.instructions[19].String())
 	assert.Equal(t, "Transfer(2)A-B:15(1)", instructions.instructions[15].raw())
-	assert.Equal(t,
+	assert.Equal(t, "Type: Transfer, From: A, To: B, Amount: 15, Fee: 1, TokenID: 2\n", instructions.instructions[15].String())
-		"Type: Transfer, From: A, To: B, Amount: 15, Fee: 1, TokenID: 2\n",
-		instructions.instructions[15].String())
 	assert.Equal(t, "Exit(1)A:5", instructions.instructions[24].raw())
-	assert.Equal(t, "Type: Exit, From: A, Amount: 5, TokenID: 1\n",
+	assert.Equal(t, "Type: Exit, From: A, Amount: 5, TokenID: 1\n", instructions.instructions[24].String())
-		instructions.instructions[24].String())
 }
 
 func TestParsePoolTxs(t *testing.T) {
@@ -165,9 +158,7 @@ func TestParseErrors(t *testing.T) {
 	`
 	parser = newParser(strings.NewReader(s))
 	_, err = parser.parse()
-	assert.Equal(t,
+	assert.Equal(t, "Line 2: Transfer(1)A-B:10(256)\n, err: Fee 256 can not be bigger than 255", err.Error())
-		"Line 2: Transfer(1)A-B:10(256)\n, err: Fee 256 can not be bigger than 255",
-		err.Error())
 
 	// check that the PoolTransfer & Transfer are only accepted in the
 	// correct case case (PoolTxs/BlockchainTxs)
@@ -184,9 +175,7 @@ func TestParseErrors(t *testing.T) {
 	`
 	parser = newParser(strings.NewReader(s))
 	_, err = parser.parse()
-	assert.Equal(t,
+	assert.Equal(t, "Line 2: PoolTransfer, err: Unexpected Blockchain tx type: PoolTransfer", err.Error())
-		"Line 2: PoolTransfer, err: Unexpected Blockchain tx type: PoolTransfer",
-		err.Error())
 
 	s = `
 		Type: Blockchain
@@ -194,9 +183,7 @@ func TestParseErrors(t *testing.T) {
 	`
 	parser = newParser(strings.NewReader(s))
 	_, err = parser.parse()
-	assert.Equal(t,
+	assert.Equal(t, "Line 2: >, err: Unexpected '> btch', expected '> batch' or '> block'", err.Error())
-		"Line 2: >, err: Unexpected '> btch', expected '> batch' or '> block'",
-		err.Error())
 
 	// check definition of set Type
 	s = `PoolTransfer(1) A-B: 10 (1)`
@@ -206,23 +193,17 @@ func TestParseErrors(t *testing.T) {
 	s = `Type: PoolL1`
 	parser = newParser(strings.NewReader(s))
 	_, err = parser.parse()
-	assert.Equal(t,
+	assert.Equal(t, "Line 1: Type:, err: Invalid set type: 'PoolL1'. Valid set types: 'Blockchain', 'PoolL2'", err.Error())
-		"Line 1: Type:, err: Invalid set type: 'PoolL1'. Valid set types: 'Blockchain', 'PoolL2'",
-		err.Error())
 	s = `Type: PoolL1
 		Type: Blockchain`
 	parser = newParser(strings.NewReader(s))
 	_, err = parser.parse()
-	assert.Equal(t,
+	assert.Equal(t, "Line 1: Type:, err: Invalid set type: 'PoolL1'. Valid set types: 'Blockchain', 'PoolL2'", err.Error())
-		"Line 1: Type:, err: Invalid set type: 'PoolL1'. Valid set types: 'Blockchain', 'PoolL2'",
-		err.Error())
 	s = `Type: PoolL2
 		Type: Blockchain`
 	parser = newParser(strings.NewReader(s))
 	_, err = parser.parse()
-	assert.Equal(t,
+	assert.Equal(t, "Line 2: Instruction of 'Type: Blockchain' when there is already a previous instruction 'Type: PoolL2' defined", err.Error())
-		"Line 2: Instruction of 'Type: Blockchain' when there is already a previous "+
-			"instruction 'Type: PoolL2' defined", err.Error())
 
 	s = `Type: Blockchain
 		AddToken(1)

test/til/txs.go

@@ -161,9 +161,7 @@ func (tc *Context) GenerateBlocks(set string) ([]common.BlockData, error) {
 		return nil, tracerr.Wrap(err)
 	}
 	if parsedSet.typ != SetTypeBlockchain {
-		return nil,
+		return nil, tracerr.Wrap(fmt.Errorf("Expected set type: %s, found: %s", SetTypeBlockchain, parsedSet.typ))
-			tracerr.Wrap(fmt.Errorf("Expected set type: %s, found: %s",
-				SetTypeBlockchain, parsedSet.typ))
 	}
 
