Feature/merge history l2 tables (#156)

* WIP rebase

* Combine both SQL DBs

* API and DB refactor

.github/workflows/test.yml

@@ -17,7 +17,7 @@ jobs:
     - name: Checkout code
       uses: actions/checkout@v2
     - name: Postgres
-      run: docker run --rm --name hermez-db-test -p 5432:5432 -e POSTGRES_DB=history -e POSTGRES_USER=hermez -e POSTGRES_PASSWORD="${{ secrets.POSTGRES_PASS }}" -d postgres && sleep 2s && docker exec hermez-db-test psql -a history -U hermez -c "CREATE DATABASE l2;"
+      run: docker run --rm --name hermez-db-test -p 5432:5432 -e POSTGRES_DB=hermez -e POSTGRES_USER=hermez -e POSTGRES_PASSWORD="${{ secrets.POSTGRES_PASS }}" -d postgres
     - name: Test
       env:
         POSTGRES_PASS: ${{ secrets.POSTGRES_PASS }}

README.md

@@ -7,7 +7,7 @@ Go implementation of the Hermez node.
 - First run a docker instance of the PostgresSQL (where `yourpasswordhere` should be your password)
 
 ```
-POSTGRES_PASS=yourpasswordhere; sudo docker run --rm --name hermez-db-test -p 5432:5432 -e POSTGRES_DB=history -e POSTGRES_USER=hermez -e POSTGRES_PASSWORD="$POSTGRES_PASS" -d postgres && sleep 2s && sudo docker exec hermez-db-test psql -a history -U hermez -c "CREATE DATABASE l2;"
+POSTGRES_PASS=yourpasswordhere; sudo docker run --rm --name hermez-db-test -p 5432:5432 -e POSTGRES_DB=hermez -e POSTGRES_USER=hermez -e POSTGRES_PASSWORD="$POSTGRES_PASS" -d postgres
 ```
 
 - Then, run the tests with the password as env var

api/api.go

@@ -2,7 +2,6 @@ package api
 
 import (
 	"errors"
-	"fmt"
 
 	"github.com/gin-gonic/gin"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
@@ -11,8 +10,9 @@ import (
 )
 
 var h *historydb.HistoryDB
-var s *statedb.StateDB // Not 100% sure if this is needed
+
-var l2 *l2db.L2DB
+// var s *statedb.StateDB // Not 100% sure if this is needed
+// var l2 *l2db.L2DB
 
 // SetAPIEndpoints sets the endpoints and the appropriate handlers, but doesn't start the server
 func SetAPIEndpoints(
@@ -32,11 +32,9 @@ func SetAPIEndpoints(
 	}
 
 	h = hdb
-	s = sdb
+	// s = sdb
-	l2 = l2db
+	// l2 = l2db
 
-	// tmp
-	fmt.Println(h, s, l2)
 	// Add coordinator endpoints
 	if coordinatorEndpoints {
 		// Account

api/api_test.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
+	"math"
 	"math/big"
 	"net/http"
 	"os"
@@ -19,13 +20,14 @@ import (
 	swagger "github.com/getkin/kin-openapi/openapi3filter"
 	"github.com/gin-gonic/gin"
 	"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/log"
 	"github.com/hermeznetwork/hermez-node/test"
 	"github.com/iden3/go-iden3-crypto/babyjub"
-	"github.com/jinzhu/copier"
+	"github.com/mitchellh/copystructure"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -77,16 +79,18 @@ func TestMain(m *testing.M) {
 	// Init swagger
 	router := swagger.NewRouter().WithSwaggerFromFile("./swagger.yml")
 	// Init DBs
+	// HistoryDB
 	pass := os.Getenv("POSTGRES_PASS")
-	hdb, err := historydb.NewHistoryDB(5432, "localhost", "hermez", pass, "history")
+	db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
 	if err != nil {
 		panic(err)
 	}
-	// Reset DB
+	hdb := historydb.NewHistoryDB(db)
 	err = hdb.Reorg(-1)
 	if err != nil {
 		panic(err)
 	}
+	// StateDB
 	dir, err := ioutil.TempDir("", "tmpdb")
 	if err != nil {
 		panic(err)
@@ -95,11 +99,10 @@ func TestMain(m *testing.M) {
 	if err != nil {
 		panic(err)
 	}
-	l2db, err := l2db.NewL2DB(5432, "localhost", "hermez", pass, "l2", 10, 512, 24*time.Hour)
+	// L2DB
-	if err != nil {
+	l2DB := l2db.NewL2DB(db, 10, 100, 24*time.Hour)
-		panic(err)
+	test.CleanL2DB(l2DB.DB())
-	}
+
-	test.CleanL2DB(l2db.DB())
 	// Init API
 	api := gin.Default()
 	if err := SetAPIEndpoints(
@@ -108,7 +111,7 @@ func TestMain(m *testing.M) {
 		api,
 		hdb,
 		sdb,
-		l2db,
+		l2DB,
 	); err != nil {
 		panic(err)
 	}
@@ -120,6 +123,7 @@ func TestMain(m *testing.M) {
 			panic(err)
 		}
 	}()
+
 	// Populate DBs
 	// Clean DB
 	err = h.Reorg(0)
@@ -203,40 +207,67 @@ func TestMain(m *testing.M) {
 				}
 			}
 			// find token
-			token := common.Token{}
+			var token common.Token
-			for i := 0; i < len(tokens); i++ {
+			if genericTx.IsL1 {
-				if tokens[i].TokenID == genericTx.TokenID {
+				tokenID := genericTx.TokenID
-					token = tokens[i]
+				found := false
-					break
+				for i := 0; i < len(tokens); i++ {
+					if tokens[i].TokenID == tokenID {
+						token = tokens[i]
+						found = true
+						break
+					}
+				}
+				if !found {
+					panic("Token not found")
+				}
+			} else {
+				token = test.GetToken(genericTx.FromIdx, accs, tokens)
+			}
+			var usd, loadUSD, feeUSD *float64
+			if token.USD != nil {
+				noDecimalsUSD := *token.USD / math.Pow(10, float64(token.Decimals))
+				usd = new(float64)
+				*usd = noDecimalsUSD * genericTx.AmountFloat
+				if genericTx.IsL1 {
+					loadUSD = new(float64)
+					*loadUSD = noDecimalsUSD * *genericTx.LoadAmountFloat
+				} else {
+					feeUSD = new(float64)
+					*feeUSD = *usd * genericTx.Fee.Percentage()
 				}
 			}
 			historyTxs = append(historyTxs, &historydb.HistoryTx{
-				IsL1:            genericTx.IsL1,
+				IsL1:                  genericTx.IsL1,
-				TxID:            genericTx.TxID,
+				TxID:                  genericTx.TxID,
-				Type:            genericTx.Type,
+				Type:                  genericTx.Type,
-				Position:        genericTx.Position,
+				Position:              genericTx.Position,
-				FromIdx:         genericTx.FromIdx,
+				FromIdx:               genericTx.FromIdx,
-				ToIdx:           genericTx.ToIdx,
+				ToIdx:                 genericTx.ToIdx,
-				Amount:          genericTx.Amount,
+				Amount:                genericTx.Amount,
-				AmountFloat:     genericTx.AmountFloat,
+				AmountFloat:           genericTx.AmountFloat,
-				TokenID:         genericTx.TokenID,
+				HistoricUSD:           usd,
-				USD:             token.USD * genericTx.AmountFloat,
+				BatchNum:              genericTx.BatchNum,
-				BatchNum:        genericTx.BatchNum,
+				EthBlockNum:           genericTx.EthBlockNum,
-				EthBlockNum:     genericTx.EthBlockNum,
+				ToForgeL1TxsNum:       genericTx.ToForgeL1TxsNum,
-				ToForgeL1TxsNum: genericTx.ToForgeL1TxsNum,
+				UserOrigin:            genericTx.UserOrigin,
-				UserOrigin:      genericTx.UserOrigin,
+				FromEthAddr:           genericTx.FromEthAddr,
-				FromEthAddr:     genericTx.FromEthAddr,
+				FromBJJ:               genericTx.FromBJJ,
-				FromBJJ:         genericTx.FromBJJ,
+				LoadAmount:            genericTx.LoadAmount,
-				LoadAmount:      genericTx.LoadAmount,
+				LoadAmountFloat:       genericTx.LoadAmountFloat,
-				LoadAmountFloat: genericTx.LoadAmountFloat,
+				HistoricLoadAmountUSD: loadUSD,
-				LoadAmountUSD:   token.USD * genericTx.LoadAmountFloat,
+				Fee:                   genericTx.Fee,
-				Fee:             genericTx.Fee,
+				HistoricFeeUSD:        feeUSD,
-				FeeUSD:          genericTx.Fee.Percentage() * token.USD * genericTx.AmountFloat,
+				Nonce:                 genericTx.Nonce,
-				Nonce:           genericTx.Nonce,
+				Timestamp:             timestamp,
-				Timestamp:       timestamp,
+				TokenID:               token.TokenID,
-				TokenSymbol:     token.Symbol,
+				TokenEthBlockNum:      token.EthBlockNum,
-				CurrentUSD:      token.USD * genericTx.AmountFloat,
+				TokenEthAddr:          token.EthAddr,
-				USDUpdate:       token.USDUpdate,
+				TokenName:             token.Name,
+				TokenSymbol:           token.Symbol,
+				TokenDecimals:         token.Decimals,
+				TokenUSD:              token.USD,
+				TokenUSDUpdate:        token.USDUpdate,
 			})
 		}
 		return historyTxAPIs(historyTxsToAPI(historyTxs))
@@ -265,10 +296,7 @@ func TestMain(m *testing.M) {
 	if err := server.Shutdown(context.Background()); err != nil {
 		panic(err)
 	}
-	if err := h.Close(); err != nil {
+	if err := db.Close(); err != nil {
-		panic(err)
-	}
-	if err := l2.Close(); err != nil {
 		panic(err)
 	}
 	os.Exit(result)
@@ -279,11 +307,11 @@ func TestGetHistoryTxs(t *testing.T) {
 	fetchedTxs := historyTxAPIs{}
 	appendIter := func(intr interface{}) {
 		for i := 0; i < len(intr.(*historyTxsAPI).Txs); i++ {
-			tmp := &historyTxAPI{}
+			tmp, err := copystructure.Copy(intr.(*historyTxsAPI).Txs[i])
-			if err := copier.Copy(tmp, &intr.(*historyTxsAPI).Txs[i]); err != nil {
+			if err != nil {
 				panic(err)
 			}
-			fetchedTxs = append(fetchedTxs, *tmp)
+			fetchedTxs = append(fetchedTxs, tmp.(historyTxAPI))
 		}
 	}
 	// Get all (no filters)
@@ -315,7 +343,7 @@ func TestGetHistoryTxs(t *testing.T) {
 	// Get by tokenID
 	fetchedTxs = historyTxAPIs{}
 	limit = 5
-	tokenID := tc.allTxs[0].TokenID
+	tokenID := tc.allTxs[0].Token.TokenID
 	path = fmt.Sprintf(
 		"%s?tokenId=%d&limit=%d&offset=",
 		endpoint, tokenID, limit,
@@ -324,7 +352,7 @@ func TestGetHistoryTxs(t *testing.T) {
 	assert.NoError(t, err)
 	tokenIDTxs := historyTxAPIs{}
 	for i := 0; i < len(tc.allTxs); i++ {
-		if tc.allTxs[i].TokenID == tokenID {
+		if tc.allTxs[i].Token.TokenID == tokenID {
 			tokenIDTxs = append(tokenIDTxs, tc.allTxs[i])
 		}
 	}
@@ -407,7 +435,7 @@ func TestGetHistoryTxs(t *testing.T) {
 	mixedTxs := historyTxAPIs{}
 	for i := 0; i < len(tc.allTxs); i++ {
 		if tc.allTxs[i].BatchNum != nil {
-			if *tc.allTxs[i].BatchNum == *batchNum && tc.allTxs[i].TokenID == tokenID {
+			if *tc.allTxs[i].BatchNum == *batchNum && tc.allTxs[i].Token.TokenID == tokenID {
 				mixedTxs = append(mixedTxs, tc.allTxs[i])
 			}
 		}
@@ -420,11 +448,11 @@ func TestGetHistoryTxs(t *testing.T) {
 	appendIterRev := func(intr interface{}) {
 		tmpAll := historyTxAPIs{}
 		for i := 0; i < len(intr.(*historyTxsAPI).Txs); i++ {
-			tmpItem := &historyTxAPI{}
+			tmp, err := copystructure.Copy(intr.(*historyTxsAPI).Txs[i])
-			if err := copier.Copy(tmpItem, &intr.(*historyTxsAPI).Txs[i]); err != nil {
+			if err != nil {
 				panic(err)
 			}
-			tmpAll = append(tmpAll, *tmpItem)
+			tmpAll = append(tmpAll, tmp.(historyTxAPI))
 		}
 		fetchedTxs = append(tmpAll, fetchedTxs...)
 	}
@@ -455,15 +483,17 @@ func assertHistoryTxAPIs(t *testing.T, expected, actual historyTxAPIs) {
 	for i := 0; i < len(actual); i++ { //nolint len(actual) won't change within the loop
 		assert.Equal(t, expected[i].Timestamp.Unix(), actual[i].Timestamp.Unix())
 		expected[i].Timestamp = actual[i].Timestamp
-		assert.Equal(t, expected[i].USDUpdate.Unix(), actual[i].USDUpdate.Unix())
+		if expected[i].Token.USDUpdate == nil {
-		expected[i].USDUpdate = actual[i].USDUpdate
+			assert.Equal(t, expected[i].Token.USDUpdate, actual[i].Token.USDUpdate)
+		} else {
+			assert.Equal(t, expected[i].Token.USDUpdate.Unix(), actual[i].Token.USDUpdate.Unix())
+			expected[i].Token.USDUpdate = actual[i].Token.USDUpdate
+		}
+		test.AssertUSD(t, expected[i].HistoricUSD, actual[i].HistoricUSD)
 		if expected[i].L2Info != nil {
-			if expected[i].L2Info.FeeUSD > actual[i].L2Info.FeeUSD {
+			test.AssertUSD(t, expected[i].L2Info.HistoricFeeUSD, actual[i].L2Info.HistoricFeeUSD)
-				assert.Less(t, 0.999, actual[i].L2Info.FeeUSD/expected[i].L2Info.FeeUSD)
+		} else {
-			} else if expected[i].L2Info.FeeUSD < actual[i].L2Info.FeeUSD {
+			test.AssertUSD(t, expected[i].L1Info.HistoricLoadAmountUSD, actual[i].L1Info.HistoricLoadAmountUSD)
-				assert.Less(t, 0.999, expected[i].L2Info.FeeUSD/actual[i].L2Info.FeeUSD)
-			}
-			expected[i].L2Info.FeeUSD = actual[i].L2Info.FeeUSD
 		}
 		assert.Equal(t, expected[i], actual[i])
 	}

api/dbtoapistructs.go

@@ -5,6 +5,7 @@ import (
 	"strconv"
 	"time"
 
+	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
 	"github.com/iden3/go-iden3-crypto/babyjub"
@@ -37,19 +38,19 @@ func (htx *historyTxsAPI) GetPagination() pagination { return htx.Pagination }
 func (htx *historyTxsAPI) Len() int                  { return len(htx.Txs) }
 
 type l1Info struct {
-	ToForgeL1TxsNum int64   `json:"toForgeL1TransactionsNum"`
+	ToForgeL1TxsNum       int64    `json:"toForgeL1TransactionsNum"`
-	UserOrigin      bool    `json:"userOrigin"`
+	UserOrigin            bool     `json:"userOrigin"`
-	FromEthAddr     string  `json:"fromEthereumAddress"`
+	FromEthAddr           string   `json:"fromHezEthereumAddress"`
-	FromBJJ         string  `json:"fromBJJ"`
+	FromBJJ               string   `json:"fromBJJ"`
-	LoadAmount      string  `json:"loadAmount"`
+	LoadAmount            string   `json:"loadAmount"`
-	LoadAmountUSD   float64 `json:"loadAmountUSD"`
+	HistoricLoadAmountUSD *float64 `json:"historicLoadAmountUSD"`
-	EthBlockNum     int64   `json:"ethereumBlockNum"`
+	EthBlockNum           int64    `json:"ethereumBlockNum"`
 }
 
 type l2Info struct {
-	Fee    common.FeeSelector `json:"fee"`
+	Fee            common.FeeSelector `json:"fee"`
-	FeeUSD float64            `json:"feeUSD"`
+	HistoricFeeUSD *float64           `json:"historicFeeUSD"`
-	Nonce  common.Nonce       `json:"nonce"`
+	Nonce          common.Nonce       `json:"nonce"`
 }
 
 type historyTxAPI struct {
@@ -61,14 +62,11 @@ type historyTxAPI struct {
 	ToIdx       string           `json:"toAccountIndex"`
 	Amount      string           `json:"amount"`
 	BatchNum    *common.BatchNum `json:"batchNum"`
-	TokenID     common.TokenID   `json:"tokenId"`
+	HistoricUSD *float64         `json:"historicUSD"`
-	TokenSymbol string           `json:"tokenSymbol"`
-	USD         float64          `json:"historicUSD"`
 	Timestamp   time.Time        `json:"timestamp"`
-	CurrentUSD  float64          `json:"currentUSD"`
-	USDUpdate   time.Time        `json:"fiatUpdate"`
 	L1Info      *l1Info          `json:"L1Info"`
 	L2Info      *l2Info          `json:"L2Info"`
+	Token       common.Token     `json:"token"`
 }
 