 	tc.instructions = parsedSet.instructions
@@ -211,9 +209,7 @@ func (tc *Context) generateBlocks() ([]common.BlockData, error) {
 				TokenID:       inst.TokenID,
 				Amount:        big.NewInt(0),
 				DepositAmount: big.NewInt(0),
-				// as TxTypeCreateAccountDepositCoordinator is
+				Type:          common.TxTypeCreateAccountDeposit, // as TxTypeCreateAccountDepositCoordinator is not valid oustide Til package
-				// not valid oustide Til package
-				Type: common.TxTypeCreateAccountDeposit,
 			}
 			testTx := L1Tx{
 				lineNum:     inst.LineNum,
@@ -222,8 +218,7 @@ func (tc *Context) generateBlocks() ([]common.BlockData, error) {
 			}
 
 			tc.currBatchTest.l1CoordinatorTxs = append(tc.currBatchTest.l1CoordinatorTxs, testTx)
-		case common.TxTypeCreateAccountDeposit, common.TxTypeCreateAccountDepositTransfer:
+		case common.TxTypeCreateAccountDeposit, common.TxTypeCreateAccountDepositTransfer: // tx source: L1UserTx
-			// tx source: L1UserTx
 			if err := tc.checkIfTokenIsRegistered(inst); err != nil {
 				log.Error(err)
 				return nil, tracerr.Wrap(fmt.Errorf("Line %d: %s", inst.LineNum, err.Error()))
@@ -286,8 +281,7 @@ func (tc *Context) generateBlocks() ([]common.BlockData, error) {
 				Type:        common.TxTypeTransfer,
 				EthBlockNum: tc.blockNum,
 			}
-			// when converted to PoolL2Tx BatchNum parameter is lost
+			tx.BatchNum = common.BatchNum(tc.currBatchNum) // when converted to PoolL2Tx BatchNum parameter is lost
-			tx.BatchNum = common.BatchNum(tc.currBatchNum)
 			testTx := L2Tx{
 				lineNum:     inst.LineNum,
 				fromIdxName: inst.From,
@@ -328,8 +322,7 @@ func (tc *Context) generateBlocks() ([]common.BlockData, error) {
 				Type:        common.TxTypeExit,
 				EthBlockNum: tc.blockNum,
 			}
-			// when converted to PoolL2Tx BatchNum parameter is lost
+			tx.BatchNum = common.BatchNum(tc.currBatchNum) // when converted to PoolL2Tx BatchNum parameter is lost
-			tx.BatchNum = common.BatchNum(tc.currBatchNum)
 			testTx := L2Tx{
 				lineNum:     inst.LineNum,
 				fromIdxName: inst.From,
@@ -402,10 +395,7 @@ func (tc *Context) generateBlocks() ([]common.BlockData, error) {
 				EthBlockNum: tc.blockNum,
 			}
 			if inst.TokenID != tc.LastRegisteredTokenID+1 {
-				return nil,
+				return nil, tracerr.Wrap(fmt.Errorf("Line %d: AddToken TokenID should be sequential, expected TokenID: %d, defined TokenID: %d", inst.LineNum, tc.LastRegisteredTokenID+1, inst.TokenID))
-					tracerr.Wrap(fmt.Errorf("Line %d: AddToken TokenID should be "+
-						"sequential, expected TokenID: %d, defined TokenID: %d",
-						inst.LineNum, tc.LastRegisteredTokenID+1, inst.TokenID))
 			}
 			tc.LastRegisteredTokenID++
 			tc.currBlock.Rollup.AddedTokens = append(tc.currBlock.Rollup.AddedTokens, newToken)
@@ -423,13 +413,9 @@ func (tc *Context) calculateIdxForL1Txs(isCoordinatorTxs bool, txs []L1Tx) error
 	// for each batch.L1CoordinatorTxs of the Queues[ToForgeNum], calculate the Idx
 	for i := 0; i < len(txs); i++ {
 		tx := txs[i]
-		if tx.L1Tx.Type == common.TxTypeCreateAccountDeposit ||
+		if tx.L1Tx.Type == common.TxTypeCreateAccountDeposit || tx.L1Tx.Type == common.TxTypeCreateAccountDepositTransfer {
-			tx.L1Tx.Type == common.TxTypeCreateAccountDepositTransfer {
+			if tc.Users[tx.fromIdxName].Accounts[tx.L1Tx.TokenID] != nil { // if account already exists, return error
-			if tc.Users[tx.fromIdxName].Accounts[tx.L1Tx.TokenID] != nil {
+				return tracerr.Wrap(fmt.Errorf("Can not create same account twice (same User (%s) & same TokenID (%d)) (this is a design property of Til)", tx.fromIdxName, tx.L1Tx.TokenID))
-				// if account already exists, return error
-				return tracerr.Wrap(fmt.Errorf("Can not create same account twice "+
-					"(same User (%s) & same TokenID (%d)) (this is a design property of Til)",
-					tx.fromIdxName, tx.L1Tx.TokenID))
 			}
 			tc.Users[tx.fromIdxName].Accounts[tx.L1Tx.TokenID] = &Account{
 				Idx:      common.Idx(tc.idx),
@@ -437,8 +423,7 @@ func (tc *Context) calculateIdxForL1Txs(isCoordinatorTxs bool, txs []L1Tx) error
 				Nonce:    common.Nonce(0),
 				BatchNum: tc.currBatchNum,
 			}
-			tc.l1CreatedAccounts[idxTokenIDToString(tx.fromIdxName, tx.L1Tx.TokenID)] =
+			tc.l1CreatedAccounts[idxTokenIDToString(tx.fromIdxName, tx.L1Tx.TokenID)] = tc.Users[tx.fromIdxName].Accounts[tx.L1Tx.TokenID]
-				tc.Users[tx.fromIdxName].Accounts[tx.L1Tx.TokenID]
 			tc.accountsByIdx[tc.idx] = tc.Users[tx.fromIdxName].Accounts[tx.L1Tx.TokenID]
 			tc.UsersByIdx[tc.idx] = tc.Users[tx.fromIdxName]
 			tc.idx++
@@ -457,15 +442,11 @@ func (tc *Context) setIdxs() error {
 		testTx := &tc.currBatchTest.l2Txs[i]
 
 		if tc.Users[testTx.fromIdxName].Accounts[testTx.tokenID] == nil {
-			return tracerr.Wrap(fmt.Errorf("Line %d: %s from User %s for TokenID %d "+
+			return tracerr.Wrap(fmt.Errorf("Line %d: %s from User %s for TokenID %d while account not created yet", testTx.lineNum, testTx.L2Tx.Type, testTx.fromIdxName, testTx.tokenID))
-				"while account not created yet",
-				testTx.lineNum, testTx.L2Tx.Type, testTx.fromIdxName, testTx.tokenID))
 		}
 		if testTx.L2Tx.Type == common.TxTypeTransfer {
 			if _, ok := tc.l1CreatedAccounts[idxTokenIDToString(testTx.toIdxName, testTx.tokenID)]; !ok {
-				return tracerr.Wrap(fmt.Errorf("Line %d: Can not create Transfer for a non "+
+				return tracerr.Wrap(fmt.Errorf("Line %d: Can not create Transfer for a non existing account. Batch %d, ToIdx name: %s, TokenID: %d", testTx.lineNum, tc.currBatchNum, testTx.toIdxName, testTx.tokenID))
-					"existing account. Batch %d, ToIdx name: %s, TokenID: %d",
-					testTx.lineNum, tc.currBatchNum, testTx.toIdxName, testTx.tokenID))
 			}
 		}
 		tc.Users[testTx.fromIdxName].Accounts[testTx.tokenID].Nonce++
@@ -517,8 +498,7 @@ func (tc *Context) addToL1UserQueue(tx L1Tx) error {
 	tx.L1Tx.Position = len(tc.Queues[tc.openToForge])
 
 	// When an L1UserTx is generated, all idxs must be available (except when idx == 0 or idx == 1)
-	if tx.L1Tx.Type != common.TxTypeCreateAccountDeposit &&
+	if tx.L1Tx.Type != common.TxTypeCreateAccountDeposit && tx.L1Tx.Type != common.TxTypeCreateAccountDepositTransfer {
-		tx.L1Tx.Type != common.TxTypeCreateAccountDepositTransfer {
 		tx.L1Tx.FromIdx = tc.Users[tx.fromIdxName].Accounts[tx.L1Tx.TokenID].Idx
 	}
 	tx.L1Tx.FromEthAddr = tc.Users[tx.fromIdxName].Addr
@@ -550,16 +530,14 @@ func (tc *Context) addToL1UserQueue(tx L1Tx) error {
 