 func historyTxsToAPI(dbTxs []*historydb.HistoryTx) []historyTxAPI {
@@ -78,40 +76,42 @@ func historyTxsToAPI(dbTxs []*historydb.HistoryTx) []historyTxAPI {
 			TxID:        dbTxs[i].TxID,
 			Type:        dbTxs[i].Type,
 			Position:    dbTxs[i].Position,
-			FromIdx:     "hez:" + dbTxs[i].TokenSymbol + ":" + strconv.Itoa(int(dbTxs[i].FromIdx)),
+			FromIdx:     idxToHez(dbTxs[i].FromIdx, dbTxs[i].TokenSymbol),
-			ToIdx:       "hez:" + dbTxs[i].TokenSymbol + ":" + strconv.Itoa(int(dbTxs[i].ToIdx)),
+			ToIdx:       idxToHez(dbTxs[i].ToIdx, dbTxs[i].TokenSymbol),
 			Amount:      dbTxs[i].Amount.String(),
-			TokenID:     dbTxs[i].TokenID,
+			HistoricUSD: dbTxs[i].HistoricUSD,
-			USD:         dbTxs[i].USD,
+			BatchNum:    dbTxs[i].BatchNum,
-			BatchNum:    nil,
 			Timestamp:   dbTxs[i].Timestamp,
-			TokenSymbol: dbTxs[i].TokenSymbol,
+			Token: common.Token{
-			CurrentUSD:  dbTxs[i].CurrentUSD,
+				TokenID:     dbTxs[i].TokenID,
-			USDUpdate:   dbTxs[i].USDUpdate,
+				EthBlockNum: dbTxs[i].TokenEthBlockNum,
-			L1Info:      nil,
+				EthAddr:     dbTxs[i].TokenEthAddr,
-			L2Info:      nil,
+				Name:        dbTxs[i].TokenName,
-		}
+				Symbol:      dbTxs[i].TokenSymbol,
-		bn := dbTxs[i].BatchNum
+				Decimals:    dbTxs[i].TokenDecimals,
-		if dbTxs[i].BatchNum != 0 {
+				USD:         dbTxs[i].TokenUSD,
-			apiTx.BatchNum = &bn
+				USDUpdate:   dbTxs[i].TokenUSDUpdate,
+			},
+			L1Info: nil,
+			L2Info: nil,
 		}
 		if dbTxs[i].IsL1 {
 			apiTx.IsL1 = "L1"
 			apiTx.L1Info = &l1Info{
-				ToForgeL1TxsNum: dbTxs[i].ToForgeL1TxsNum,
+				ToForgeL1TxsNum:       dbTxs[i].ToForgeL1TxsNum,
-				UserOrigin:      dbTxs[i].UserOrigin,
+				UserOrigin:            dbTxs[i].UserOrigin,
-				FromEthAddr:     "hez:" + dbTxs[i].FromEthAddr.String(),
+				FromEthAddr:           ethAddrToHez(dbTxs[i].FromEthAddr),
-				FromBJJ:         bjjToString(dbTxs[i].FromBJJ),
+				FromBJJ:               bjjToString(dbTxs[i].FromBJJ),
-				LoadAmount:      dbTxs[i].LoadAmount.String(),
+				LoadAmount:            dbTxs[i].LoadAmount.String(),
-				LoadAmountUSD:   dbTxs[i].LoadAmountUSD,
+				HistoricLoadAmountUSD: dbTxs[i].HistoricLoadAmountUSD,
-				EthBlockNum:     dbTxs[i].EthBlockNum,
+				EthBlockNum:           dbTxs[i].EthBlockNum,
 			}
 		} else {
 			apiTx.IsL1 = "L2"
 			apiTx.L2Info = &l2Info{
-				Fee:    dbTxs[i].Fee,
+				Fee:            *dbTxs[i].Fee,
-				FeeUSD: dbTxs[i].FeeUSD,
+				HistoricFeeUSD: dbTxs[i].HistoricFeeUSD,
-				Nonce:  dbTxs[i].Nonce,
+				Nonce:          *dbTxs[i].Nonce,
 			}
 		}
 		apiTxs = append(apiTxs, apiTx)
@@ -128,3 +128,11 @@ func bjjToString(bjj *babyjub.PublicKey) string {
 	bjjSum := append(pkComp[:], sum)
 	return "hez:" + base64.RawURLEncoding.EncodeToString(bjjSum)
 }
+
+func ethAddrToHez(addr ethCommon.Address) string {
+	return "hez:" + addr.String()
+}
+
+func idxToHez(idx common.Idx, tokenSymbol string) string {
+	return "hez:" + tokenSymbol + ":" + strconv.Itoa(int(idx))
+}

api/swagger.yml

@@ -96,7 +96,7 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/Error500'
-  '/account-creation-authorization/{hermezEthereumAddress}':
+  '/account-creation-authorization/{hezEthereumAddress}':
     get:
       tags:
         - Account
@@ -105,12 +105,12 @@ paths:
         True if the coordinator has the required authorization to perform an account creation with the given Ethereum address on behalf of the Ethereum address holder.
       operationId: getAccountCreationAuthorization
       parameters:
-        - name: hermezEthereumAddress
+        - name: hezEthereumAddress
           in: path
           description: Ethereum address.
           required: true
           schema:
-            $ref: '#/components/schemas/HermezEthereumAddress'
+            $ref: '#/components/schemas/HezEthereumAddress'
       responses:
         '200':
           description: Successful operation.
@@ -144,15 +144,15 @@ paths:
       description: Get accounts balances and other associated information.
       operationId: getAccounts
       parameters:
-        - name: hermezEthereumAddress
+        - name: hezEthereumAddress
           in: query
           description: Only get accounts associated to an Ethereum address. Incompatible with the query `BJJ`.
           required: false
           schema:
-            $ref: '#/components/schemas/HermezEthereumAddress'
+            $ref: '#/components/schemas/HezEthereumAddress'
         - name: BJJ
           in: query
-          description: Only get accounts associated to a BabyJubJub public key.  Incompatible with the query `hermezEthereumAddress`.
+          description: Only get accounts associated to a BabyJubJub public key.  Incompatible with the query `hezEthereumAddress`.
           required: false
           schema:
             $ref: '#/components/schemas/BJJ'
@@ -258,21 +258,21 @@ paths:
       description: Get exit information. This information is required to perform a withdraw.
       operationId: getExits
       parameters:
-        - name: hermezEthereumAddress
+        - name: hezEthereumAddress
           in: query
           description: Get exits associated to a Ethereum address. Incompatible with query `BJJ` and `accountIndex`.
           required: false
           schema:
-            $ref: '#/components/schemas/HermezEthereumAddress'
+            $ref: '#/components/schemas/HezEthereumAddress'
         - name: BJJ
           in: query
-          description: Get exits associated to a BabyJubJub public key. Incompatible with query `hermezEthereumAddress` and `accountIndex`.
+          description: Get exits associated to a BabyJubJub public key. Incompatible with query `hezEthereumAddress` and `accountIndex`.
           required: false
           schema:
             $ref: '#/components/schemas/BJJ'
         - name: accountIndex
           in: query
-          description: Get exits associated to a specific account. Incompatible with queries `hermezEthereumAddress` and `BJJ`.
+          description: Get exits associated to a specific account. Incompatible with queries `hezEthereumAddress` and `BJJ`.
           required: false
           schema:
             $ref: '#/components/schemas/AccountIndex'
@@ -388,7 +388,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/PoolL2Transaction'
+              $ref: '#/components/schemas/PostPoolL2Transaction'
       responses:
         '200':
           description: Successful operation.
@@ -468,22 +468,22 @@ paths:
           description: Only get transactions of specific token
           schema:
             $ref: '#/components/schemas/TokenId'
-        - name: hermezEthereumAddress
+        - name: hezEthereumAddress
           in: query
           required: false
           description: Only get transactions sent from or to an account associated to an Ethereum address Incompatible with the queries `BJJ` and `accountIndex`.
           schema:
-            $ref: '#/components/schemas/HermezEthereumAddress'
+            $ref: '#/components/schemas/HezEthereumAddress'
         - name: BJJ
           in: query
-          description: Only get transactions associated to a BabyJubJub public key. Incompatible with the queries `hermezEthereumAddress` and `accountIndex`.
+          description: Only get transactions associated to a BabyJubJub public key. Incompatible with the queries `hezEthereumAddress` and `accountIndex`.
           required: false
           schema:
             $ref: '#/components/schemas/BJJ'
         - name: accountIndex
           in: query
           required: false
-          description: Only get transactions sent from or to a specific account. Incompatible with the queries `tokenId`, `hermezEthereumAddress` and `BJJ`.
+          description: Only get transactions sent from or to a specific account. Incompatible with the queries `tokenId`, `hezEthereumAddress` and `BJJ`.
           schema:
             $ref: '#/components/schemas/AccountIndex'
         - name: batchNum
@@ -1228,6 +1228,101 @@ paths:
                 $ref: '#/components/schemas/Error500'
 components:
   schemas:
+    PostPoolL2Transaction:
+      type: object
+      properties:
+        id:
+          $ref: '#/components/schemas/TransactionId'
+        type:
+          $ref: '#/components/schemas/TransactionType'
+        tokenId:
+          $ref: '#/components/schemas/TokenId'
+        fromAccountIndex:
+          $ref: '#/components/schemas/AccountIndex'
+        toAccountIndex:
+          allOf:
+            - $ref: '#/components/schemas/AccountIndex'
+            - example: "hez:DAI:672"
+        toHezEthereumAddress:
+          $ref: '#/components/schemas/HezEthereumAddress'
+        toBjj:
+          $ref: '#/components/schemas/BJJ'
+        amount:
+          allOf:
+            - $ref: '#/components/schemas/BigInt'
+            - description: Amount of tokens to be sent.
+              example: "63"
+        fee:
+          $ref: '#/components/schemas/FeeSelector'
+        nonce:
+          $ref: '#/components/schemas/Nonce'
+        signature:
+          allOf:
+            - $ref: '#/components/schemas/Signature'
+            - description: Signature of the transaction. More info [here](https://idocs.hermez.io/#/spec/zkrollup/README?id=l2a-idl2).
+            - example: "72024a43f546b0e1d9d5d7c4c30c259102a9726363adcc4ec7b6aea686bcb5116f485c5542d27c4092ae0ceaf38e3bb44417639bd2070a58ba1aa1aab9d92c03"
+        requestFromAccountIndex:
+          type: string
+          description: References the `fromAccountIndex` of the requested transaction.
+          example: null
+          nullable: true
+        requestToAccountIndex:
+          type: string
+          description: References the `toAccountIndex` of the requested transaction.
+          example: null
+          nullable: true
+        requestToHezEthereumAddress:
+          type: string
+          description: References the `toHezEthereumAddress` of the requested transaction.
+          pattern: "^hez:0x[a-fA-F0-9]{40}$"
+          example: null
+          nullable: true
+        requestToBJJ:
+          type: string
+          description: References the `toBJJ` of the requested transaction.
+          pattern: "^hez:[A-Za-z0-9_-]{44}$"
+          example: null
+          nullable: true
+        requestTokenId:
+          type: integer
+          description: References the `tokenId` of the requested transaction.
+          example: null
+          nullable: true
+        requestAmount:
+          type: string
+          description: References the `amount` of the requested transaction.
+          example: null
+          nullable: true
+        requestFee:
+          type: integer
+          description: References the `fee` of the requested transaction.
+          example: null
+          nullable: true
+        requestNonce:
+          type: integer
+          description: References the `nonce` of the requested transaction.
+          example: null
+          nullable: true
+      required:
+      - id
+      - type
+      - tokenId
+      - fromAccountIndex
+      - toHezAccountIndex
+      - toHezEthereumAddress
+      - toBjj
+      - amount
+      - fee
+      - nonce
+      - signature
+      - requestFromAccountIndex
+      - requestToAccountIndex
+      - requestToHezEthereumAddress
+      - requestToBJJ
+      - requestTokenId
+      - requestAmount
+      - requestFee
+      - requestNonce  
     PoolL2Transaction:
       type: object
       properties:
@@ -1241,20 +1336,10 @@ components:
           allOf:
             - $ref: '#/components/schemas/AccountIndex'
             - example: "hez:DAI:672"
-        toEthereumAddress:
+        toHezEthereumAddress:
-          $ref: '#/components/schemas/HermezEthereumAddress'
+          $ref: '#/components/schemas/HezEthereumAddress'
         toBjj:
           $ref: '#/components/schemas/BJJ'
-        tokenId:
-          $ref: '#/components/schemas/TokenId'
-        USD:
-          type: number
-          description: Value of the token in USD.
-          example: 4.53
-        fiatUpdate:
-          type: string
-          format: date-time
-          description: Timestamp of the moment the `USD` value was updated.
         amount:
           allOf:
             - $ref: '#/components/schemas/BigInt'
@@ -1262,10 +1347,6 @@ components:
               example: "63"
         fee:
           $ref: '#/components/schemas/FeeSelector'
-        feeUSD:
-          type: number
-          description: Fee in USD.
-          example: 0.75
         nonce:
           $ref: '#/components/schemas/Nonce'
         state:
@@ -1294,9 +1375,9 @@ components:
             - $ref: '#/components/schemas/AccountIndex'
             - nullable: true
             - example: "hez:DAI:33"
-        requestToEthereumAddress:
+        requestToHezEthereumAddress:
           allOf:
-            - $ref: '#/components/schemas/HermezEthereumAddress'
+            - $ref: '#/components/schemas/HezEthereumAddress'
             - nullable: true
             - example: "hez:0xbb942cfcd25ad4d90a62358b0dd84f33b3982699" 
         requestToBJJ:
@@ -1325,12 +1406,12 @@ components:
             - $ref: '#/components/schemas/Nonce'
             - nullable: true
             - example: 6
-        tokenSymbol:
+        token:
-          $ref: '#/components/schemas/TokenSymbol'
+          $ref: '#/components/schemas/Token'
       required:
       - fromAccountIndex
-      - toAccountIndex
+      - toHezAccountIndex
-      - toEthereumAddress
+      - toHezEthereumAddress
       - toBjj
       - tokenId
       - amount
@@ -1346,14 +1427,14 @@ components:
       description: "Address of an Etherum account."
       pattern: "^0x[a-fA-F0-9]{40}$"
       example: "0xaa942cfcd25ad4d90a62358b0dd84f33b398262a" 
-    HermezEthereumAddress:
+    HezEthereumAddress:
       type: string
       description: "Address of an Etherum account linked to the Hermez network."
       pattern: "^hez:0x[a-fA-F0-9]{40}$"
       example: "hez:0xaa942cfcd25ad4d90a62358b0dd84f33b398262a" 
     BJJ:
       type: string
-      description: "BabyJubJub public key, encoded as base64, which result in 33 bytes (last byte used as checksum)."
+      description: "BabyJubJub public key, encoded as base64 URL (RFC 4648), which result in 33 bytes. The padding byte is replaced by a sum of the encoded bytes."
       pattern: "^hez:[A-Za-z0-9_-]{44}$"
       example: "hez:rR7LXKal-av7I56Y0dEBCVmwc9zpoLY5ERhy5w7G-xwe"
     AccountIndex:
@@ -1429,8 +1510,8 @@ components:
         timestamp:
           type: string
           format: date-time
-        ethereumAddress:
+        hezEthereumAddress:
-          $ref: '#/components/schemas/HermezEthereumAddress'
+          $ref: '#/components/schemas/HezEthereumAddress'
         bjj:
           $ref: '#/components/schemas/BJJ'
         signature:
@@ -1475,26 +1556,17 @@ components:
           maximum: 4294967295
           example: 5432
           nullable: true
-        tokenId:
-          $ref: '#/components/schemas/TokenId'
-        tokenSymbol:
-          $ref: '#/components/schemas/TokenSymbol'
         historicUSD:
           type: number
           description: Value in USD at the moment the transaction was forged.
           example: 49.7
-        currentUSD:
+          nullable: true
-          type: number
-          description: Value in USD at the current token/USD conversion.
-          example: 50.01
-        fiatUpdate:
-          type: string
-          format: date-time
-          description: Timestamp of the moment the `currentUSD` value was updated.
         timestamp:
           type: string
           format: date-time
           description: In the case of L1 indicates the moment where the transaction was added in the smart contract. For L2 indicates when the transaction was forged.
+        token:
+          $ref: '#/components/schemas/Token'
         L1Info:
           type: object
           description: Additional information that only applies to L1 transactions.
@@ -1505,8 +1577,8 @@ components:
             userOrigin:
               type: boolean
               description: True if the transaction was sent by a user. False if it was sent by a coordinator.
-            fromEthereumAddress:
+            fromHezEthereumAddress:
-              $ref: '#/components/schemas/HermezEthereumAddress'
+              $ref: '#/components/schemas/HezEthereumAddress'
             fromBJJ:
               $ref: '#/components/schemas/BJJ'
             loadAmount:
@@ -1514,10 +1586,11 @@ components:
                 - $ref: '#/components/schemas/BigInt'
                 - description: Tokens transfered from L1 to L2.
                 - example: "49"
-            loadAmountUSD:
+            historicLoadAmountUSD:
               type: number
               description: Load amount in USD, at the moment the transaction was made.
               example: 3.897
+              nullable: true
             ethereumBlockNum:
               allOf:
                 - $ref: '#/components/schemas/EthBlockNum'
@@ -1526,10 +1599,10 @@ components:
           required:
             - toForgeL1TransactionsNum
             - userOrigin
-            - fromEthereumAddress
+            - fromHezEthereumAddress
             - fromBJJ
             - loadAmount
-            - loadAmountUSD
+            - historicLoadAmountUSD
             - ethereumBlockNum
           additionalProperties: false
         L2Info:
@@ -1539,16 +1612,17 @@ components:
           properties:
             fee:
               $ref: '#/components/schemas/FeeSelector'
-            feeUSD:
+            historicFeeUSD:
               type: number
               description: Fee in USD, at the moment the transaction was forged.
               example: 263.89
+              nullable: true
             nonce:
               $ref: '#/components/schemas/Nonce'
           example: null
           required:
             - fee
-            - feeUSD
+            - historicFeeUSD
             - nonce
           additionalProperties: false
       required:
@@ -1560,12 +1634,9 @@ components:
         - toAccountIndex
         - amount
         - batchNum
-        - tokenId
-        - tokenSymbol
         - historicUSD
-        - currentUSD
-        - fiatUpdate
         - timestamp
+        - token
         - L1Info
         - L2Info
       additionalProperties: false
@@ -1618,10 +1689,8 @@ components:
       items:
         type: object 
         properties:
-          tokenId:
+          token:
-            $ref: '#/components/schemas/TokenId'
+            $ref: '#/components/schemas/Token'
-          tokenSymbol:
-            $ref: '#/components/schemas/TokenSymbol'
           amount:
             allOf:
               - $ref: '#/components/schemas/BigInt'
@@ -1635,13 +1704,21 @@ components:
           $ref: '#/components/schemas/BatchNum'
         ethereumBlockNum:
           $ref: '#/components/schemas/EthBlockNum'
+        ethereumBlockHash:
+          type: string
+          description: hash of the Ethereum block in which the batch was forged
+          example: "0xfe88c94d860f01a17f961bf4bdfb6e0c6cd10d3fda5cc861e805ca1240c58553"
+        timestamp:
+          type: string
+          format: date-time
+          description: Time in which the batch was forged.
         forgerAddr:
           $ref: '#/components/schemas/EthereumAddress'
         collectedFees:
           $ref: '#/components/schemas/CollectedFees'
-        totalCollectedFeesUSD:
+        historicTotalCollectedFeesUSD:
           type: number
-          description: Sum of the all the fees collected, in USD.
+          description: Sum of the all the fees collected, in USD, at the moment the batch was forged.
           example: 23.3
         stateRoot:
           allOf:
@@ -1668,35 +1745,8 @@ components:
       type: object
       description: Group of transactions forged in a coordinator and sent and validated in Ethereum.
       properties:
-        batchNum:
+        batch:
-          $ref: '#/components/schemas/BatchNum'
+          $ref: '#/components/schemas/Batch'
-        forgerAddr:
-          $ref: '#/components/schemas/EthereumAddress'
-        collectedFees:
-          $ref: '#/components/schemas/CollectedFees'
-        ethereumBlockNum:
-          $ref: '#/components/schemas/EthBlockNum'
-        stateRoot:
-          allOf:
-            - $ref: '#/components/schemas/Hash'
-            - description: Root of the accounts Merkle Tree.
-            - example: "2734657026572a8708d883"
-        numAccounts:
-          type: integer
-          description: Number of registered accounts in this batch.
-        exitRoot:
-          allOf:
-            - $ref: '#/components/schemas/Hash'
-            - description: Root of the exit Merkle Tree associated to this batch.
-            - example: "2734657026572a8708d883"
-        forgeL1TransactionsNum:
-          allOf:
-            - $ref: '#/components/schemas/ToForgeL1TransactionsNum'
-            - description: Identifier that corresponds to the group of L1 transactions forged in the current batch.
-            - nullable: true
-            - example: 9
-        slotNum:
-          $ref: '#/components/schemas/SlotNum'
         transactions:
           type: array
           description: List of forged transactions in the batch
@@ -1752,6 +1802,8 @@ components:
       properties:
         forgerAddr:
           $ref: '#/components/schemas/EthereumAddress'
+        slotNum:
+          $ref: '#/components/schemas/SlotNum'
         withdrawAddr:
           $ref: '#/components/schemas/EthereumAddress'
         URL:
@@ -1814,7 +1866,7 @@ components:
         decimals:
           type: integer
           description: Number of decimals of the token.
-          example: 5
+          example: 18
         ethereumBlockNum:
           allOf:
             - $ref: '#/components/schemas/EthBlockNum'
@@ -1823,11 +1875,23 @@ components:
         USD:
           type: number
           description: Value of the token in USD.
-          example: 4.53
+          example: 1.01
+          nullable: true
         fiatUpdate:
           type: string
           format: date-time
           description: Timestamp of the moment the `USD` value was updated.
+          nullable: true
+      required:
+        - id
+        - ethereumAddress
+        - name
+        - symbol
+        - decimals
+        - ethereumBlockNum
+        - USD
+        - fiatUpdate
+      additionalProperties: false
     Tokens:
       type: object
       properties:
@@ -1855,8 +1919,6 @@ components:
           example: "0x347089321de8971320489793a823470918fffeab"
         balance:
           $ref: '#/components/schemas/BigInt'
-        nullifier:
-          $ref: '#/components/schemas/BigInt'
         instantWithdrawn:
           allOf:
             - $ref: '#/components/schemas/EthBlockNum'
@@ -1872,6 +1934,8 @@ components:
             - $ref: '#/components/schemas/EthBlockNum'
             - description: Block in which the exit balance was delayed withdrawn after a delay withdraw request. Null indicates that a delay withdraw hasn't been performed.
             - example: null
+        token:
+          $ref: '#/components/schemas/Token'
     Exits:
       type: object
       properties:
@@ -1888,24 +1952,16 @@ components:
       properties:
         accountIndex:
           $ref: '#/components/schemas/AccountIndex'
-        tokenId:
-          $ref: '#/components/schemas/TokenId'
-        tokenSymbol:
-          $ref: '#/components/schemas/TokenSymbol'
-        tokenName:
-          $ref: '#/components/schemas/TokenName'
         nonce:
           $ref: '#/components/schemas/Nonce'      
         balance:
           $ref: '#/components/schemas/BigInt'
-        balanceUSD:
-          type: integer
-          description: Balance of the account in USD
-          example: 1304
         bjj:
           $ref: '#/components/schemas/BJJ'      
-        ethereumAddress:
+        hezEthereumAddress:
-          $ref: '#/components/schemas/HermezEthereumAddress'
+          $ref: '#/components/schemas/HezEthereumAddress'
+        token:
+          $ref: '#/components/schemas/Token'
     Accounts:
       type: object
       properties:
@@ -2053,6 +2109,7 @@ components:
                   allOf:
                     - $ref: '#/components/schemas/EthereumAddress'
                     - description: Ethereum address of the boot coordinator.
+                    - example: "0x997dc4262BCDbf85190C01c996b4C06a461d2430"
                 slotDeadline:
                   type: integer
                   description: Number of blocks at the end of a slot in which any coordinator can forge if the winner has not forged one before.
@@ -2078,6 +2135,7 @@ components:
                   allOf:
                     - $ref: '#/components/schemas/EthereumAddress'
                     - description: Ethereum address where the donations will go to.
+                    - example: "0x887dc4262BCDbf85190C01c996b4C06a461d2430"
                 allocationRatio:
                   type: array
                   description: Percentage in which fees will be splitted between donations, governance and burning. The sum of the tree values should be 100.
@@ -2092,22 +2150,27 @@ components:
                   allOf:
                     - $ref: '#/components/schemas/EthereumAddress'
                     - description: Ethereum address of the rollup smart contract.
+                    - example: "0x777dc4262BCDbf85190C01c996b4C06a461d2430"
                 governanceAddress:
                   allOf:
                     - $ref: '#/components/schemas/EthereumAddress'
                     - description: Ethereum address of the governance mechanism.
+                    - example: "0x667dc4262BCDbf85190C01c996b4C06a461d2430"
                 whitheHackerGroupAddress:
                   allOf:
                     - $ref: '#/components/schemas/EthereumAddress'
                     - description: Ethereum Address that can claim the funds in an emergency when the maximum emergency mode time is exceeded.
+                    - example: "0x557dc4262BCDbf85190C01c996b4C06a461d2430"
                 keeperAddress:
                   allOf:
                     - $ref: '#/components/schemas/EthereumAddress'
                     - description: Ethereum Address that can enable emergency mode and modify the delay to make a withdrawal.
+                    - example: "0x557dc4262BCDbf85190C01c996b4C06a461d2430"
                 withdrawalDelay:
                   allOf:
                     - $ref: '#/components/schemas/EthBlockNum'
                     - description: The time that anyone needs to wait until a withdrawal of the funds is allowed, in Ethereum blocks.
+                    - example: 539573849
                 emergencyModeStartingTime:
                   type: integer
                   description: Ethereum block in which the emergency mode will be activated.
@@ -2140,6 +2203,7 @@ components:
               allOf:
                 - $ref: '#/components/schemas/EthereumAddress'
                 - description: Ethereum address of the HEZ token.
+                - example: "0x444dc4262BCDbf85190C01c996b4C06a461d2430"
             maxTxVerifiers:
               type: integer
               description: Maximum transactions of the verifiers.
@@ -2214,10 +2278,12 @@ components:
               allOf:
                 - $ref: '#/components/schemas/EthereumAddress'
                 - description: Ethereum address of the HEZ token.
+                - example: "0x333dc4262BCDbf85190C01c996b4C06a461d2430"
             rollupAddress:
               allOf:
                 - $ref: '#/components/schemas/EthereumAddress'
                 - description: Ethereum address of the rollup smart contract.
+                - example: "0x222dc4262BCDbf85190C01c996b4C06a461d2430"
             genesisBlockNum:
               allOf:
                 - $ref: '#/components/schemas/EthBlockNum'

cli/node/cfg.example.toml

@@ -6,16 +6,13 @@ Port     = 5432
 Host     = "localhost"
 User     = "hermez"
 Password = "yourpasswordhere"
+Name     = "hermez"
 
 [L2DB]
-Name         = "l2"
 SafetyPeriod = 10
 MaxTxs       = 512
 TTL          = "24h"
 
-[HistoryDB]
-Name = "history"
-
 [Web3]
 URL = "XXX"
 

common/l1tx.go

@@ -29,7 +29,9 @@ type L1Tx struct {
 	LoadAmount      *big.Int
 	EthBlockNum     int64 // Ethereum Block Number in which this L1Tx was added to the queue
 	Type            TxType
-	BatchNum        BatchNum
+	BatchNum        *BatchNum
+	USD             *float64
+	LoadAmountUSD   *float64
 }
 
 // Tx returns a *Tx from the L1Tx
@@ -52,11 +54,13 @@ func (tx *L1Tx) Tx() *Tx {
 		FromBJJ:         tx.FromBJJ,
 		LoadAmount:      tx.LoadAmount,
 		EthBlockNum:     tx.EthBlockNum,
+		USD:             tx.USD,
+		LoadAmountUSD:   tx.LoadAmountUSD,
 	}
 	if tx.LoadAmount != nil {
 		lf := new(big.Float).SetInt(tx.LoadAmount)
 		loadAmountFloat, _ := lf.Float64()
-		genericTx.LoadAmountFloat = loadAmountFloat
+		genericTx.LoadAmountFloat = &loadAmountFloat
 	}
 	return genericTx
 }

common/l2tx.go

@@ -13,7 +13,9 @@ type L2Tx struct {
 	FromIdx     Idx
 	ToIdx       Idx
 	Amount      *big.Int
+	USD         *float64
 	Fee         FeeSelector
+	FeeUSD      *float64
 	Nonce       Nonce
 	Type        TxType
 	EthBlockNum int64 // Ethereum Block Number in which this L2Tx was added to the queue
@@ -23,6 +25,12 @@ type L2Tx struct {
 func (tx *L2Tx) Tx() *Tx {
 	f := new(big.Float).SetInt(tx.Amount)
 	amountFloat, _ := f.Float64()
+	batchNum := new(BatchNum)
+	*batchNum = tx.BatchNum
+	fee := new(FeeSelector)
+	*fee = tx.Fee
+	nonce := new(Nonce)
+	*nonce = tx.Nonce
 	return &Tx{
 		IsL1:        false,
 		TxID:        tx.TxID,
@@ -31,11 +39,13 @@ func (tx *L2Tx) Tx() *Tx {
 		FromIdx:     tx.FromIdx,
 		ToIdx:       tx.ToIdx,
 		Amount:      tx.Amount,
+		USD:         tx.USD,
 		AmountFloat: amountFloat,
-		BatchNum:    tx.BatchNum,
+		BatchNum:    batchNum,
 		EthBlockNum: tx.EthBlockNum,
-		Fee:         tx.Fee,
+		Fee:         fee,
-		Nonce:       tx.Nonce,
+		FeeUSD:      tx.FeeUSD,
+		Nonce:       nonce,
 	}
 }
 

common/pooll2tx.go

@@ -21,7 +21,7 @@ type PoolL2Tx struct {
 	TokenID     TokenID            `meddler:"token_id"`
 	Amount      *big.Int           `meddler:"amount,bigint"` // TODO: change to float16
 	AmountFloat float64            `meddler:"amount_f"`      // TODO: change to float16
-	USD         float64            `meddler:"value_usd"`     // TODO: change to float16
+	USD         *float64           `meddler:"value_usd"`     // TODO: change to float16
 	Fee         FeeSelector        `meddler:"fee"`
 	Nonce       Nonce              `meddler:"nonce"` // effective 40 bits used
 	State       PoolL2TxState      `meddler:"state"`
@@ -37,11 +37,12 @@ type PoolL2Tx struct {
 	RqAmount          *big.Int           `meddler:"rq_amount,bigintnull"` // TODO: change to float16
 	RqFee             FeeSelector        `meddler:"rq_fee,zeroisnull"`
 	RqNonce           uint64             `meddler:"rq_nonce,zeroisnull"` // effective 48 bits used
-	AbsoluteFee       float64            `meddler:"fee_usd,zeroisnull"`
+	AbsoluteFee       *float64           `meddler:"fee_usd"`
-	AbsoluteFeeUpdate time.Time          `meddler:"usd_update,utctimez"`
+	AbsoluteFeeUpdate *time.Time         `meddler:"usd_update,utctime"`
 	Type              TxType             `meddler:"tx_type"`
 	// Extra metadata, may be uninitialized
 	RqTxCompressedData []byte `meddler:"-"` // 253 bits, optional for atomic txs
+	TokenSymbol        string `meddler:"token_symbol"`
 }
 
 // TxCompressedData spec:
@@ -186,8 +187,8 @@ func (tx *PoolL2Tx) Tx() *Tx {
 		FromIdx: tx.FromIdx,
 		ToIdx:   tx.ToIdx,
 		Amount:  tx.Amount,
-		Nonce:   tx.Nonce,
+		Nonce:   &tx.Nonce,
-		Fee:     tx.Fee,
+		Fee:     &tx.Fee,
 		Type:    tx.Type,
 	}
 }

common/token.go

@@ -14,14 +14,14 @@ const tokenIDBytesLen = 4
 
 // Token is a struct that represents an Ethereum token that is supported in Hermez network
 type Token struct {
-	TokenID     TokenID           `meddler:"token_id"`
+	TokenID     TokenID           `json:"id" meddler:"token_id"`
-	EthBlockNum int64             `meddler:"eth_block_num"` // 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
-	EthAddr     ethCommon.Address `meddler:"eth_addr"`
+	EthAddr     ethCommon.Address `json:"ethereumAddress" meddler:"eth_addr"`
-	Name        string            `meddler:"name"`
+	Name        string            `json:"name" meddler:"name"`
-	Symbol      string            `meddler:"symbol"`
+	Symbol      string            `json:"symbol" meddler:"symbol"`
-	Decimals    uint64            `meddler:"decimals"`
+	Decimals    uint64            `json:"decimals" meddler:"decimals"`
-	USD         float64           `meddler:"usd,zeroisnull"`
+	USD         *float64          `json:"USD" meddler:"usd"`
-	USDUpdate   time.Time         `meddler:"usd_update,utctimez"`
+	USDUpdate   *time.Time        `json:"fiatUpdate" meddler:"usd_update,utctime"`
 }
 
 // TokenInfo provides the price of the token in USD

common/tx.go

@@ -41,30 +41,30 @@ const (
 // Tx is a struct used by the TxSelector & BatchBuilder as a generic type generated from L1Tx & 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,zeroisnull"`
+	USD         *float64  `meddler:"amount_usd"`
-	BatchNum    BatchNum `meddler:"batch_num,zeroisnull"` // 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
-	EthBlockNum int64    `meddler:"eth_block_num"`        // 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
 	// L1
 	ToForgeL1TxsNum int64              `meddler:"to_forge_l1_txs_num"` // toForgeL1TxsNum in which the tx was forged / will be forged
 	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
 	FromEthAddr     ethCommon.Address  `meddler:"from_eth_addr"`
 	FromBJJ         *babyjub.PublicKey `meddler:"from_bjj"`
 	LoadAmount      *big.Int           `meddler:"load_amount,bigintnull"`
-	LoadAmountFloat float64            `meddler:"load_amount_f"`
+	LoadAmountFloat *float64           `meddler:"load_amount_f"`
-	LoadAmountUSD   float64            `meddler:"load_amount_usd,zeroisnull"`
+	LoadAmountUSD   *float64           `meddler:"load_amount_usd"`
 	// L2
-	Fee    FeeSelector `meddler:"fee,zeroisnull"`
+	Fee    *FeeSelector `meddler:"fee"`
-	FeeUSD float64     `meddler:"fee_usd,zeroisnull"`
+	FeeUSD *float64     `meddler:"fee_usd"`
-	Nonce  Nonce       `meddler:"nonce,zeroisnull"`
+	Nonce  *Nonce       `meddler:"nonce"`
 }
 
 // L1Tx returns a *L1Tx from the Tx

config/config.go

@@ -36,7 +36,6 @@ type Coordinator struct {
 	ForgerAddress     ethCommon.Address `validate:"required"`
 	ForgeLoopInterval Duration          `validate:"required"`
 	L2DB              struct {
-		Name         string          `validate:"required"`
 		SafetyPeriod common.BatchNum `validate:"required"`
 		MaxTxs       uint32          `validate:"required"`
 		TTL          Duration        `validate:"required"`
@@ -60,9 +59,7 @@ type Node struct {
 		Host     string `validate:"required"`
 		User     string `validate:"required"`
 		Password string `validate:"required"`
-	} `validate:"required"`
+		Name     string `validate:"required"`
-	HistoryDB struct {
-		Name string `validate:"required"`
 	} `validate:"required"`
 	Web3 struct {
 		URL string `validate:"required"`

coordinator/coordinator_test.go

@@ -7,6 +7,7 @@ import (
 	"time"
 
 	"github.com/hermeznetwork/hermez-node/batchbuilder"
+	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"
@@ -26,8 +27,9 @@ func newTestModules(t *testing.T) (*txselector.TxSelector, *batchbuilder.BatchBu
 	assert.Nil(t, err)
 
 	pass := os.Getenv("POSTGRES_PASS")
-	l2DB, err := l2db.NewL2DB(5432, "localhost", "hermez", pass, "l2", 10, 512, 24*time.Hour)
+	db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
 	require.Nil(t, err)
+	l2DB := l2db.NewL2DB(db, 10, 100, 24*time.Hour)
 
 	txselDir, err := ioutil.TempDir("", "tmpTxSelDB")
 	require.Nil(t, err)

db/historydb/historydb.go

@@ -6,16 +6,13 @@ import (
 	"fmt"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
-	"github.com/gobuffalo/packr/v2"
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db"
-	"github.com/hermeznetwork/hermez-node/log"
 	"github.com/iden3/go-iden3-crypto/babyjub"
 	"github.com/jmoiron/sqlx"
 
 	//nolint:errcheck // driver for postgres DB
 	_ "github.com/lib/pq"
-	migrate "github.com/rubenv/sql-migrate"
 	"github.com/russross/meddler"
 )
 
@@ -57,28 +54,8 @@ type BatchData struct {
 }
 
 // NewHistoryDB initialize the DB
-func NewHistoryDB(port int, host, user, password, dbname string) (*HistoryDB, error) {
+func NewHistoryDB(db *sqlx.DB) *HistoryDB {
-	// Connect to DB
+	return &HistoryDB{db: db}
-	psqlconn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable", host, port, user, password, dbname)
-	hdb, err := sqlx.Connect("postgres", psqlconn)
-	if err != nil {
-		return nil, err
-	}
-	// Init meddler
-	db.InitMeddler()
-	meddler.Default = meddler.PostgreSQL
-
-	// Run DB migrations
-	migrations := &migrate.PackrMigrationSource{
-		Box: packr.New("history-migrations", "./migrations"),
-	}
-	nMigrations, err := migrate.Exec(hdb.DB, "postgres", migrations, migrate.Up)
-	if err != nil {
-		return nil, err
-	}
-	log.Debug("HistoryDB applied ", nMigrations, " migrations for ", dbname, " database")
-
-	return &HistoryDB{hdb}, nil
 }
 