 func (tc *Context) checkIfAccountExists(tf string, inst Instruction) error {
 	if tc.Users[tf].Accounts[inst.TokenID] == nil {
-		return tracerr.Wrap(fmt.Errorf("%s at User: %s, for TokenID: %d, while account not created yet",
+		return tracerr.Wrap(fmt.Errorf("%s at User: %s, for TokenID: %d, while account not created yet", inst.Typ, tf, inst.TokenID))
-			inst.Typ, tf, inst.TokenID))
 	}
 	return nil
 }
 
 func (tc *Context) checkIfTokenIsRegistered(inst Instruction) error {
 	if inst.TokenID > tc.LastRegisteredTokenID {
-		return tracerr.Wrap(fmt.Errorf("Can not process %s: TokenID %d not registered, "+
+		return tracerr.Wrap(fmt.Errorf("Can not process %s: TokenID %d not registered, last registered TokenID: %d", inst.Typ, inst.TokenID, tc.LastRegisteredTokenID))
-			"last registered TokenID: %d", inst.Typ, inst.TokenID, tc.LastRegisteredTokenID))
 	}
 	return nil
 }
@@ -573,8 +551,7 @@ func (tc *Context) GeneratePoolL2Txs(set string) ([]common.PoolL2Tx, error) {
 		return nil, tracerr.Wrap(err)
 	}
 	if parsedSet.typ != SetTypePoolL2 {
-		return nil, tracerr.Wrap(fmt.Errorf("Expected set type: %s, found: %s",
+		return nil, tracerr.Wrap(fmt.Errorf("Expected set type: %s, found: %s", SetTypePoolL2, parsedSet.typ))
-			SetTypePoolL2, parsedSet.typ))
 	}
 
 	tc.instructions = parsedSet.instructions
@@ -691,9 +668,7 @@ func (tc *Context) generatePoolL2Txs() ([]common.PoolL2Tx, error) {
 			tx.Signature = sig.Compress()
 			txs = append(txs, tx)
 		default:
-			return nil,
+			return nil, tracerr.Wrap(fmt.Errorf("Line %d: instruction type unrecognized: %s", inst.LineNum, inst.Typ))
-				tracerr.Wrap(fmt.Errorf("Line %d: instruction type unrecognized: %s",
-					inst.LineNum, inst.Typ))
 		}
 	}
 