 // AddBlock insert a block into the DB
@@ -328,8 +305,14 @@ func (hdb *HistoryDB) GetAccounts() ([]*common.Account, error) {
 	return accs, err
 }
 
-// AddL1Txs inserts L1 txs to the DB
+// AddL1Txs inserts L1 txs to the DB. USD and LoadAmountUSD will be set automatically before storing the tx.
+// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
+// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 func (hdb *HistoryDB) AddL1Txs(l1txs []common.L1Tx) error { return hdb.addL1Txs(hdb.db, l1txs) }
+
+// addL1Txs inserts L1 txs to the DB. USD and LoadAmountUSD will be set automatically before storing the tx.
+// If the tx is originated by a coordinator, BatchNum must be provided. If it's originated by a user,
+// BatchNum should be null, and the value will be setted by a trigger when a batch forges the tx.
 func (hdb *HistoryDB) addL1Txs(d meddler.DB, l1txs []common.L1Tx) error {
 	txs := []common.Tx{}
 	for _, tx := range l1txs {
@@ -338,8 +321,10 @@ func (hdb *HistoryDB) addL1Txs(d meddler.DB, l1txs []common.L1Tx) error {
 	return hdb.addTxs(d, txs)
 }
 
-// AddL2Txs inserts L2 txs to the DB
+// AddL2Txs inserts L2 txs to the DB. USD and FeeUSD will be set automatically before storing the tx.
 func (hdb *HistoryDB) AddL2Txs(l2txs []common.L2Tx) error { return hdb.addL2Txs(hdb.db, l2txs) }
+
+// addL2Txs inserts L2 txs to the DB. USD and FeeUSD will be set automatically before storing the tx.
 func (hdb *HistoryDB) addL2Txs(d meddler.DB, l2txs []common.L2Tx) error {
 	txs := []common.Tx{}
 	for _, tx := range l2txs {
@@ -348,8 +333,6 @@ func (hdb *HistoryDB) addL2Txs(d meddler.DB, l2txs []common.L2Tx) error {
 	return hdb.addTxs(d, txs)
 }
 
-// AddTxs insert L1 txs into the DB
-func (hdb *HistoryDB) AddTxs(txs []common.Tx) error { return hdb.addTxs(hdb.db, txs) }
 func (hdb *HistoryDB) addTxs(d meddler.DB, txs []common.Tx) error {
 	return db.BulkInsert(
 		d,
@@ -381,16 +364,6 @@ func (hdb *HistoryDB) addTxs(d meddler.DB, txs []common.Tx) error {
 	)
 }
 
-// SetBatchNumL1UserTxs sets the batchNum in all the L1UserTxs with toForgeL1TxsNum.
-func (hdb *HistoryDB) SetBatchNumL1UserTxs(toForgeL1TxsNum, batchNum int64) error {
-	return hdb.setBatchNumL1UserTxs(hdb.db, toForgeL1TxsNum, batchNum)
-}
-func (hdb *HistoryDB) setBatchNumL1UserTxs(d meddler.DB, toForgeL1TxsNum, batchNum int64) error {
-	_, err := d.Exec("UPDATE tx SET batch_num = $1 WHERE to_forge_l1_txs_num = $2 AND is_l1 = TRUE AND user_origin = TRUE;",
-		batchNum, toForgeL1TxsNum)
-	return err
-}
-
 // GetTxs returns a list of txs from the DB
 func (hdb *HistoryDB) GetTxs() ([]*common.Tx, error) {
 	var txs []*common.Tx
@@ -413,8 +386,10 @@ func (hdb *HistoryDB) GetHistoryTxs(
 	}
 	var query string
 	var args []interface{}
-	queryStr := `SELECT tx.*, tx.amount_f * token.usd AS current_usd,
+	queryStr := `SELECT tx.*, token.token_id, token.eth_block_num AS token_block,
-	token.symbol, token.usd_update, block.timestamp, count(*) OVER() AS total_items FROM tx 
+	token.eth_addr, token.name, token.symbol, token.decimals, token.usd,
+	token.usd_update, block.timestamp, count(*) OVER() AS total_items 
+	FROM tx 
 	INNER JOIN token ON tx.token_id = token.token_id 
 	INNER JOIN block ON tx.eth_block_num = block.eth_block_num `
 	// Apply filters
@@ -513,17 +488,17 @@ func (hdb *HistoryDB) GetTx(txID common.TxID) (*common.Tx, error) {
 	)
 }
 
-// GetL1UserTxs gets L1 User Txs to be forged in a batch that will create an account
+// // GetL1UserTxs gets L1 User Txs to be forged in a batch that will create an account
-// TODO: This is currently not used.  Figure out if it should be used somewhere or removed.
+// // TODO: This is currently not used.  Figure out if it should be used somewhere or removed.
-func (hdb *HistoryDB) GetL1UserTxs(toForgeL1TxsNum int64) ([]*common.Tx, error) {
+// func (hdb *HistoryDB) GetL1UserTxs(toForgeL1TxsNum int64) ([]*common.Tx, error) {
-	var txs []*common.Tx
+// 	var txs []*common.Tx
-	err := meddler.QueryAll(
+// 	err := meddler.QueryAll(
-		hdb.db, &txs,
+// 		hdb.db, &txs,
-		"SELECT * FROM tx WHERE to_forge_l1_txs_num = $1 AND is_l1 = TRUE AND user_origin = TRUE;",
+// 		"SELECT * FROM tx WHERE to_forge_l1_txs_num = $1 AND is_l1 = TRUE AND user_origin = TRUE;",
-		toForgeL1TxsNum,
+// 		toForgeL1TxsNum,
-	)
+// 	)
-	return txs, err
+// 	return txs, err
-}
+// }
 
 // TODO: Think about chaning all the queries that return a last value, to queries that return the next valid value.
 
@@ -586,11 +561,15 @@ func (hdb *HistoryDB) AddBlockSCData(blockData *BlockData) (err error) {
 
 	// Add Batches
 	for _, batch := range blockData.Batches {
+		// Add Batch: this will trigger an update on the DB
+		// that will set the batch num of forged L1 txs in this batch
+		err = hdb.addBatch(txn, batch.Batch)
+		if err != nil {
+			return err
+		}
+
+		// Add unforged l1 Txs
 		if batch.L1Batch {
-			err = hdb.setBatchNumL1UserTxs(txn, batch.Batch.ForgeL1TxsNum, int64(batch.Batch.BatchNum))
-			if err != nil {
-				return err
-			}
 			if len(batch.L1CoordinatorTxs) > 0 {
 				err = hdb.addL1Txs(txn, batch.L1CoordinatorTxs)
 				if err != nil {
@@ -623,19 +602,8 @@ func (hdb *HistoryDB) AddBlockSCData(blockData *BlockData) (err error) {
 			}
 		}
 
-		// Add Batch
-		err = hdb.addBatch(txn, batch.Batch)
-		if err != nil {
-			return err
-		}
-
 		// TODO: INSERT CONTRACTS VARS
 	}
 
 	return txn.Commit()
 }
-
-// Close frees the resources used by HistoryDB
-func (hdb *HistoryDB) Close() error {
-	return hdb.db.Close()
-}

db/historydb/historydb_test.go

@@ -1,7 +1,6 @@
 package historydb
 
 import (
-	"fmt"
 	"math/big"
 	"os"
 	"testing"
@@ -9,6 +8,8 @@ import (
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/hermeznetwork/hermez-node/common"
+	dbUtils "github.com/hermeznetwork/hermez-node/db"
+	"github.com/hermeznetwork/hermez-node/log"
 	"github.com/hermeznetwork/hermez-node/test"
 	"github.com/iden3/go-iden3-crypto/babyjub"
 	"github.com/stretchr/testify/assert"
@@ -26,17 +27,20 @@ var historyDB *HistoryDB
 
 func TestMain(m *testing.M) {
 	// init DB
-	var err error
 	pass := os.Getenv("POSTGRES_PASS")
-	historyDB, err = NewHistoryDB(5432, "localhost", "hermez", pass, "history")
+	db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
+	if err != nil {
+		panic(err)
+	}
+	historyDB = NewHistoryDB(db)
 	if err != nil {
 		panic(err)
 	}
 	// Run tests
 	result := m.Run()
 	// Close DB
-	if err := historyDB.Close(); err != nil {
+	if err := db.Close(); err != nil {
-		fmt.Println("Error closing the history DB:", err)
+		log.Error("Error closing the history DB:", err)
 	}
 	os.Exit(result)
 }
@@ -145,15 +149,6 @@ func TestTokens(t *testing.T) {
 	tokens := test.GenTokens(nTokens, blocks)
 	err := historyDB.AddTokens(tokens)
 	assert.NoError(t, err)
-	// Update price of generated tokens without price
-	for i := 0; i < len(tokens); i++ {
-		if tokens[i].USD == 0 {
-			value := 3.33 + float64(i)
-			tokens[i].USD = value
-			err := historyDB.UpdateTokenValue(tokens[i].TokenID, value)
-			assert.NoError(t, err)
-		}
-	}
 	// Fetch tokens
 	fetchedTokens, err := historyDB.GetTokens()
 	assert.NoError(t, err)
@@ -166,7 +161,11 @@ func TestTokens(t *testing.T) {
 		assert.Equal(t, tokens[i].Name, token.Name)
 		assert.Equal(t, tokens[i].Symbol, token.Symbol)
 		assert.Equal(t, tokens[i].USD, token.USD)
-		assert.Greater(t, int64(1*time.Second), int64(time.Since(token.USDUpdate)))
+		if token.USDUpdate != nil {
+			assert.Greater(t, int64(1*time.Second), int64(time.Since(*token.USDUpdate)))
+		} else {
+			assert.Equal(t, tokens[i].USDUpdate, token.USDUpdate)
+		}
 	}
 }
 
@@ -205,12 +204,8 @@ func TestTxs(t *testing.T) {
 	// Prepare blocks in the DB
 	blocks := setTestBlocks(fromBlock, toBlock)
 	// Generate fake tokens
-	const nTokens = 5
+	const nTokens = 500
-	const tokenValue = 1.23456
 	tokens := test.GenTokens(nTokens, blocks)
-	for i := 0; i < len(tokens); i++ {
-		tokens[i].USD = tokenValue
-	}
 	err := historyDB.AddTokens(tokens)
 	assert.NoError(t, err)
 	// Generate fake batches
@@ -224,60 +219,17 @@ func TestTxs(t *testing.T) {
 	err = historyDB.AddAccounts(accs)
 	assert.NoError(t, err)
 	// Generate fake L1 txs
-	const nL1s = 30
+	const nL1s = 64
 	_, l1txs := test.GenL1Txs(0, nL1s, 0, nil, accs, tokens, blocks, batches)
 	err = historyDB.AddL1Txs(l1txs)
 	assert.NoError(t, err)
 	// Generate fake L2 txs
-	const nL2s = 20
+	const nL2s = 2048 - nL1s
 	_, l2txs := test.GenL2Txs(0, nL2s, 0, nil, accs, tokens, blocks, batches)
 	err = historyDB.AddL2Txs(l2txs)
 	assert.NoError(t, err)
 	// Compare fetched txs vs generated txs.
-	for i := 0; i < len(l1txs); i++ {
+	fetchAndAssertTxs(t, l1txs, l2txs)
-		tx := l1txs[i].Tx()
-		fetchedTx, err := historyDB.GetTx(tx.TxID)
-		assert.NoError(t, err)
-		tx.USD = tokenValue * tx.AmountFloat
-		if fetchedTx.USD > tx.USD {
-			assert.Less(t, 0.999, tx.USD/fetchedTx.USD)
-		} else {
-			assert.Less(t, 0.999, fetchedTx.USD/tx.USD)
-		}
-		tx.LoadAmountUSD = tokenValue * tx.LoadAmountFloat
-		if fetchedTx.LoadAmountUSD > tx.LoadAmountUSD {
-			assert.Less(t, 0.999, tx.LoadAmountUSD/fetchedTx.LoadAmountUSD)
-		} else {
-			assert.Less(t, 0.999, fetchedTx.LoadAmountUSD/tx.LoadAmountUSD)
-		}
-		tx.LoadAmountUSD = 0
-		tx.USD = 0
-		fetchedTx.LoadAmountUSD = 0
-		fetchedTx.USD = 0
-		assert.Equal(t, tx, fetchedTx)
-	}
-	for i := 0; i < len(l2txs); i++ {
-		tx := l2txs[i].Tx()
-		fetchedTx, err := historyDB.GetTx(tx.TxID)
-		assert.NoError(t, err)
-		tx.USD = tokenValue * tx.AmountFloat
-		if fetchedTx.USD > tx.USD {
-			assert.Less(t, 0.999, tx.USD/fetchedTx.USD)
-		} else {
-			assert.Less(t, 0.999, fetchedTx.USD/tx.USD)
-		}
-		tx.FeeUSD = tx.USD * tx.Fee.Percentage()
-		if fetchedTx.FeeUSD > tx.FeeUSD {
-			assert.Less(t, 0.999, tx.FeeUSD/fetchedTx.FeeUSD)
-		} else if fetchedTx.FeeUSD < tx.FeeUSD {
-			assert.Less(t, 0.999, fetchedTx.FeeUSD/tx.FeeUSD)
-		}
-		tx.FeeUSD = 0
-		tx.USD = 0
-		fetchedTx.FeeUSD = 0
-		fetchedTx.USD = 0
-		assert.Equal(t, tx, fetchedTx)
-	}
 	// Test trigger: L1 integrity
 	// from_eth_addr can't be null
 	l1txs[0].FromEthAddr = ethCommon.Address{}
@@ -304,23 +256,75 @@ func TestTxs(t *testing.T) {
 	l2txs[0].Nonce = 0
 	err = historyDB.AddL2Txs(l2txs)
 	assert.Error(t, err)
+	// Test trigger: forge L1 txs
+	// add next batch to DB
+	batchNum, toForgeL1TxsNum := test.GetNextToForgeNumAndBatch(batches)
+	batch := batches[0]
+	batch.BatchNum = batchNum
+	batch.ForgeL1TxsNum = toForgeL1TxsNum
+	assert.NoError(t, historyDB.AddBatch(&batch)) // This should update nL1s / 2 rows
+	// Set batch num in txs that should have been marked as forged in the DB
+	for i := 0; i < len(l1txs); i++ {
+		fetchedTx, err := historyDB.GetTx(l1txs[i].TxID)
+		assert.NoError(t, err)
+		if l1txs[i].ToForgeL1TxsNum == toForgeL1TxsNum {
+			assert.Equal(t, batchNum, *fetchedTx.BatchNum)
+		} else {
+			if fetchedTx.BatchNum != nil {
+				assert.NotEqual(t, batchNum, *fetchedTx.BatchNum)
+			}
+		}
+	}
+
 	// Test helper functions for Synchronizer
-	txs, err := historyDB.GetL1UserTxs(2)
+	// GetLastTxsPosition
+	expectedPosition := -1
+	var choosenToForgeL1TxsNum int64 = -1
+	for _, tx := range l1txs {
+		if choosenToForgeL1TxsNum == -1 && tx.ToForgeL1TxsNum > 0 {
+			choosenToForgeL1TxsNum = tx.ToForgeL1TxsNum
+			expectedPosition = tx.Position
+		} else if choosenToForgeL1TxsNum == tx.ToForgeL1TxsNum && expectedPosition < tx.Position {
+			expectedPosition = tx.Position
+		}
+	}
+	position, err := historyDB.GetLastTxsPosition(choosenToForgeL1TxsNum)
 	assert.NoError(t, err)
-	assert.NotZero(t, len(txs))
+	assert.Equal(t, expectedPosition, position)
-	position, err := historyDB.GetLastTxsPosition(2)
+
-	assert.NoError(t, err)
+	// GetL1UserTxs: not needed? tests were broken
-	assert.Equal(t, 22, position)
+	// txs, err := historyDB.GetL1UserTxs(2)
-	// Test Update L1 TX Batch_num
+	// assert.NoError(t, err)
-	assert.Equal(t, common.BatchNum(0), txs[0].BatchNum)
+	// assert.NotZero(t, len(txs))
-	txs[0].BatchNum = common.BatchNum(1)
+	// assert.NoError(t, err)
-	// err = historyDB.UpdateTxsBatchNum(txs)
+	// assert.Equal(t, 22, position)
-	err = historyDB.SetBatchNumL1UserTxs(2, 1)
+	// // Test Update L1 TX Batch_num
-	assert.NoError(t, err)
+	// assert.Equal(t, common.BatchNum(0), txs[0].BatchNum)
-	txs, err = historyDB.GetL1UserTxs(2)
+	// txs[0].BatchNum = common.BatchNum(1)
-	assert.NoError(t, err)
+	// txs, err = historyDB.GetL1UserTxs(2)
-	assert.NotZero(t, len(txs))
+	// assert.NoError(t, err)
-	assert.Equal(t, common.BatchNum(1), txs[0].BatchNum)
+	// assert.NotZero(t, len(txs))
+	// assert.Equal(t, common.BatchNum(1), txs[0].BatchNum)
+}
+
+func fetchAndAssertTxs(t *testing.T, l1txs []common.L1Tx, l2txs []common.L2Tx) {
+	for i := 0; i < len(l1txs); i++ {
+		tx := l1txs[i].Tx()
+		fetchedTx, err := historyDB.GetTx(tx.TxID)
+		assert.NoError(t, err)
+		test.AssertUSD(t, tx.USD, fetchedTx.USD)
+		test.AssertUSD(t, tx.LoadAmountUSD, fetchedTx.LoadAmountUSD)
+		assert.Equal(t, tx, fetchedTx)
+	}
+	for i := 0; i < len(l2txs); i++ {
+		tx := l2txs[i].Tx()
+		fetchedTx, err := historyDB.GetTx(tx.TxID)
+		tx.TokenID = fetchedTx.TokenID
+		assert.NoError(t, err)
+		test.AssertUSD(t, fetchedTx.USD, tx.USD)
+		test.AssertUSD(t, fetchedTx.FeeUSD, tx.FeeUSD)
+		assert.Equal(t, tx, fetchedTx)
+	}
 }
 