test/til/txs_test.go

@@ -119,66 +119,49 @@ func TestGenerateBlocks(t *testing.T) {
 
 	// Check expected values generated by each line
 	// #0: Deposit(1) A: 10
-	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[0], common.TxTypeCreateAccountDeposit, 1,
+	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[0], common.TxTypeCreateAccountDeposit, 1, "A", "", big.NewInt(10), nil)
-		"A", "", big.NewInt(10), nil)
 	// #1: Deposit(2) A: 20
-	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[1], common.TxTypeCreateAccountDeposit, 2,
+	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[1], common.TxTypeCreateAccountDeposit, 2, "A", "", big.NewInt(20), nil)
-		"A", "", big.NewInt(20), nil)
 	// // #2: Deposit(1) A: 20
-	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[2], common.TxTypeCreateAccountDeposit, 1,
+	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[2], common.TxTypeCreateAccountDeposit, 1, "B", "", big.NewInt(5), nil)
-		"B", "", big.NewInt(5), nil)
 	// // #3: CreateAccountDeposit(1) C: 5
-	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[3], common.TxTypeCreateAccountDeposit, 1,
+	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[3], common.TxTypeCreateAccountDeposit, 1, "C", "", big.NewInt(5), nil)
-		"C", "", big.NewInt(5), nil)
 	// // #4: CreateAccountDeposit(1) D: 5
-	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[4], common.TxTypeCreateAccountDeposit, 1,
+	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[4], common.TxTypeCreateAccountDeposit, 1, "D", "", big.NewInt(5), nil)
-		"D", "", big.NewInt(5), nil)
 	// #5: Transfer(1) A-B: 6 (1)
-	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[2].L2Txs[0], common.TxTypeTransfer, 1, "A",
+	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[2].L2Txs[0], common.TxTypeTransfer, 1, "A", "B", big.NewInt(6), common.BatchNum(3))
-		"B", big.NewInt(6), common.BatchNum(3))
 	// #6: Transfer(1) B-D: 3 (1)
-	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[2].L2Txs[1], common.TxTypeTransfer, 1, "B",
+	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[2].L2Txs[1], common.TxTypeTransfer, 1, "B", "D", big.NewInt(3), common.BatchNum(3))
-		"D", big.NewInt(3), common.BatchNum(3))
 	// #7: Transfer(1) A-D: 1 (1)
-	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[2].L2Txs[2], common.TxTypeTransfer, 1, "A",
+	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[2].L2Txs[2], common.TxTypeTransfer, 1, "A", "D", big.NewInt(1), common.BatchNum(3))
-		"D", big.NewInt(1), common.BatchNum(3))
+	// change of Batch
-	// change of Batch #8: CreateAccountDepositTransfer(1) F-A: 15, 10 (3)
+	// #8: CreateAccountDepositTransfer(1) F-A: 15, 10 (3)
-	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[5],
+	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[5], common.TxTypeCreateAccountDepositTransfer, 1, "F", "A", big.NewInt(15), big.NewInt(10))
-		common.TxTypeCreateAccountDepositTransfer, 1, "F", "A", big.NewInt(15), big.NewInt(10))
 	// #9: DepositTransfer(1) A-B: 15, 10 (1)
-	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[6], common.TxTypeDepositTransfer, 1, "A",
+	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[6], common.TxTypeDepositTransfer, 1, "A", "B", big.NewInt(15), big.NewInt(10))
-		"B", big.NewInt(15), big.NewInt(10))
 	// #11: Transfer(1) C-A : 3 (1)
-	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[3].L2Txs[0], common.TxTypeTransfer, 1, "C",
+	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[3].L2Txs[0], common.TxTypeTransfer, 1, "C", "A", big.NewInt(3), common.BatchNum(4))
-		"A", big.NewInt(3), common.BatchNum(4))
 	// #12: Transfer(2) A-B: 15 (1)
-	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[3].L2Txs[1], common.TxTypeTransfer, 2, "A",
+	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[3].L2Txs[1], common.TxTypeTransfer, 2, "A", "B", big.NewInt(15), common.BatchNum(4))
-		"B", big.NewInt(15), common.BatchNum(4))
 	// #13: Deposit(1) User0: 20
-	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[7], common.TxTypeCreateAccountDeposit, 1,
+	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[7], common.TxTypeCreateAccountDeposit, 1, "User0", "", big.NewInt(20), nil)
-		"User0", "", big.NewInt(20), nil)
 	// // #14: Deposit(3) User1: 20
-	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[8], common.TxTypeCreateAccountDeposit, 3,
+	tc.checkL1TxParams(t, blocks[0].Rollup.L1UserTxs[8], common.TxTypeCreateAccountDeposit, 3, "User1", "", big.NewInt(20), nil)
-		"User1", "", big.NewInt(20), nil)
 	// #15: Transfer(1) User0-User1: 15 (1)
-	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[4].L2Txs[0], common.TxTypeTransfer, 1,
+	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[4].L2Txs[0], common.TxTypeTransfer, 1, "User0", "User1", big.NewInt(15), common.BatchNum(5))
-		"User0", "User1", big.NewInt(15), common.BatchNum(5))
 	// #16: Transfer(3) User1-User0: 15 (1)
-	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[4].L2Txs[1], common.TxTypeTransfer, 3,
+	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[4].L2Txs[1], common.TxTypeTransfer, 3, "User1", "User0", big.NewInt(15), common.BatchNum(5))
-		"User1", "User0", big.NewInt(15), common.BatchNum(5))
 	// #17: Transfer(1) A-C: 1 (1)
-	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[4].L2Txs[2], common.TxTypeTransfer, 1, "A",
+	tc.checkL2TxParams(t, blocks[0].Rollup.Batches[4].L2Txs[2], common.TxTypeTransfer, 1, "A", "C", big.NewInt(1), common.BatchNum(5))
-		"C", big.NewInt(1), common.BatchNum(5))
+	// change of Batch
-	// change of Batch #18: Transfer(1) User1-User0: 1 (1)
+	// #18: Transfer(1) User1-User0: 1 (1)
-	tc.checkL2TxParams(t, blocks[1].Rollup.Batches[0].L2Txs[0], common.TxTypeTransfer, 1,
+	tc.checkL2TxParams(t, blocks[1].Rollup.Batches[0].L2Txs[0], common.TxTypeTransfer, 1, "User1", "User0", big.NewInt(1), common.BatchNum(6))
-		"User1", "User0", big.NewInt(1), common.BatchNum(6))
+	// change of Block (implies also a change of batch)
-	// change of Block (implies also a change of batch) #19: Transfer(1) A-B: 1 (1)
+	// #19: Transfer(1) A-B: 1 (1)
-	tc.checkL2TxParams(t, blocks[1].Rollup.Batches[0].L2Txs[1], common.TxTypeTransfer, 1, "A",
+	tc.checkL2TxParams(t, blocks[1].Rollup.Batches[0].L2Txs[1], common.TxTypeTransfer, 1, "A", "B", big.NewInt(1), common.BatchNum(6))
-		"B", big.NewInt(1), common.BatchNum(6))
 }
 