 func TestExitTree(t *testing.T) {

db/historydb/migrations/001_init.sql

@@ -1,209 +0,0 @@
--- +migrate Up
-CREATE TABLE block (
-    eth_block_num BIGINT PRIMARY KEY,
-    timestamp TIMESTAMP WITHOUT TIME ZONE NOT NULL,
-    hash BYTEA NOT NULL
-);
-
-CREATE TABLE coordinator (
-    forger_addr BYTEA NOT NULL,
-    eth_block_num BIGINT NOT NULL REFERENCES block (eth_block_num) ON DELETE CASCADE,
-    withdraw_addr BYTEA NOT NULL,
-    url VARCHAR(200) NOT NULL,
-    PRIMARY KEY (forger_addr, eth_block_num)
-);
-
-CREATE TABLE batch (
-    batch_num BIGINT PRIMARY KEY,
-    eth_block_num BIGINT REFERENCES block (eth_block_num) ON DELETE CASCADE,
-    forger_addr BYTEA NOT NULL, -- fake foreign key for coordinator
-    fees_collected BYTEA NOT NULL,
-    state_root BYTEA NOT NULL,
-    num_accounts BIGINT NOT NULL,
-    exit_root BYTEA NOT NULL,
-    forge_l1_txs_num BIGINT,
-    slot_num BIGINT NOT NULL
-);
-
-CREATE TABLE exit_tree (
-    batch_num BIGINT REFERENCES batch (batch_num) ON DELETE CASCADE,
-    account_idx BIGINT,
-    merkle_proof BYTEA NOT NULL,
-    balance BYTEA NOT NULL,
-    instant_withdrawn BIGINT REFERENCES batch (batch_num) ON DELETE SET NULL,
-    delayed_withdraw_request BIGINT REFERENCES batch (batch_num) ON DELETE SET NULL,
-    delayed_withdrawn BIGINT REFERENCES batch (batch_num) ON DELETE SET NULL,
-    PRIMARY KEY (batch_num, account_idx)
-);
-
-CREATE TABLE bid (
-    slot_num BIGINT NOT NULL,
-    bid_value BYTEA NOT NULL,
-    eth_block_num BIGINT NOT NULL REFERENCES block (eth_block_num) ON DELETE CASCADE,
-    forger_addr BYTEA NOT NULL, -- fake foreign key for coordinator
-    PRIMARY KEY (slot_num, bid_value)
-);
-
-CREATE TABLE token (
-    token_id INT PRIMARY KEY,
-    eth_block_num BIGINT NOT NULL REFERENCES block (eth_block_num) ON DELETE CASCADE,
-    eth_addr BYTEA UNIQUE NOT NULL,
-    name VARCHAR(20) NOT NULL,
-    symbol VARCHAR(10) NOT NULL,
-    decimals INT NOT NULL,
-    usd NUMERIC,
-    usd_update TIMESTAMP
-);
-
--- +migrate StatementBegin
-CREATE FUNCTION set_token_usd_update() 
-    RETURNS TRIGGER 
-AS 
-$BODY$
-BEGIN
-    IF NEW."usd" IS NOT NULL AND NEW."usd_update" IS NULL THEN
-        NEW."usd_update" = timezone('utc', now());
-    END IF;
-    RETURN NEW;
-END;
-$BODY$
-LANGUAGE plpgsql;
--- +migrate StatementEnd
-CREATE TRIGGER trigger_token_usd_update BEFORE UPDATE OR INSERT ON token
-FOR EACH ROW EXECUTE PROCEDURE set_token_usd_update();
-
-CREATE TABLE tx (
-    -- Generic TX
-    is_l1 BOOLEAN NOT NULL,
-    id BYTEA PRIMARY KEY,
-    type VARCHAR(40) NOT NULL,
-    position INT NOT NULL,
-    from_idx BIGINT NOT NULL,
-    to_idx BIGINT NOT NULL,
-    amount BYTEA NOT NULL,
-    amount_f NUMERIC NOT NULL,
-    token_id INT NOT NULL REFERENCES token (token_id),
-    amount_usd NUMERIC, -- Value of the amount in USD at the moment the tx was inserted in the DB
-    batch_num BIGINT REFERENCES batch (batch_num) ON DELETE SET NULL, -- Can be NULL in the case of L1 txs that are on the queue but not forged yet.
-    eth_block_num BIGINT NOT NULL REFERENCES block (eth_block_num) ON DELETE CASCADE,
-    -- L1
-    to_forge_l1_txs_num BIGINT,
-    user_origin BOOLEAN,
-    from_eth_addr BYTEA,
-    from_bjj BYTEA,
-    load_amount BYTEA,
-    load_amount_f NUMERIC,
-    load_amount_usd NUMERIC,
-    -- L2
-    fee INT,
-    fee_usd NUMERIC,
-    nonce BIGINT
-);
-
-CREATE INDEX tx_order ON tx (batch_num, position);
-
--- +migrate StatementBegin
-CREATE FUNCTION set_tx()
-    RETURNS TRIGGER 
-AS 
-$BODY$
-DECLARE token_value NUMERIC := (SELECT usd FROM token WHERE token_id = NEW.token_id);
-BEGIN
-    -- Validate L1/L2 constrains
-    IF NEW.is_l1 AND (( -- L1 mandatory fields
-        NEW.user_origin IS NULL OR
-        NEW.from_eth_addr IS NULL OR
-        NEW.from_bjj IS NULL OR
-        NEW.load_amount IS NULL OR
-        NEW.load_amount_f IS NULL
-    ) OR (NOT NEW.user_origin AND NEW.batch_num IS NULL)) THEN -- If is Coordinator L1, must include batch_num
-        RAISE EXCEPTION 'Invalid L1 tx.';
-    ELSIF NOT NEW.is_l1 THEN
-        IF NEW.fee IS NULL THEN
-            NEW.fee = (SELECT 0);
-        END IF;
-        IF NEW.batch_num IS NULL OR NEW.nonce IS NULL THEN
-            RAISE EXCEPTION 'Invalid L2 tx.';
-        END IF;
-    END IF;
-    -- If is L2, add token_id
-    IF NEW.token_id IS NULL THEN
-        NEW."token_id" = (SELECT token_id FROM account WHERE idx = NEW."from_idx");
-    END IF;
-    -- Set value_usd
-    NEW."amount_usd" = (SELECT token_value * NEW.amount_f);
-    NEW."load_amount_usd" = (SELECT token_value * NEW.load_amount_f);
-    IF NOT NEW.is_l1 THEN
-        NEW."fee_usd" = (SELECT token_value * NEW.amount_f * CASE
-            WHEN NEW.fee = 0 THEN 0	
-            WHEN NEW.fee >= 1 AND NEW.fee <= 32 THEN POWER(10,-24+(NEW.fee::float/2))	
-            WHEN NEW.fee >= 33 AND NEW.fee <= 223 THEN POWER(10,-8+(0.041666666666667*(NEW.fee::float-32)))	
-            WHEN NEW.fee >= 224 AND NEW.fee <= 255 THEN POWER(10,NEW.fee-224) END);
-    END IF;
-    RETURN NEW;
-END;
-$BODY$
-LANGUAGE plpgsql;
--- +migrate StatementEnd
-CREATE TRIGGER trigger_set_tx BEFORE INSERT ON tx
-FOR EACH ROW EXECUTE PROCEDURE set_tx();
-
--- +migrate StatementBegin
-CREATE FUNCTION forge_l1_user_txs() 
-    RETURNS TRIGGER 
-AS 
-$BODY$
-BEGIN
-    IF NEW.forge_l1_txs_num IS NOT NULL THEN
-        UPDATE tx 
-        SET batch_num = NEW.batch_num
-        WHERE user_origin AND NEW.forge_l1_txs_num = to_forge_l1_txs_num;
-    END IF;
-    RETURN NEW;
-END;
-$BODY$
-LANGUAGE plpgsql;
--- +migrate StatementEnd
-CREATE TRIGGER trigger_forge_l1_txs AFTER INSERT ON batch
-FOR EACH ROW EXECUTE PROCEDURE forge_l1_user_txs();
-
-CREATE TABLE account (
-    idx BIGINT PRIMARY KEY,
-    token_id INT NOT NULL REFERENCES token (token_id) ON DELETE CASCADE,
-    batch_num BIGINT NOT NULL REFERENCES batch (batch_num) ON DELETE CASCADE,
-    bjj BYTEA NOT NULL,
-    eth_addr BYTEA NOT NULL
-);
-
-CREATE TABLE rollup_vars (
-    eth_block_num BIGINT PRIMARY KEY REFERENCES block (eth_block_num) ON DELETE CASCADE,
-    forge_l1_timeout BYTEA NOT NULL,
-    fee_l1_user_tx BYTEA NOT NULL,
-    fee_add_token BYTEA NOT NULL,
-    tokens_hez BYTEA NOT NULL,
-    governance BYTEA NOT NULL
-);
-
-CREATE TABLE consensus_vars (
-    eth_block_num BIGINT PRIMARY KEY REFERENCES block (eth_block_num) ON DELETE CASCADE,
-    slot_deadline INT NOT NULL,
-    close_auction_slots INT NOT NULL,
-    open_auction_slots INT NOT NULL,
-    min_bid_slots VARCHAR(200) NOT NULL,
-    outbidding INT NOT NULL,
-    donation_address BYTEA NOT NULL,
-    governance_address BYTEA NOT NULL,
-    allocation_ratio VARCHAR(200)
-);
-
--- +migrate Down
-DROP TABLE consensus_vars;
-DROP TABLE rollup_vars;
-DROP TABLE account;
-DROP TABLE tx;
-DROP TABLE token;
-DROP TABLE bid;
-DROP TABLE exit_tree;
-DROP TABLE batch;
-DROP TABLE coordinator;
-DROP TABLE block;

db/historydb/views.go

@@ -13,34 +13,38 @@ import (
 // required by the API, and extracted by joining block and token tables
 type HistoryTx struct {
 	// Generic
-	IsL1        bool            `meddler:"is_l1"`
+	IsL1        bool             `meddler:"is_l1"`
-	TxID        common.TxID     `meddler:"id"`
+	TxID        common.TxID      `meddler:"id"`
-	Type        common.TxType   `meddler:"type"`
+	Type        common.TxType    `meddler:"type"`
-	Position    int             `meddler:"position"`
+	Position    int              `meddler:"position"`
-	FromIdx     common.Idx      `meddler:"from_idx"`
+	FromIdx     common.Idx       `meddler:"from_idx"`
-	ToIdx       common.Idx      `meddler:"to_idx"`
+	ToIdx       common.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     common.TokenID  `meddler:"token_id"`
+	HistoricUSD *float64         `meddler:"amount_usd"`
-	USD         float64         `meddler:"amount_usd,zeroisnull"`
+	BatchNum    *common.BatchNum `meddler:"batch_num"`     // batchNum in which this tx was forged. If the tx is L2, this must be != 0
-	BatchNum    common.BatchNum `meddler:"batch_num,zeroisnull"` // batchNum in which this tx was forged. If the tx is L2, this must be != 0
+	EthBlockNum int64            `meddler:"eth_block_num"` // 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
 	// L1
-	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"` // toForgeL1TxsNum in which the tx was forged / will be forged
-	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            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
-	FromEthAddr     ethCommon.Address  `meddler:"from_eth_addr"`
+	FromEthAddr           ethCommon.Address  `meddler:"from_eth_addr"`
-	FromBJJ         *babyjub.PublicKey `meddler:"from_bjj"`
+	FromBJJ               *babyjub.PublicKey `meddler:"from_bjj"`
-	LoadAmount      *big.Int           `meddler:"load_amount,bigintnull"`
+	LoadAmount            *big.Int           `meddler:"load_amount,bigintnull"`
-	LoadAmountFloat float64            `meddler:"load_amount_f"`
+	LoadAmountFloat       *float64           `meddler:"load_amount_f"`
-	LoadAmountUSD   float64            `meddler:"load_amount_usd,zeroisnull"`
+	HistoricLoadAmountUSD *float64           `meddler:"load_amount_usd"`
 	// L2
-	Fee    common.FeeSelector `meddler:"fee,zeroisnull"`
+	Fee            *common.FeeSelector `meddler:"fee"`
-	FeeUSD float64            `meddler:"fee_usd,zeroisnull"`
+	HistoricFeeUSD *float64            `meddler:"fee_usd"`
-	Nonce  common.Nonce       `meddler:"nonce,zeroisnull"`
+	Nonce          *common.Nonce       `meddler:"nonce"`
 	// API extras
-	Timestamp   time.Time `meddler:"timestamp,utctime"`
+	Timestamp        time.Time         `meddler:"timestamp,utctime"`
-	TokenSymbol string    `meddler:"symbol"`
+	TotalItems       int               `meddler:"total_items"`
-	CurrentUSD  float64   `meddler:"current_usd"`
+	TokenID          common.TokenID    `meddler:"token_id"`
-	USDUpdate   time.Time `meddler:"usd_update,utctime"`
+	TokenEthBlockNum int64             `meddler:"token_block"`
-	TotalItems  int       `meddler:"total_items"`
+	TokenEthAddr     ethCommon.Address `meddler:"eth_addr"`
+	TokenName        string            `meddler:"name"`
+	TokenSymbol      string            `meddler:"symbol"`
+	TokenDecimals    uint64            `meddler:"decimals"`
+	TokenUSD         *float64          `meddler:"usd"`
+	TokenUSDUpdate   *time.Time        `meddler:"usd_update"`
 }

db/l2db/l2db.go

@@ -1,19 +1,16 @@
 package l2db
 
 import (
-	"fmt"
+	"math/big"
 	"time"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
-	"github.com/gobuffalo/packr/v2"
 	"github.com/hermeznetwork/hermez-node/common"
-	"github.com/hermeznetwork/hermez-node/db"
+	"github.com/iden3/go-iden3-crypto/babyjub"
-	"github.com/hermeznetwork/hermez-node/log"
 	"github.com/jmoiron/sqlx"
 
 	//nolint:errcheck // driver for postgres DB
 	_ "github.com/lib/pq"
-	migrate "github.com/rubenv/sql-migrate"
 	"github.com/russross/meddler"
 )
 
@@ -29,40 +26,15 @@ type L2DB struct {
 }
 
 // NewL2DB creates a L2DB.
-// To create it, it's needed postgres configuration, safety period expressed in batches,
+// To create it, it's needed db connection, safety period expressed in batches,
 // maxTxs that the DB should have and TTL (time to live) for pending txs.
-func NewL2DB(
+func NewL2DB(db *sqlx.DB, safetyPeriod common.BatchNum, maxTxs uint32, TTL time.Duration) *L2DB {
-	port int, host, user, password, dbname string,
-	safetyPeriod common.BatchNum,
-	maxTxs uint32,
-	TTL time.Duration,
-) (*L2DB, error) {
-	// init meddler
-	db.InitMeddler()
-	meddler.Default = meddler.PostgreSQL
-	// Stablish DB connection
-	psqlconn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable", host, port, user, password, dbname)
-	db, err := sqlx.Connect("postgres", psqlconn)
-	if err != nil {
-		return nil, err
-	}
-
-	// Run DB migrations
-	migrations := &migrate.PackrMigrationSource{
-		Box: packr.New("l2db-migrations", "./migrations"),
-	}
-	nMigrations, err := migrate.Exec(db.DB, "postgres", migrations, migrate.Up)
-	if err != nil {
-		return nil, err
-	}
-	log.Debug("L2DB applied ", nMigrations, " migrations for ", dbname, " database")
-
 	return &L2DB{
 		db:           db,
 		safetyPeriod: safetyPeriod,
 		ttl:          TTL,
 		maxTxs:       maxTxs,
-	}, nil
+	}
 }
 
 // DB returns a pointer to the L2DB.db. This method should be used only for
@@ -86,27 +58,82 @@ func (l2db *L2DB) GetAccountCreationAuth(addr ethCommon.Address) (*common.Accoun
 	)
 }
 
-// AddTx inserts a tx into the L2DB
+// AddTxTest inserts a tx into the L2DB. This is useful for test purposes,
-func (l2db *L2DB) AddTx(tx *common.PoolL2Tx) error {
+// but in production txs will only be inserted through the API (method TBD)
-	return meddler.Insert(l2db.db, "tx_pool", tx)
+func (l2db *L2DB) AddTxTest(tx *common.PoolL2Tx) error {
+	type withouUSD struct {
+		TxID        common.TxID          `meddler:"tx_id"`
+		FromIdx     common.Idx           `meddler:"from_idx"`
+		ToIdx       common.Idx           `meddler:"to_idx"`
+		ToEthAddr   ethCommon.Address    `meddler:"to_eth_addr"`
+		ToBJJ       *babyjub.PublicKey   `meddler:"to_bjj"`
+		TokenID     common.TokenID       `meddler:"token_id"`
+		Amount      *big.Int             `meddler:"amount,bigint"`
+		AmountFloat float64              `meddler:"amount_f"`
+		Fee         common.FeeSelector   `meddler:"fee"`
+		Nonce       common.Nonce         `meddler:"nonce"`
+		State       common.PoolL2TxState `meddler:"state"`
+		Signature   *babyjub.Signature   `meddler:"signature"`
+		Timestamp   time.Time            `meddler:"timestamp,utctime"`
+		BatchNum    common.BatchNum      `meddler:"batch_num,zeroisnull"`
+		RqFromIdx   common.Idx           `meddler:"rq_from_idx,zeroisnull"`
+		RqToIdx     common.Idx           `meddler:"rq_to_idx,zeroisnull"`
+		RqToEthAddr ethCommon.Address    `meddler:"rq_to_eth_addr"`
+		RqToBJJ     *babyjub.PublicKey   `meddler:"rq_to_bjj"`
+		RqTokenID   common.TokenID       `meddler:"rq_token_id,zeroisnull"`
+		RqAmount    *big.Int             `meddler:"rq_amount,bigintnull"`
+		RqFee       common.FeeSelector   `meddler:"rq_fee,zeroisnull"`
+		RqNonce     uint64               `meddler:"rq_nonce,zeroisnull"`
+		Type        common.TxType        `meddler:"tx_type"`
+	}
+	return meddler.Insert(l2db.db, "tx_pool", &withouUSD{
+		TxID:        tx.TxID,
+		FromIdx:     tx.FromIdx,
+		ToIdx:       tx.ToIdx,
+		ToEthAddr:   tx.ToEthAddr,
+		ToBJJ:       tx.ToBJJ,
+		TokenID:     tx.TokenID,
+		Amount:      tx.Amount,
+		AmountFloat: tx.AmountFloat,
+		Fee:         tx.Fee,
+		Nonce:       tx.Nonce,
+		State:       tx.State,
+		Signature:   tx.Signature,
+		Timestamp:   tx.Timestamp,
+		BatchNum:    tx.BatchNum,
+		RqFromIdx:   tx.RqFromIdx,
+		RqToIdx:     tx.RqToIdx,
+		RqToEthAddr: tx.RqToEthAddr,
+		RqToBJJ:     tx.RqToBJJ,
+		RqTokenID:   tx.RqTokenID,
+		RqAmount:    tx.RqAmount,
+		RqFee:       tx.RqFee,
+		RqNonce:     tx.RqNonce,
+		Type:        tx.Type,
+	})
 }
 