-func (tc *Context) checkL1TxParams(t *testing.T, tx common.L1Tx, typ common.TxType,
+func (tc *Context) checkL1TxParams(t *testing.T, tx common.L1Tx, typ common.TxType, tokenID common.TokenID, from, to string, depositAmount, amount *big.Int) {
-	tokenID common.TokenID, from, to string, depositAmount, amount *big.Int) {
 	assert.Equal(t, typ, tx.Type)
 	if tx.FromIdx != common.Idx(0) {
 		assert.Equal(t, tc.Users[from].Accounts[tokenID].Idx, tx.FromIdx)
@@ -196,8 +179,7 @@ func (tc *Context) checkL1TxParams(t *testing.T, tx common.L1Tx, typ common.TxTy
 	}
 }
 
-func (tc *Context) checkL2TxParams(t *testing.T, tx common.L2Tx, typ common.TxType,
+func (tc *Context) checkL2TxParams(t *testing.T, tx common.L2Tx, typ common.TxType, tokenID common.TokenID, from, to string, amount *big.Int, batchNum common.BatchNum) {
-	tokenID common.TokenID, from, to string, amount *big.Int, batchNum common.BatchNum) {
 	assert.Equal(t, typ, tx.Type)
 	assert.Equal(t, tc.Users[from].Accounts[tokenID].Idx, tx.FromIdx)
 	if tx.Type != common.TxTypeExit {
@@ -385,9 +367,7 @@ func TestGenerateErrors(t *testing.T) {
 		`
 	tc := NewContext(0, common.RollupConstMaxL1UserTx)
 	_, err := tc.GenerateBlocks(set)
-	assert.Equal(t,
+	assert.Equal(t, "Line 2: Can not process CreateAccountDeposit: TokenID 1 not registered, last registered TokenID: 0", err.Error())
-		"Line 2: Can not process CreateAccountDeposit: TokenID 1 not registered, "+
-			"last registered TokenID: 0", err.Error())
 
 	// ensure AddToken sequentiality and not using 0
 	set = `
@@ -404,8 +384,7 @@ func TestGenerateErrors(t *testing.T) {
 	`
 	tc = NewContext(0, common.RollupConstMaxL1UserTx)
 	_, err = tc.GenerateBlocks(set)
-	require.Equal(t, "Line 2: AddToken TokenID should be sequential, expected TokenID: "+
+	require.Equal(t, "Line 2: AddToken TokenID should be sequential, expected TokenID: 1, defined TokenID: 2", err.Error())
-		"1, defined TokenID: 2", err.Error())
 
 	set = `
 		Type: Blockchain
@@ -416,8 +395,7 @@ func TestGenerateErrors(t *testing.T) {
 	`
 	tc = NewContext(0, common.RollupConstMaxL1UserTx)
 	_, err = tc.GenerateBlocks(set)
-	require.Equal(t, "Line 5: AddToken TokenID should be sequential, expected TokenID: "+
+	require.Equal(t, "Line 5: AddToken TokenID should be sequential, expected TokenID: 4, defined TokenID: 5", err.Error())
-		"4, defined TokenID: 5", err.Error())
 
 	// check transactions when account is not created yet
 	set = `
@@ -431,8 +409,7 @@ func TestGenerateErrors(t *testing.T) {
 	`
 	tc = NewContext(0, common.RollupConstMaxL1UserTx)
 	_, err = tc.GenerateBlocks(set)
-	require.Equal(t, "Line 5: CreateAccountDeposit(1)BTransfer(1) A-B: 6 (1)\n, err: "+
+	require.Equal(t, "Line 5: CreateAccountDeposit(1)BTransfer(1) A-B: 6 (1)\n, err: Expected ':', found 'Transfer'", err.Error())
-		"Expected ':', found 'Transfer'", err.Error())
 	set = `
 		Type: Blockchain
 		AddToken(1)
@@ -457,8 +434,7 @@ func TestGenerateErrors(t *testing.T) {
 		CreateAccountCoordinator(1) B
 		> batchL1
 		Transfer(1) A-B: 6 (1)
-		Transfer(1) A-B: 6 (1) // on purpose this is moving more money that
+		Transfer(1) A-B: 6 (1) // on purpose this is moving more money that what it has in the account, Til should not fail
-				       // what it has in the account, Til should not fail
 		Transfer(1) B-A: 6 (1)
 		Exit(1) A: 3 (1)
 		> batch
@@ -582,8 +558,7 @@ func TestGenerateFromInstructions(t *testing.T) {
 		CreateAccountCoordinator(1) B
 		> batchL1
 		Transfer(1) A-B: 6 (1)
-		Transfer(1) A-B: 6 (1) // on purpose this is moving more money that
+		Transfer(1) A-B: 6 (1) // on purpose this is moving more money that what it has in the account, Til should not fail
-				       // what it has in the account, Til should not fail
 		Transfer(1) B-A: 6 (1)
 		Exit(1) A: 3 (1)
 		> batch

test/txsets/tilsets.go

@@ -181,8 +181,7 @@ Transfer(1) H-O: 5 (1)
 Transfer(1) I-H: 5 (1)
 Exit(1) A: 5 (1)
 
-// create CoordinatorTx CreateAccount for D, TokenId 2, used at SetPool0 for
+// create CoordinatorTx CreateAccount for D, TokenId 2, used at SetPool0 for 'PoolTransfer(2) B-D: 3 (1)'
-// 'PoolTransfer(2) B-D: 3 (1)'
 CreateAccountCoordinator(2) D
 
 > batchL1

test/txsets/txhelpers.go

@@ -25,14 +25,8 @@ import (
 func GenerateJsUsers(t *testing.T) []til.User {
 	// same values than in the js test
 	// skJsHex is equivalent to the 0000...000i js private key in commonjs
-	skJsHex := []string{"7eb258e61862aae75c6c1d1f7efae5006ffc9e4d5596a6ff95f3df4ea209ea7f",
+	skJsHex := []string{"7eb258e61862aae75c6c1d1f7efae5006ffc9e4d5596a6ff95f3df4ea209ea7f", "c005700f76f4b4cec710805c21595688648524df0a9d467afae537b7a7118819", "b373d14c67fb2a517bf4ac831c93341eec8e1b38dbc14e7d725b292a7cf84707", "2064b68d04a7aaae0ac3b36bf6f1850b380f1423be94a506c531940bd4a48b76"}
-		"c005700f76f4b4cec710805c21595688648524df0a9d467afae537b7a7118819",
+	addrHex := []string{"0x7e5f4552091a69125d5dfcb7b8c2659029395bdf", "0x2b5ad5c4795c026514f8317c7a215e218dccd6cf", "0x6813eb9362372eef6200f3b1dbc3f819671cba69", "0x1eff47bc3a10a45d4b230b5d10e37751fe6aa718"}
-		"b373d14c67fb2a517bf4ac831c93341eec8e1b38dbc14e7d725b292a7cf84707",
-		"2064b68d04a7aaae0ac3b36bf6f1850b380f1423be94a506c531940bd4a48b76"}
-	addrHex := []string{"0x7e5f4552091a69125d5dfcb7b8c2659029395bdf",
-		"0x2b5ad5c4795c026514f8317c7a215e218dccd6cf",
-		"0x6813eb9362372eef6200f3b1dbc3f819671cba69",
-		"0x1eff47bc3a10a45d4b230b5d10e37751fe6aa718"}
 	var users []til.User
 	for i := 0; i < len(skJsHex); i++ {
 		skJs, err := hex.DecodeString(skJsHex[i])
@@ -47,14 +41,10 @@ func GenerateJsUsers(t *testing.T) []til.User {
 		}
 		users = append(users, user)
 	}
-	assert.Equal(t, "d746824f7d0ac5044a573f51b278acb56d823bec39551d1d7bf7378b68a1b021",
+	assert.Equal(t, "d746824f7d0ac5044a573f51b278acb56d823bec39551d1d7bf7378b68a1b021", users[0].BJJ.Public().String())
-		users[0].BJJ.Public().String())
+	assert.Equal(t, "4d05c307400c65795f02db96b1b81c60386fd53e947d9d3f749f3d99b1853909", users[1].BJJ.Public().String())
-	assert.Equal(t, "4d05c307400c65795f02db96b1b81c60386fd53e947d9d3f749f3d99b1853909",
+	assert.Equal(t, "38ffa002724562eb2a952a2503e206248962406cf16392ff32759b6f2a41fe11", users[2].BJJ.Public().String())
-		users[1].BJJ.Public().String())
+	assert.Equal(t, "c719e6401190be7fa7fbfcd3448fe2755233c01575341a3b09edadf5454f760b", users[3].BJJ.Public().String())
-	assert.Equal(t, "38ffa002724562eb2a952a2503e206248962406cf16392ff32759b6f2a41fe11",
-		users[2].BJJ.Public().String())
-	assert.Equal(t, "c719e6401190be7fa7fbfcd3448fe2755233c01575341a3b09edadf5454f760b",
-		users[3].BJJ.Public().String())
 