+// selectPoolTx select part of queries to get common.PoolL2Tx
+const selectPoolTx = `SELECT tx_pool.*, token.usd * tx_pool.amount_f AS value_usd, 
+fee_percentage(tx_pool.fee::NUMERIC) * token.usd * tx_pool.amount_f AS fee_usd, token.usd_update, 
+token.symbol AS token_symbol FROM tx_pool INNER JOIN token ON tx_pool.token_id = token.token_id `
+
 // GetTx return the specified Tx
 func (l2db *L2DB) GetTx(txID common.TxID) (*common.PoolL2Tx, error) {
 	tx := new(common.PoolL2Tx)
 	return tx, meddler.QueryRow(
 		l2db.db, tx,
-		"SELECT * FROM tx_pool WHERE tx_id = $1;",
+		selectPoolTx+"WHERE tx_id = $1;",
 		txID,
 	)
 }
 
-// GetPendingTxs return all the pending txs of the L2DB
+// GetPendingTxs return all the pending txs of the L2DB, that have a non NULL AbsoluteFee
 func (l2db *L2DB) GetPendingTxs() ([]*common.PoolL2Tx, error) {
 	var txs []*common.PoolL2Tx
 	err := meddler.QueryAll(
 		l2db.db, &txs,
-		"SELECT * FROM tx_pool WHERE state = $1",
+		selectPoolTx+"WHERE state = $1 AND token.usd IS NOT NULL",
 		common.PoolL2TxStatePending,
 	)
 	return txs, err
@@ -202,40 +229,6 @@ func (l2db *L2DB) CheckNonces(updatedAccounts []common.Account, batchNum common.
 	return txn.Commit()
 }
 
-// UpdateTxValue updates the absolute fee and value of txs given a token list that include their price in USD
-func (l2db *L2DB) UpdateTxValue(tokens []common.Token) (err error) {
-	// WARNING: this is very slow and should be optimized
-	txn, err := l2db.db.Begin()
-	if err != nil {
-		return err
-	}
-	defer func() {
-		// Rollback the transaction if there was an error.
-		if err != nil {
-			err = txn.Rollback()
-		}
-	}()
-	now := time.Now()
-	for i := 0; i < len(tokens); i++ {
-		_, err = txn.Exec(
-			`UPDATE tx_pool
-			SET usd_update = $1, value_usd = amount_f * $2, fee_usd = $2 * amount_f * CASE
-				WHEN fee = 0 THEN 0	
-				WHEN fee >= 1 AND fee <= 32 THEN POWER(10,-24+(fee::float/2))	
-				WHEN fee >= 33 AND fee <= 223 THEN POWER(10,-8+(0.041666666666667*(fee::float-32)))	
-				WHEN fee >= 224 AND fee <= 255 THEN POWER(10,fee-224) END
-			WHERE token_id = $3;`,
-			now,
-			tokens[i].USD,
-			tokens[i].TokenID,
-		)
-		if err != nil {
-			return err
-		}
-	}
-	return txn.Commit()
-}
-
 // Reorg updates the state of txs that were updated in a batch that has been discarted due to a blockchain reorg.
 // The state of the affected txs can change form Forged -> Pending or from Invalid -> Pending
 func (l2db *L2DB) Reorg(lastValidBatch common.BatchNum) error {
@@ -286,8 +279,3 @@ func (l2db *L2DB) Purge(currentBatchNum common.BatchNum) (err error) {
 	}
 	return txn.Commit()
 }
-
-// Close frees the resources used by the L2DB
-func (l2db *L2DB) Close() error {
-	return l2db.db.Close()
-}

db/l2db/l2db_test.go

@@ -1,79 +1,110 @@
 package l2db
 
 import (
-	"fmt"
-	"math"
 	"os"
 	"testing"
 	"time"
 
 	"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/log"
 	"github.com/hermeznetwork/hermez-node/test"
+	"github.com/jmoiron/sqlx"
 	"github.com/stretchr/testify/assert"
 )
 
 var l2DB *L2DB
+var tokens []common.Token
 
 func TestMain(m *testing.M) {
 	// init DB
-	var err error
 	pass := os.Getenv("POSTGRES_PASS")
-	l2DB, err = NewL2DB(5432, "localhost", "hermez", pass, "l2", 10, 100, 24*time.Hour)
+	db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
+	if err != nil {
+		panic(err)
+	}
+	l2DB = NewL2DB(db, 10, 100, 24*time.Hour)
+	tokens, err = prepareHistoryDB(db)
 	if err != nil {
-		log.Error("L2DB migration failed: " + err.Error())
 		panic(err)
-	} else {
-		log.Debug("L2DB migration succed")
 	}
 	// Run tests
 	result := m.Run()
 	// Close DB
-	if err := l2DB.Close(); err != nil {
+	if err := db.Close(); err != nil {
-		fmt.Println("Error closing the history DB:", err)
+		log.Error("Error closing the history DB:", err)
 	}
 	os.Exit(result)
 }
 
-func TestAddTx(t *testing.T) {
+func prepareHistoryDB(db *sqlx.DB) ([]common.Token, error) {
+	historyDB := historydb.NewHistoryDB(db)
+	const fromBlock int64 = 1
+	const toBlock int64 = 5
+	// Clean historyDB
+	if err := historyDB.Reorg(-1); err != nil {
+		panic(err)
+	}
+	// Store blocks to historyDB
+	blocks := test.GenBlocks(fromBlock, toBlock)
+	if err := historyDB.AddBlocks(blocks); err != nil {
+		panic(err)
+	}
+	// Store tokens to historyDB
+	const nTokens = 5
+	tokens := test.GenTokens(nTokens, blocks)
+	return tokens, historyDB.AddTokens(tokens)
+}
+
+func TestAddTxTest(t *testing.T) {
+	// Gen poolTxs
 	const nInserts = 20
 	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(nInserts)
+	txs := test.GenPoolTxs(nInserts, tokens)
 	for _, tx := range txs {
-		err := l2DB.AddTx(tx)
+		err := l2DB.AddTxTest(tx)
 		assert.NoError(t, err)
 		fetchedTx, err := l2DB.GetTx(tx.TxID)
 		assert.NoError(t, err)
-		assert.Equal(t, tx.Timestamp.Unix(), fetchedTx.Timestamp.Unix())
+		assertTx(t, tx, fetchedTx)
-		tx.Timestamp = fetchedTx.Timestamp
-		assert.Equal(t, tx.AbsoluteFeeUpdate.Unix(), fetchedTx.AbsoluteFeeUpdate.Unix())
-		tx.Timestamp = fetchedTx.Timestamp
-		tx.AbsoluteFeeUpdate = fetchedTx.AbsoluteFeeUpdate
-		assert.Equal(t, tx, fetchedTx)
 	}
 }
 
-func BenchmarkAddTx(b *testing.B) {
+func assertTx(t *testing.T, expected, actual *common.PoolL2Tx) {
+	assert.Equal(t, expected.Timestamp.Unix(), actual.Timestamp.Unix())
+	expected.Timestamp = actual.Timestamp
+	if expected.AbsoluteFeeUpdate != nil {
+		assert.Equal(t, expected.AbsoluteFeeUpdate.Unix(), actual.AbsoluteFeeUpdate.Unix())
+		expected.AbsoluteFeeUpdate = actual.AbsoluteFeeUpdate
+	} else {
+		assert.Equal(t, expected.AbsoluteFeeUpdate, actual.AbsoluteFeeUpdate)
+	}
+	test.AssertUSD(t, expected.AbsoluteFee, actual.AbsoluteFee)
+	assert.Equal(t, expected, actual)
+}
+
+func BenchmarkAddTxTest(b *testing.B) {
 	const nInserts = 20
 	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(nInserts)
+	txs := test.GenPoolTxs(nInserts, tokens)
 	now := time.Now()
 	for _, tx := range txs {
-		_ = l2DB.AddTx(tx)
+		_ = l2DB.AddTxTest(tx)
 	}
 	elapsedTime := time.Since(now)
-	fmt.Println("Time to insert 2048 txs:", elapsedTime)
+	log.Info("Time to insert 2048 txs:", elapsedTime)
 }
 
 func TestGetPending(t *testing.T) {
 	const nInserts = 20
 	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(nInserts)
+	txs := test.GenPoolTxs(nInserts, tokens)
 	var pendingTxs []*common.PoolL2Tx
 	for _, tx := range txs {
-		err := l2DB.AddTx(tx)
+		err := l2DB.AddTxTest(tx)
 		assert.NoError(t, err)
-		if tx.State == common.PoolL2TxStatePending {
+		if tx.State == common.PoolL2TxStatePending && tx.AbsoluteFee != nil {
 			pendingTxs = append(pendingTxs, tx)
 		}
 	}
@@ -81,11 +112,7 @@ func TestGetPending(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, len(pendingTxs), len(fetchedTxs))
 	for i, fetchedTx := range fetchedTxs {
-		assert.Equal(t, pendingTxs[i].Timestamp.Unix(), fetchedTx.Timestamp.Unix())
+		assertTx(t, pendingTxs[i], fetchedTx)
-		pendingTxs[i].Timestamp = fetchedTx.Timestamp
-		assert.Equal(t, pendingTxs[i].AbsoluteFeeUpdate.Unix(), fetchedTx.AbsoluteFeeUpdate.Unix())
-		pendingTxs[i].AbsoluteFeeUpdate = fetchedTx.AbsoluteFeeUpdate
-		assert.Equal(t, pendingTxs[i], fetchedTx)
 	}
 }
 
@@ -94,12 +121,12 @@ func TestStartForging(t *testing.T) {
 	const nInserts = 60
 	const fakeBatchNum common.BatchNum = 33
 	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(nInserts)
+	txs := test.GenPoolTxs(nInserts, tokens)
 	var startForgingTxIDs []common.TxID
 	randomizer := 0
 	// Add txs to DB
 	for _, tx := range txs {
-		err := l2DB.AddTx(tx)
+		err := l2DB.AddTxTest(tx)
 		assert.NoError(t, err)
 		if tx.State == common.PoolL2TxStatePending && randomizer%2 == 0 {
 			randomizer++
@@ -123,12 +150,12 @@ func TestDoneForging(t *testing.T) {
 	const nInserts = 60
 	const fakeBatchNum common.BatchNum = 33
 	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(nInserts)
+	txs := test.GenPoolTxs(nInserts, tokens)
 	var doneForgingTxIDs []common.TxID
 	randomizer := 0
 	// Add txs to DB
 	for _, tx := range txs {
-		err := l2DB.AddTx(tx)
+		err := l2DB.AddTxTest(tx)
 		assert.NoError(t, err)
 		if tx.State == common.PoolL2TxStateForging && randomizer%2 == 0 {
 			randomizer++
@@ -152,12 +179,12 @@ func TestInvalidate(t *testing.T) {
 	const nInserts = 60
 	const fakeBatchNum common.BatchNum = 33
 	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(nInserts)
+	txs := test.GenPoolTxs(nInserts, tokens)
 	var invalidTxIDs []common.TxID
 	randomizer := 0
 	// Add txs to DB
 	for _, tx := range txs {
-		err := l2DB.AddTx(tx)
+		err := l2DB.AddTxTest(tx)
 		assert.NoError(t, err)
 		if tx.State != common.PoolL2TxStateInvalid && randomizer%2 == 0 {
 			randomizer++
@@ -181,7 +208,7 @@ func TestCheckNonces(t *testing.T) {
 	const nInserts = 60
 	const fakeBatchNum common.BatchNum = 33
 	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(nInserts)
+	txs := test.GenPoolTxs(nInserts, tokens)
 	var invalidTxIDs []common.TxID
 	// Generate accounts
 	const nAccoutns = 2
@@ -204,7 +231,7 @@ func TestCheckNonces(t *testing.T) {
 				txs[i].Nonce = currentNonce + 1
 			}
 		}
-		err := l2DB.AddTx(txs[i])
+		err := l2DB.AddTxTest(txs[i])
 		assert.NoError(t, err)
 	}
 	// Start forging txs
@@ -219,69 +246,13 @@ func TestCheckNonces(t *testing.T) {
 	}
 }
 
-func TestUpdateTxValue(t *testing.T) {
-	// Generate txs
-	const nInserts = 255 // Force all possible fee selector values
-	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(nInserts)
-	// Generate tokens
-	const nTokens = 2
-	tokens := []common.Token{}
-	for i := 0; i < nTokens; i++ {
-		tokens = append(tokens, common.Token{
-			TokenID: common.TokenID(i),
-			USD:     float64(i) * 1.3,
-		})
-	}
-	// Add txs to DB
-	for i := 0; i < len(txs); i++ {
-		// Set Token
-		token := tokens[i%len(tokens)]
-		txs[i].TokenID = token.TokenID
-		// Insert to DB
-		err := l2DB.AddTx(txs[i])
-		assert.NoError(t, err)
-		// Set USD values (for comparing results when fetching from DB)
-		txs[i].USD = txs[i].AmountFloat * token.USD
-		if txs[i].Fee == 0 {
-			txs[i].AbsoluteFee = 0
-		} else if txs[i].Fee <= 32 {
-			txs[i].AbsoluteFee = txs[i].USD * math.Pow(10, -24+(float64(txs[i].Fee)/2))
-		} else if txs[i].Fee <= 223 {
-			txs[i].AbsoluteFee = txs[i].USD * math.Pow(10, -8+(0.041666666666667*(float64(txs[i].Fee)-32)))
-		} else {
-			txs[i].AbsoluteFee = txs[i].USD * math.Pow(10, float64(txs[i].Fee)-224)
-		}
-	}
-	// Update token value
-	err := l2DB.UpdateTxValue(tokens)
-	assert.NoError(t, err)
-	// Fetch txs and check that they've been updated correctly
-	for _, tx := range txs {
-		fetchedTx, err := l2DB.GetTx(tx.TxID)
-		assert.NoError(t, err)
-		if fetchedTx.USD > tx.USD {
-			assert.Less(t, 0.999, tx.USD/fetchedTx.USD)
-		} else if fetchedTx.USD < tx.USD {
-			assert.Less(t, 0.999, fetchedTx.USD/tx.USD)
-		}
-		if fetchedTx.AbsoluteFee > tx.AbsoluteFee {
-			assert.Less(t, 0.999, tx.AbsoluteFee/fetchedTx.AbsoluteFee)
-		} else if fetchedTx.AbsoluteFee < tx.AbsoluteFee {
-			assert.Less(t, 0.999, fetchedTx.AbsoluteFee/tx.AbsoluteFee)
-		}
-		// Time is set in the DB, so it cannot be compared exactly
-		assert.Greater(t, float64(15*time.Second), time.Since(fetchedTx.AbsoluteFeeUpdate).Seconds())
-	}
-}
-
 func TestReorg(t *testing.T) {
 	// Generate txs
 	const nInserts = 20
 	const lastValidBatch common.BatchNum = 20
 	const reorgBatch common.BatchNum = lastValidBatch + 1
 	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(nInserts)
+	txs := test.GenPoolTxs(nInserts, tokens)
 	// Add txs to the DB
 	reorgedTxIDs := []common.TxID{}
 	nonReorgedTxIDs := []common.TxID{}
@@ -293,7 +264,7 @@ func TestReorg(t *testing.T) {
 			txs[i].BatchNum = lastValidBatch
 			nonReorgedTxIDs = append(nonReorgedTxIDs, txs[i].TxID)
 		}
-		err := l2DB.AddTx(txs[i])
+		err := l2DB.AddTxTest(txs[i])
 		assert.NoError(t, err)
 	}
 	err := l2DB.Reorg(lastValidBatch)
@@ -316,7 +287,7 @@ func TestPurge(t *testing.T) {
 	// Generate txs
 	nInserts := l2DB.maxTxs + 20
 	test.CleanL2DB(l2DB.DB())
-	txs := test.GenPoolTxs(int(nInserts))
+	txs := test.GenPoolTxs(int(nInserts), tokens)
 	deletedIDs := []common.TxID{}
 	keepedIDs := []common.TxID{}
 	const toDeleteBatchNum common.BatchNum = 30
@@ -335,14 +306,14 @@ func TestPurge(t *testing.T) {
 			}
 			deletedIDs = append(deletedIDs, txs[i].TxID)
 		}
-		err := l2DB.AddTx(txs[i])
+		err := l2DB.AddTxTest(txs[i])
 		assert.NoError(t, err)
 	}
 	for i := int(l2DB.maxTxs); i < len(txs); i++ {
 		// Delete after TTL
 		txs[i].Timestamp = time.Unix(time.Now().UTC().Unix()-int64(l2DB.ttl.Seconds()+float64(4*time.Second)), 0)
 		deletedIDs = append(deletedIDs, txs[i].TxID)
-		err := l2DB.AddTx(txs[i])
+		err := l2DB.AddTxTest(txs[i])
 		assert.NoError(t, err)
 	}
 	// Purge txs

db/l2db/migrations/001_init.sql

@@ -1,40 +0,0 @@
--- +migrate Up
-CREATE TABLE tx_pool (
-    tx_id BYTEA PRIMARY KEY,
-    from_idx BIGINT NOT NULL,
-    to_idx BIGINT NOT NULL,
-    to_eth_addr BYTEA NOT NULL,
-    to_bjj BYTEA NOT NULL,
-    token_id INT NOT NULL,
-    amount BYTEA NOT NULL,
-    amount_f NUMERIC NOT NULL,
-    value_usd NUMERIC,
-    fee SMALLINT NOT NULL,
-    nonce BIGINT NOT NULL,
-    state CHAR(4) NOT NULL,
-    signature BYTEA NOT NULL,
-    timestamp TIMESTAMP WITHOUT TIME ZONE NOT NULL,
-    batch_num BIGINT,
-    rq_from_idx BIGINT,
-    rq_to_idx BIGINT,
-    rq_to_eth_addr BYTEA,
-    rq_to_bjj BYTEA,
-    rq_token_id INT,
-    rq_amount BYTEA,
-    rq_fee SMALLINT,
-    rq_nonce BIGINT,
-    fee_usd NUMERIC,
-    usd_update TIMESTAMP WITHOUT TIME ZONE,
-    tx_type VARCHAR(40) NOT NULL
-);
-
-CREATE TABLE account_creation_auth (
-    eth_addr BYTEA PRIMARY KEY,
-    bjj BYTEA NOT NULL,
-    signature BYTEA NOT NULL,
-    timestamp TIMESTAMP WITHOUT TIME ZONE NOT NULL
-);
-
--- +migrate Down
-DROP TABLE account_creation_auth;
-DROP TABLE tx_pool;