 	return users
 }
@@ -68,9 +58,7 @@ func signL2Tx(t *testing.T, chainID uint16, user til.User, l2Tx common.PoolL2Tx)
 }
 
 // GenerateTxsZKInputsHash0 generates the transactions for the TestZKInputsHash0
-func GenerateTxsZKInputsHash0(t *testing.T, chainID uint16) (users []til.User,
+func GenerateTxsZKInputsHash0(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
-	coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx,
-	l2Txs []common.PoolL2Tx) {
 	// same values than in the js test
 	users = GenerateJsUsers(t)
 
@@ -105,9 +93,7 @@ func GenerateTxsZKInputsHash0(t *testing.T, chainID uint16) (users []til.User,
 }
 
 // GenerateTxsZKInputsHash1 generates the transactions for the TestZKInputsHash1
-func GenerateTxsZKInputsHash1(t *testing.T, chainID uint16) (users []til.User,
+func GenerateTxsZKInputsHash1(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
-	coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx,
-	l2Txs []common.PoolL2Tx) {
 	// same values than in the js test
 	users = GenerateJsUsers(t)
 	l1UserTxs = []common.L1Tx{
@@ -152,9 +138,7 @@ func GenerateTxsZKInputsHash1(t *testing.T, chainID uint16) (users []til.User,
 }
 
 // GenerateTxsZKInputs0 generates the transactions for the TestZKInputs0
-func GenerateTxsZKInputs0(t *testing.T, chainID uint16) (users []til.User,
+func GenerateTxsZKInputs0(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
-	coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx,
-	l2Txs []common.PoolL2Tx) {
 	// same values than in the js test
 	users = GenerateJsUsers(t)
 
@@ -191,8 +175,7 @@ func GenerateTxsZKInputs0(t *testing.T, chainID uint16) (users []til.User,
 }
 
 // GenerateTxsZKInputs1 generates the transactions for the TestZKInputs1
-func GenerateTxsZKInputs1(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx,
+func GenerateTxsZKInputs1(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
-	l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
 	// same values than in the js test
 	users = GenerateJsUsers(t)
 
@@ -239,8 +222,7 @@ func GenerateTxsZKInputs1(t *testing.T, chainID uint16) (users []til.User, coord
 }
 
 // GenerateTxsZKInputs2 generates the transactions for the TestZKInputs2
-func GenerateTxsZKInputs2(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx,
+func GenerateTxsZKInputs2(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
-	l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
 	// same values than in the js test
 	users = GenerateJsUsers(t)
 
@@ -319,8 +301,7 @@ func GenerateTxsZKInputs2(t *testing.T, chainID uint16) (users []til.User, coord
 }
 
 // GenerateTxsZKInputs3 generates the transactions for the TestZKInputs3
-func GenerateTxsZKInputs3(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx,
+func GenerateTxsZKInputs3(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
-	l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
 	// same values than in the js test
 	users = GenerateJsUsers(t)
 
@@ -399,8 +380,7 @@ func GenerateTxsZKInputs3(t *testing.T, chainID uint16) (users []til.User, coord
 }
 
 // GenerateTxsZKInputs4 generates the transactions for the TestZKInputs4
-func GenerateTxsZKInputs4(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx,
+func GenerateTxsZKInputs4(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
-	l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
 	// same values than in the js test
 	users = GenerateJsUsers(t)
 
@@ -489,8 +469,7 @@ func GenerateTxsZKInputs4(t *testing.T, chainID uint16) (users []til.User, coord
 }
 
 // GenerateTxsZKInputs5 generates the transactions for the TestZKInputs5
-func GenerateTxsZKInputs5(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx,
+func GenerateTxsZKInputs5(t *testing.T, chainID uint16) (users []til.User, coordIdxs []common.Idx, l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
-	l1UserTxs []common.L1Tx, l1CoordTxs []common.L1Tx, l2Txs []common.PoolL2Tx) {
 	// same values than in the js test
 	users = GenerateJsUsers(t)