db/migrations/0001.sql

@@ -0,0 +1,515 @@
+-- +migrate Up
+
+-- History
+CREATE TABLE block (
+    eth_block_num BIGINT PRIMARY KEY,
+    timestamp TIMESTAMP WITHOUT TIME ZONE NOT NULL,
+    hash BYTEA NOT NULL
+);
+
+CREATE TABLE coordinator (
+    forger_addr BYTEA NOT NULL,
+    eth_block_num BIGINT NOT NULL REFERENCES block (eth_block_num) ON DELETE CASCADE,
+    withdraw_addr BYTEA NOT NULL,
+    url VARCHAR(200) NOT NULL,
+    PRIMARY KEY (forger_addr, eth_block_num)
+);
+
+CREATE TABLE batch (
+    batch_num BIGINT PRIMARY KEY,
+    eth_block_num BIGINT REFERENCES block (eth_block_num) ON DELETE CASCADE,
+    forger_addr BYTEA NOT NULL, -- fake foreign key for coordinator
+    fees_collected BYTEA NOT NULL,
+    state_root BYTEA NOT NULL,
+    num_accounts BIGINT NOT NULL,
+    exit_root BYTEA NOT NULL,
+    forge_l1_txs_num BIGINT,
+    slot_num BIGINT NOT NULL
+);
+
+CREATE TABLE exit_tree (
+    batch_num BIGINT REFERENCES batch (batch_num) ON DELETE CASCADE,
+    account_idx BIGINT,
+    merkle_proof BYTEA NOT NULL,
+    balance BYTEA NOT NULL,
+    instant_withdrawn BIGINT REFERENCES batch (batch_num) ON DELETE SET NULL,
+    delayed_withdraw_request BIGINT REFERENCES batch (batch_num) ON DELETE SET NULL,
+    delayed_withdrawn BIGINT REFERENCES batch (batch_num) ON DELETE SET NULL,
+    PRIMARY KEY (batch_num, account_idx)
+);
+
+CREATE TABLE bid (
+    slot_num BIGINT NOT NULL,
+    bid_value BYTEA NOT NULL,
+    eth_block_num BIGINT NOT NULL REFERENCES block (eth_block_num) ON DELETE CASCADE,
+    forger_addr BYTEA NOT NULL, -- fake foreign key for coordinator
+    PRIMARY KEY (slot_num, bid_value)
+);
+
+CREATE TABLE token (
+    token_id INT PRIMARY KEY,
+    eth_block_num BIGINT NOT NULL REFERENCES block (eth_block_num) ON DELETE CASCADE,
+    eth_addr BYTEA UNIQUE NOT NULL,
+    name VARCHAR(20) NOT NULL,
+    symbol VARCHAR(10) NOT NULL,
+    decimals INT NOT NULL,
+    usd NUMERIC,
+    usd_update TIMESTAMP
+);
+
+-- +migrate StatementBegin
+CREATE FUNCTION set_token_usd_update() 
+    RETURNS TRIGGER 
+AS 
+$BODY$
+BEGIN
+    IF NEW."usd" IS NOT NULL AND NEW."usd_update" IS NULL THEN
+        NEW."usd_update" = timezone('utc', now());
+    END IF;
+    RETURN NEW;
+END;
+$BODY$
+LANGUAGE plpgsql;
+-- +migrate StatementEnd
+CREATE TRIGGER trigger_token_usd_update BEFORE UPDATE OR INSERT ON token
+FOR EACH ROW EXECUTE PROCEDURE set_token_usd_update();
+
+CREATE TABLE tx (
+    -- Generic TX
+    is_l1 BOOLEAN NOT NULL,
+    id BYTEA PRIMARY KEY,
+    type VARCHAR(40) NOT NULL,
+    position INT NOT NULL,
+    from_idx BIGINT NOT NULL,
+    to_idx BIGINT NOT NULL,
+    amount BYTEA NOT NULL,
+    amount_f NUMERIC NOT NULL,
+    token_id INT NOT NULL REFERENCES token (token_id),
+    amount_usd NUMERIC, -- Value of the amount in USD at the moment the tx was inserted in the DB
+    batch_num BIGINT REFERENCES batch (batch_num) ON DELETE SET NULL, -- Can be NULL in the case of L1 txs that are on the queue but not forged yet.
+    eth_block_num BIGINT NOT NULL REFERENCES block (eth_block_num) ON DELETE CASCADE,
+    -- L1
+    to_forge_l1_txs_num BIGINT,
+    user_origin BOOLEAN,
+    from_eth_addr BYTEA,
+    from_bjj BYTEA,
+    load_amount BYTEA,
+    load_amount_f NUMERIC,
+    load_amount_usd NUMERIC,
+    -- L2
+    fee INT,
+    fee_usd NUMERIC,
+    nonce BIGINT
+);
+
+CREATE INDEX tx_order ON tx (batch_num, position);
+
+-- +migrate StatementBegin
+CREATE FUNCTION fee_percentage(NUMERIC)
+    RETURNS NUMERIC 
+AS 
+$BODY$
+DECLARE perc NUMERIC;
+BEGIN
+    SELECT CASE 
+        WHEN $1 = 0 THEN 0
+        WHEN $1 = 1 THEN 3.162278e-24
+        WHEN $1 = 2 THEN 1.000000e-23
+        WHEN $1 = 3 THEN 3.162278e-23
+        WHEN $1 = 4 THEN 1.000000e-22
+        WHEN $1 = 5 THEN 3.162278e-22
+        WHEN $1 = 6 THEN 1.000000e-21
+        WHEN $1 = 7 THEN 3.162278e-21
+        WHEN $1 = 8 THEN 1.000000e-20
+        WHEN $1 = 9 THEN 3.162278e-20
+        WHEN $1 = 10 THEN 1.000000e-19
+        WHEN $1 = 11 THEN 3.162278e-19
+        WHEN $1 = 12 THEN 1.000000e-18
+        WHEN $1 = 13 THEN 3.162278e-18
+        WHEN $1 = 14 THEN 1.000000e-17
+        WHEN $1 = 15 THEN 3.162278e-17
+        WHEN $1 = 16 THEN 1.000000e-16
+        WHEN $1 = 17 THEN 3.162278e-16
+        WHEN $1 = 18 THEN 1.000000e-15
+        WHEN $1 = 19 THEN 3.162278e-15
+        WHEN $1 = 20 THEN 1.000000e-14
+        WHEN $1 = 21 THEN 3.162278e-14
+        WHEN $1 = 22 THEN 1.000000e-13
+        WHEN $1 = 23 THEN 3.162278e-13
+        WHEN $1 = 24 THEN 1.000000e-12
+        WHEN $1 = 25 THEN 3.162278e-12
+        WHEN $1 = 26 THEN 1.000000e-11
+        WHEN $1 = 27 THEN 3.162278e-11
+        WHEN $1 = 28 THEN 1.000000e-10
+        WHEN $1 = 29 THEN 3.162278e-10
+        WHEN $1 = 30 THEN 1.000000e-09
+        WHEN $1 = 31 THEN 3.162278e-09
+        WHEN $1 = 32 THEN 1.000000e-08
+        WHEN $1 = 33 THEN 1.100694e-08
+        WHEN $1 = 34 THEN 1.211528e-08
+        WHEN $1 = 35 THEN 1.333521e-08
+        WHEN $1 = 36 THEN 1.467799e-08
+        WHEN $1 = 37 THEN 1.615598e-08
+        WHEN $1 = 38 THEN 1.778279e-08
+        WHEN $1 = 39 THEN 1.957342e-08
+        WHEN $1 = 40 THEN 2.154435e-08
+        WHEN $1 = 41 THEN 2.371374e-08
+        WHEN $1 = 42 THEN 2.610157e-08
+        WHEN $1 = 43 THEN 2.872985e-08
+        WHEN $1 = 44 THEN 3.162278e-08
+        WHEN $1 = 45 THEN 3.480701e-08
+        WHEN $1 = 46 THEN 3.831187e-08
+        WHEN $1 = 47 THEN 4.216965e-08
+        WHEN $1 = 48 THEN 4.641589e-08
+        WHEN $1 = 49 THEN 5.108970e-08
+        WHEN $1 = 50 THEN 5.623413e-08
+        WHEN $1 = 51 THEN 6.189658e-08
+        WHEN $1 = 52 THEN 6.812921e-08
+        WHEN $1 = 53 THEN 7.498942e-08
+        WHEN $1 = 54 THEN 8.254042e-08
+        WHEN $1 = 55 THEN 9.085176e-08
+        WHEN $1 = 56 THEN 1.000000e-07
+        WHEN $1 = 57 THEN 1.100694e-07
+        WHEN $1 = 58 THEN 1.211528e-07
+        WHEN $1 = 59 THEN 1.333521e-07
+        WHEN $1 = 60 THEN 1.467799e-07
+        WHEN $1 = 61 THEN 1.615598e-07
+        WHEN $1 = 62 THEN 1.778279e-07
+        WHEN $1 = 63 THEN 1.957342e-07
+        WHEN $1 = 64 THEN 2.154435e-07
+        WHEN $1 = 65 THEN 2.371374e-07
+        WHEN $1 = 66 THEN 2.610157e-07
+        WHEN $1 = 67 THEN 2.872985e-07
+        WHEN $1 = 68 THEN 3.162278e-07
+        WHEN $1 = 69 THEN 3.480701e-07
+        WHEN $1 = 70 THEN 3.831187e-07
+        WHEN $1 = 71 THEN 4.216965e-07
+        WHEN $1 = 72 THEN 4.641589e-07
+        WHEN $1 = 73 THEN 5.108970e-07
+        WHEN $1 = 74 THEN 5.623413e-07
+        WHEN $1 = 75 THEN 6.189658e-07
+        WHEN $1 = 76 THEN 6.812921e-07
+        WHEN $1 = 77 THEN 7.498942e-07
+        WHEN $1 = 78 THEN 8.254042e-07
+        WHEN $1 = 79 THEN 9.085176e-07
+        WHEN $1 = 80 THEN 1.000000e-06
+        WHEN $1 = 81 THEN 1.100694e-06
+        WHEN $1 = 82 THEN 1.211528e-06
+        WHEN $1 = 83 THEN 1.333521e-06
+        WHEN $1 = 84 THEN 1.467799e-06
+        WHEN $1 = 85 THEN 1.615598e-06
+        WHEN $1 = 86 THEN 1.778279e-06
+        WHEN $1 = 87 THEN 1.957342e-06
+        WHEN $1 = 88 THEN 2.154435e-06
+        WHEN $1 = 89 THEN 2.371374e-06
+        WHEN $1 = 90 THEN 2.610157e-06
+        WHEN $1 = 91 THEN 2.872985e-06
+        WHEN $1 = 92 THEN 3.162278e-06
+        WHEN $1 = 93 THEN 3.480701e-06
+        WHEN $1 = 94 THEN 3.831187e-06
+        WHEN $1 = 95 THEN 4.216965e-06
+        WHEN $1 = 96 THEN 4.641589e-06
+        WHEN $1 = 97 THEN 5.108970e-06
+        WHEN $1 = 98 THEN 5.623413e-06
+        WHEN $1 = 99 THEN 6.189658e-06
+        WHEN $1 = 100 THEN 6.812921e-06
+        WHEN $1 = 101 THEN 7.498942e-06
+        WHEN $1 = 102 THEN 8.254042e-06
+        WHEN $1 = 103 THEN 9.085176e-06
+        WHEN $1 = 104 THEN 1.000000e-05
+        WHEN $1 = 105 THEN 1.100694e-05
+        WHEN $1 = 106 THEN 1.211528e-05
+        WHEN $1 = 107 THEN 1.333521e-05
+        WHEN $1 = 108 THEN 1.467799e-05
+        WHEN $1 = 109 THEN 1.615598e-05
+        WHEN $1 = 110 THEN 1.778279e-05
+        WHEN $1 = 111 THEN 1.957342e-05
+        WHEN $1 = 112 THEN 2.154435e-05
+        WHEN $1 = 113 THEN 2.371374e-05
+        WHEN $1 = 114 THEN 2.610157e-05
+        WHEN $1 = 115 THEN 2.872985e-05
+        WHEN $1 = 116 THEN 3.162278e-05
+        WHEN $1 = 117 THEN 3.480701e-05
+        WHEN $1 = 118 THEN 3.831187e-05
+        WHEN $1 = 119 THEN 4.216965e-05
+        WHEN $1 = 120 THEN 4.641589e-05
+        WHEN $1 = 121 THEN 5.108970e-05
+        WHEN $1 = 122 THEN 5.623413e-05
+        WHEN $1 = 123 THEN 6.189658e-05
+        WHEN $1 = 124 THEN 6.812921e-05
+        WHEN $1 = 125 THEN 7.498942e-05
+        WHEN $1 = 126 THEN 8.254042e-05
+        WHEN $1 = 127 THEN 9.085176e-05
+        WHEN $1 = 128 THEN 1.000000e-04
+        WHEN $1 = 129 THEN 1.100694e-04
+        WHEN $1 = 130 THEN 1.211528e-04
+        WHEN $1 = 131 THEN 1.333521e-04
+        WHEN $1 = 132 THEN 1.467799e-04
+        WHEN $1 = 133 THEN 1.615598e-04
+        WHEN $1 = 134 THEN 1.778279e-04
+        WHEN $1 = 135 THEN 1.957342e-04
+        WHEN $1 = 136 THEN 2.154435e-04
+        WHEN $1 = 137 THEN 2.371374e-04
+        WHEN $1 = 138 THEN 2.610157e-04
+        WHEN $1 = 139 THEN 2.872985e-04
+        WHEN $1 = 140 THEN 3.162278e-04
+        WHEN $1 = 141 THEN 3.480701e-04
+        WHEN $1 = 142 THEN 3.831187e-04
+        WHEN $1 = 143 THEN 4.216965e-04
+        WHEN $1 = 144 THEN 4.641589e-04
+        WHEN $1 = 145 THEN 5.108970e-04
+        WHEN $1 = 146 THEN 5.623413e-04
+        WHEN $1 = 147 THEN 6.189658e-04
+        WHEN $1 = 148 THEN 6.812921e-04
+        WHEN $1 = 149 THEN 7.498942e-04
+        WHEN $1 = 150 THEN 8.254042e-04
+        WHEN $1 = 151 THEN 9.085176e-04
+        WHEN $1 = 152 THEN 1.000000e-03
+        WHEN $1 = 153 THEN 1.100694e-03
+        WHEN $1 = 154 THEN 1.211528e-03
+        WHEN $1 = 155 THEN 1.333521e-03
+        WHEN $1 = 156 THEN 1.467799e-03
+        WHEN $1 = 157 THEN 1.615598e-03
+        WHEN $1 = 158 THEN 1.778279e-03
+        WHEN $1 = 159 THEN 1.957342e-03
+        WHEN $1 = 160 THEN 2.154435e-03
+        WHEN $1 = 161 THEN 2.371374e-03
+        WHEN $1 = 162 THEN 2.610157e-03
+        WHEN $1 = 163 THEN 2.872985e-03
+        WHEN $1 = 164 THEN 3.162278e-03
+        WHEN $1 = 165 THEN 3.480701e-03
+        WHEN $1 = 166 THEN 3.831187e-03
+        WHEN $1 = 167 THEN 4.216965e-03
+        WHEN $1 = 168 THEN 4.641589e-03
+        WHEN $1 = 169 THEN 5.108970e-03
+        WHEN $1 = 170 THEN 5.623413e-03
+        WHEN $1 = 171 THEN 6.189658e-03
+        WHEN $1 = 172 THEN 6.812921e-03
+        WHEN $1 = 173 THEN 7.498942e-03
+        WHEN $1 = 174 THEN 8.254042e-03
+        WHEN $1 = 175 THEN 9.085176e-03
+        WHEN $1 = 176 THEN 1.000000e-02
+        WHEN $1 = 177 THEN 1.100694e-02
+        WHEN $1 = 178 THEN 1.211528e-02
+        WHEN $1 = 179 THEN 1.333521e-02
+        WHEN $1 = 180 THEN 1.467799e-02
+        WHEN $1 = 181 THEN 1.615598e-02
+        WHEN $1 = 182 THEN 1.778279e-02
+        WHEN $1 = 183 THEN 1.957342e-02
+        WHEN $1 = 184 THEN 2.154435e-02
+        WHEN $1 = 185 THEN 2.371374e-02
+        WHEN $1 = 186 THEN 2.610157e-02
+        WHEN $1 = 187 THEN 2.872985e-02
+        WHEN $1 = 188 THEN 3.162278e-02
+        WHEN $1 = 189 THEN 3.480701e-02
+        WHEN $1 = 190 THEN 3.831187e-02
+        WHEN $1 = 191 THEN 4.216965e-02
+        WHEN $1 = 192 THEN 4.641589e-02
+        WHEN $1 = 193 THEN 5.108970e-02
+        WHEN $1 = 194 THEN 5.623413e-02
+        WHEN $1 = 195 THEN 6.189658e-02
+        WHEN $1 = 196 THEN 6.812921e-02
+        WHEN $1 = 197 THEN 7.498942e-02
+        WHEN $1 = 198 THEN 8.254042e-02
+        WHEN $1 = 199 THEN 9.085176e-02
+        WHEN $1 = 200 THEN 1.000000e-01
+        WHEN $1 = 201 THEN 1.100694e-01
+        WHEN $1 = 202 THEN 1.211528e-01
+        WHEN $1 = 203 THEN 1.333521e-01
+        WHEN $1 = 204 THEN 1.467799e-01
+        WHEN $1 = 205 THEN 1.615598e-01
+        WHEN $1 = 206 THEN 1.778279e-01
+        WHEN $1 = 207 THEN 1.957342e-01
+        WHEN $1 = 208 THEN 2.154435e-01
+        WHEN $1 = 209 THEN 2.371374e-01
+        WHEN $1 = 210 THEN 2.610157e-01
+        WHEN $1 = 211 THEN 2.872985e-01
+        WHEN $1 = 212 THEN 3.162278e-01
+        WHEN $1 = 213 THEN 3.480701e-01
+        WHEN $1 = 214 THEN 3.831187e-01
+        WHEN $1 = 215 THEN 4.216965e-01
+        WHEN $1 = 216 THEN 4.641589e-01
+        WHEN $1 = 217 THEN 5.108970e-01
+        WHEN $1 = 218 THEN 5.623413e-01
+        WHEN $1 = 219 THEN 6.189658e-01
+        WHEN $1 = 220 THEN 6.812921e-01
+        WHEN $1 = 221 THEN 7.498942e-01
+        WHEN $1 = 222 THEN 8.254042e-01
+        WHEN $1 = 223 THEN 9.085176e-01
+        WHEN $1 = 224 THEN 1.000000e+00
+        WHEN $1 = 225 THEN 1.000000e+01
+        WHEN $1 = 226 THEN 1.000000e+02
+        WHEN $1 = 227 THEN 1.000000e+03
+        WHEN $1 = 228 THEN 1.000000e+04
+        WHEN $1 = 229 THEN 1.000000e+05
+        WHEN $1 = 230 THEN 1.000000e+06
+        WHEN $1 = 231 THEN 1.000000e+07
+        WHEN $1 = 232 THEN 1.000000e+08
+        WHEN $1 = 233 THEN 1.000000e+09
+        WHEN $1 = 234 THEN 1.000000e+10
+        WHEN $1 = 235 THEN 1.000000e+11
+        WHEN $1 = 236 THEN 1.000000e+12
+        WHEN $1 = 237 THEN 1.000000e+13
+        WHEN $1 = 238 THEN 1.000000e+14
+        WHEN $1 = 239 THEN 1.000000e+15
+        WHEN $1 = 240 THEN 1.000000e+16
+        WHEN $1 = 241 THEN 1.000000e+17
+        WHEN $1 = 242 THEN 1.000000e+18
+        WHEN $1 = 243 THEN 1.000000e+19
+        WHEN $1 = 244 THEN 1.000000e+20
+        WHEN $1 = 245 THEN 1.000000e+21
+        WHEN $1 = 246 THEN 1.000000e+22
+        WHEN $1 = 247 THEN 1.000000e+23
+        WHEN $1 = 248 THEN 1.000000e+24
+        WHEN $1 = 249 THEN 1.000000e+25
+        WHEN $1 = 250 THEN 1.000000e+26
+        WHEN $1 = 251 THEN 1.000000e+27
+        WHEN $1 = 252 THEN 1.000000e+28
+        WHEN $1 = 253 THEN 1.000000e+29
+        WHEN $1 = 254 THEN 1.000000e+30
+        WHEN $1 = 255 THEN 1.000000e+31
+    END INTO perc;
+    RETURN perc;
+END;
+$BODY$
+LANGUAGE plpgsql;
+-- +migrate StatementEnd
+
+-- +migrate StatementBegin
+CREATE FUNCTION set_tx()
+    RETURNS TRIGGER 
+AS 
+$BODY$
+DECLARE token_value NUMERIC;
+BEGIN
+    -- Validate L1/L2 constrains
+    IF NEW.is_l1 AND (( -- L1 mandatory fields
+        NEW.user_origin IS NULL OR
+        NEW.from_eth_addr IS NULL OR
+        NEW.from_bjj IS NULL OR
+        NEW.load_amount IS NULL OR
+        NEW.load_amount_f IS NULL
+    ) OR (NOT NEW.user_origin AND NEW.batch_num IS NULL)) THEN -- If is Coordinator L1, must include batch_num
+        RAISE EXCEPTION 'Invalid L1 tx.';
+    ELSIF NOT NEW.is_l1 THEN
+        IF NEW.fee IS NULL THEN
+            NEW.fee = (SELECT 0);
+        END IF;
+        IF NEW.batch_num IS NULL OR NEW.nonce IS NULL THEN
+            RAISE EXCEPTION 'Invalid L2 tx.';
+        END IF;
+    END IF;
+    -- If is L2, add token_id
+    IF NOT NEW.is_l1 THEN
+        NEW."token_id" = (SELECT token_id FROM account WHERE idx = NEW."from_idx");
+    END IF;
+    -- Set value_usd
+    token_value = (SELECT usd / POWER(10, decimals) FROM token WHERE token_id = NEW.token_id);
+    NEW."amount_usd" = (SELECT token_value * NEW.amount_f);
+    NEW."load_amount_usd" = (SELECT token_value * NEW.load_amount_f);
+    IF NOT NEW.is_l1 THEN
+        NEW."fee_usd" = (SELECT NEW."amount_usd" * fee_percentage(NEW.fee::NUMERIC));
+    END IF;
+    RETURN NEW;
+END;
+$BODY$
+LANGUAGE plpgsql;
+-- +migrate StatementEnd
+CREATE TRIGGER trigger_set_tx BEFORE INSERT ON tx
+FOR EACH ROW EXECUTE PROCEDURE set_tx();
+
+-- +migrate StatementBegin
+CREATE FUNCTION forge_l1_user_txs() 
+    RETURNS TRIGGER 
+AS 
+$BODY$
+BEGIN
+    IF NEW.forge_l1_txs_num IS NOT NULL THEN
+        UPDATE tx 
+        SET batch_num = NEW.batch_num
+        WHERE user_origin AND NEW.forge_l1_txs_num = to_forge_l1_txs_num;
+    END IF;
+    RETURN NEW;
+END;
+$BODY$
+LANGUAGE plpgsql;
+-- +migrate StatementEnd
+CREATE TRIGGER trigger_forge_l1_txs AFTER INSERT ON batch
+FOR EACH ROW EXECUTE PROCEDURE forge_l1_user_txs();
+
+CREATE TABLE account (
+    idx BIGINT PRIMARY KEY,
+    token_id INT NOT NULL REFERENCES token (token_id) ON DELETE CASCADE,
+    batch_num BIGINT NOT NULL REFERENCES batch (batch_num) ON DELETE CASCADE,
+    bjj BYTEA NOT NULL,
+    eth_addr BYTEA NOT NULL
+);
+
+CREATE TABLE rollup_vars (
+    eth_block_num BIGINT PRIMARY KEY REFERENCES block (eth_block_num) ON DELETE CASCADE,
+    forge_l1_timeout BYTEA NOT NULL,
+    fee_l1_user_tx BYTEA NOT NULL,
+    fee_add_token BYTEA NOT NULL,
+    tokens_hez BYTEA NOT NULL,
+    governance BYTEA NOT NULL
+);
+
+CREATE TABLE consensus_vars (
+    eth_block_num BIGINT PRIMARY KEY REFERENCES block (eth_block_num) ON DELETE CASCADE,
+    slot_deadline INT NOT NULL,
+    close_auction_slots INT NOT NULL,
+    open_auction_slots INT NOT NULL,
+    min_bid_slots VARCHAR(200) NOT NULL,
+    outbidding INT NOT NULL,
+    donation_address BYTEA NOT NULL,
+    governance_address BYTEA NOT NULL,
+    allocation_ratio VARCHAR(200)
+);
+
+-- L2
+CREATE TABLE tx_pool (
+    tx_id BYTEA PRIMARY KEY,
+    from_idx BIGINT NOT NULL,
+    to_idx BIGINT NOT NULL,
+    to_eth_addr BYTEA NOT NULL,
+    to_bjj BYTEA NOT NULL,
+    token_id INT NOT NULL REFERENCES token (token_id) ON DELETE CASCADE,
+    amount BYTEA NOT NULL,
+    amount_f NUMERIC NOT NULL,
+    fee SMALLINT NOT NULL,
+    nonce BIGINT NOT NULL,
+    state CHAR(4) NOT NULL,
+    signature BYTEA NOT NULL,
+    timestamp TIMESTAMP WITHOUT TIME ZONE NOT NULL,
+    batch_num BIGINT,
+    rq_from_idx BIGINT,
+    rq_to_idx BIGINT,
+    rq_to_eth_addr BYTEA,
+    rq_to_bjj BYTEA,
+    rq_token_id INT,
+    rq_amount BYTEA,
+    rq_fee SMALLINT,
+    rq_nonce BIGINT,
+    tx_type VARCHAR(40) NOT NULL
+);
+
+CREATE TABLE account_creation_auth (
+    eth_addr BYTEA PRIMARY KEY,
+    bjj BYTEA NOT NULL,
+    signature BYTEA NOT NULL,
+    timestamp TIMESTAMP WITHOUT TIME ZONE NOT NULL
+);
+
+-- +migrate Down
+DROP TABLE account_creation_auth;
+DROP TABLE tx_pool;
+DROP TABLE consensus_vars;
+DROP TABLE rollup_vars;
+DROP TABLE account;
+DROP TABLE tx;
+DROP TABLE token;
+DROP TABLE bid;
+DROP TABLE exit_tree;
+DROP TABLE batch;
+DROP TABLE coordinator;
+DROP TABLE block;

db/statedb/txprocessors_test.go

@@ -27,7 +27,7 @@ func TestProcessTxs(t *testing.T) {
 	instructions, err := parser.Parse()
 	assert.Nil(t, err)
 
-	l1Txs, coordinatorL1Txs, poolL2Txs := test.GenerateTestTxs(t, instructions)
+	l1Txs, coordinatorL1Txs, poolL2Txs, _ := test.GenerateTestTxs(t, instructions)
 	assert.Equal(t, 29, len(l1Txs[0]))
 	assert.Equal(t, 0, len(coordinatorL1Txs[0]))
 	assert.Equal(t, 21, len(poolL2Txs[0]))
@@ -57,7 +57,7 @@ func TestProcessTxsBatchByBatch(t *testing.T) {
 	instructions, err := parser.Parse()
 	assert.Nil(t, err)
 
-	l1Txs, coordinatorL1Txs, poolL2Txs := test.GenerateTestTxs(t, instructions)
+	l1Txs, coordinatorL1Txs, poolL2Txs, _ := test.GenerateTestTxs(t, instructions)
 	assert.Equal(t, 29, len(l1Txs[0]))
 	assert.Equal(t, 0, len(coordinatorL1Txs[0]))
 	assert.Equal(t, 21, len(poolL2Txs[0]))
@@ -108,7 +108,7 @@ func TestZKInputsGeneration(t *testing.T) {
 	instructions, err := parser.Parse()
 	assert.Nil(t, err)
 
-	l1Txs, coordinatorL1Txs, poolL2Txs := test.GenerateTestTxs(t, instructions)
+	l1Txs, coordinatorL1Txs, poolL2Txs, _ := test.GenerateTestTxs(t, instructions)
 	assert.Equal(t, 29, len(l1Txs[0]))
 	assert.Equal(t, 0, len(coordinatorL1Txs[0]))
 	assert.Equal(t, 21, len(poolL2Txs[0]))

db/utils.go

@@ -7,11 +7,45 @@ import (
 	"reflect"
 	"strings"
 
+	"github.com/gobuffalo/packr/v2"
+	"github.com/hermeznetwork/hermez-node/log"
+	"github.com/jmoiron/sqlx"
+	migrate "github.com/rubenv/sql-migrate"
 	"github.com/russross/meddler"
 )
 
-// InitMeddler registers tags to be used to read/write from SQL DBs using meddler
+// InitSQLDB runs migrations and registers meddlers
-func InitMeddler() {
+func InitSQLDB(port int, host, user, password, name string) (*sqlx.DB, error) {
+	// Init meddler
+	initMeddler()
+	meddler.Default = meddler.PostgreSQL
+	// Stablish connection
+	psqlconn := fmt.Sprintf(
+		"host=%s port=%d user=%s password=%s dbname=%s sslmode=disable",
+		host,
+		port,
+		user,
+		password,
+		name,
+	)
+	db, err := sqlx.Connect("postgres", psqlconn)
+	if err != nil {
+		return nil, err
+	}
+	// Run DB migrations
+	migrations := &migrate.PackrMigrationSource{
+		Box: packr.New("hermez-db-migrations", "./migrations"),
+	}
+	nMigrations, err := migrate.Exec(db.DB, "postgres", migrations, migrate.Up)
+	if err != nil {
+		return nil, err
+	}
+	log.Info("successfully runt ", nMigrations, " migrations")
+	return db, nil
+}
+
+// initMeddler registers tags to be used to read/write from SQL DBs using meddler
+func initMeddler() {
 	meddler.Register("bigint", BigIntMeddler{})
 	meddler.Register("bigintnull", BigIntNullMeddler{})
 }

node/node.go

@@ -7,6 +7,7 @@ import (
 	"github.com/hermeznetwork/hermez-node/batchbuilder"
 	"github.com/hermeznetwork/hermez-node/config"
 	"github.com/hermeznetwork/hermez-node/coordinator"
+	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"
@@ -14,6 +15,7 @@ import (
 	"github.com/hermeznetwork/hermez-node/log"
 	"github.com/hermeznetwork/hermez-node/synchronizer"
 	"github.com/hermeznetwork/hermez-node/txselector"
+	"github.com/jmoiron/sqlx"
 )
 
 // Mode sets the working mode of the node (synchronizer or coordinator)
@@ -49,23 +51,27 @@ type Node struct {
 	stoppedSync chan bool
 
 	// General
-	cfg  *config.Node
+	cfg     *config.Node
-	mode Mode
+	mode    Mode
+	sqlConn *sqlx.DB
 }
 
 // NewNode creates a Node
 func NewNode(mode Mode, cfg *config.Node, coordCfg *config.Coordinator) (*Node, error) {
-	historyDB, err := historydb.NewHistoryDB(
+	// Stablish DB connection
+	db, err := dbUtils.InitSQLDB(
 		cfg.PostgreSQL.Port,
 		cfg.PostgreSQL.Host,
 		cfg.PostgreSQL.User,
 		cfg.PostgreSQL.Password,
-		cfg.HistoryDB.Name,
+		cfg.PostgreSQL.Name,
 	)
 	if err != nil {
 		return nil, err
 	}
 
+	historyDB := historydb.NewHistoryDB(db)
+
 	stateDB, err := statedb.NewStateDB(cfg.StateDB.Path, true, 32)
 	if err != nil {
 		return nil, err
@@ -81,19 +87,12 @@ func NewNode(mode Mode, cfg *config.Node, coordCfg *config.Coordinator) (*Node,
 
 	var coord *coordinator.Coordinator
 	if mode == ModeCoordinator {
-		l2DB, err := l2db.NewL2DB(
+		l2DB := l2db.NewL2DB(
-			cfg.PostgreSQL.Port,
+			db,
-			cfg.PostgreSQL.Host,
-			cfg.PostgreSQL.User,
-			cfg.PostgreSQL.Password,
-			coordCfg.L2DB.Name,
 			coordCfg.L2DB.SafetyPeriod,
 			coordCfg.L2DB.MaxTxs,
 			coordCfg.L2DB.TTL.Duration,
 		)
-		if err != nil {
-			return nil, err
-		}
 		// TODO: Get (maxL1UserTxs, maxL1OperatorTxs, maxTxs) from the smart contract
 		txSelector, err := txselector.NewTxSelector(coordCfg.TxSelector.Path, stateDB, l2DB, 10, 10, 10)
 		if err != nil {
@@ -129,6 +128,7 @@ func NewNode(mode Mode, cfg *config.Node, coordCfg *config.Coordinator) (*Node,
 		sync:     sync,
 		cfg:      cfg,
 		mode:     mode,
+		sqlConn:  db,
 	}, nil
 }
 

synchronizer/synchronizer.go

@@ -397,7 +397,9 @@ func (s *Synchronizer) rollupSync(blockNum int64) (*rollupData, error) {
 				l1CoordinatorTx.TxID = common.TxID(common.Hash([]byte("0x01" + strconv.FormatInt(int64(nextForgeL1TxsNum), 10) + strconv.FormatInt(int64(l1CoordinatorTx.Position), 10) + "00")))
 				l1CoordinatorTx.UserOrigin = false
 				l1CoordinatorTx.EthBlockNum = blockNum
-				l1CoordinatorTx.BatchNum = common.BatchNum(fbEvent.BatchNum)
+				bn := new(common.BatchNum)
+				*bn = common.BatchNum(fbEvent.BatchNum)
+				l1CoordinatorTx.BatchNum = bn
 
 				batchData.l1CoordinatorTxs = append(batchData.l1CoordinatorTxs, l1CoordinatorTx)
 
@@ -571,7 +573,6 @@ func getL1UserTx(l1UserTxEvents []eth.RollupEventL1UserTx, blockNum int64) []*co
 		eL1UserTx.L1Tx.Position = eL1UserTx.Position
 		eL1UserTx.L1Tx.UserOrigin = true
 		eL1UserTx.L1Tx.EthBlockNum = blockNum
-		eL1UserTx.L1Tx.BatchNum = 0
 
 		l1Txs = append(l1Txs, &eL1UserTx.L1Tx)
 	}

synchronizer/synchronizer_test.go

@@ -1,12 +1,12 @@
 package synchronizer
 
 import (
-	"fmt"
 	"io/ioutil"
 	"os"
 	"testing"
 
 	"github.com/ethereum/go-ethereum/ethclient"
+	dbUtils "github.com/hermeznetwork/hermez-node/db"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
 	"github.com/hermeznetwork/hermez-node/db/statedb"
 	"github.com/hermeznetwork/hermez-node/eth"
@@ -24,8 +24,9 @@ func Test(t *testing.T) {
 
 	// Init History DB
 	pass := os.Getenv("POSTGRES_PASS")
-	historyDB, err := historydb.NewHistoryDB(5432, "localhost", "hermez", pass, "history")
+	db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
 	require.Nil(t, err)
+	historyDB := historydb.NewHistoryDB(db)
 	err = historyDB.Reorg(0)
 	assert.Nil(t, err)
 
@@ -65,9 +66,4 @@ func Test(t *testing.T) {
 		err = s.Sync()
 		require.Nil(t, err)
 	*/
-
-	// Close History DB
-	if err := historyDB.Close(); err != nil {
-		fmt.Println("Error closing the history DB:", err)
-	}
 }

test/dbUtils.go

@@ -0,0 +1,23 @@
+package test
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// AssertUSD asserts pointers to float64, and checks that they are equal
+// with a tolerance of 0.01%. After that, the actual value is setted to the expected value
+// in order to be able to perform further assertions using the standar assert functions.
+func AssertUSD(t *testing.T, expected, actual *float64) {
+	if actual == nil {
+		assert.Equal(t, expected, actual)
+		return
+	}
+	if *expected < *actual {
+		assert.InEpsilon(t, *actual, *expected, 0.0001)
+	} else if *expected > *actual {
+		assert.InEpsilon(t, *expected, *actual, 0.0001)
+	}
+	*expected = *actual
+}

test/historydb.go

@@ -3,6 +3,7 @@ package test
 import (
 	"errors"
 	"fmt"
+	"math"
 	"math/big"
 	"strconv"
 	"time"
@@ -43,8 +44,10 @@ func GenTokens(nTokens int, blocks []common.Block) []common.Token {
 			EthAddr:     ethCommon.BigToAddress(big.NewInt(int64(i))),
 		}
 		if i%2 == 0 {
-			token.USD = 3
+			usd := 3.0
-			token.USDUpdate = time.Now()
+			token.USD = &usd
+			now := time.Now()
+			token.USDUpdate = &now
 		}
 		tokens = append(tokens, token)
 	}
@@ -122,72 +125,118 @@ func GenL1Txs(
 	}
 	userTxs := []common.L1Tx{}
 	othersTxs := []common.L1Tx{}
+	_, nextTxsNum := GetNextToForgeNumAndBatch(batches)
 	for i := 0; i < totalTxs; i++ {
-		var tx common.L1Tx
+		token := tokens[i%len(tokens)]
-		if batches[i%len(batches)].ForgeL1TxsNum != 0 {
+		var usd *float64
-			tx = common.L1Tx{
+		var lUSD *float64
-				TxID:            common.TxID(common.Hash([]byte("L1_" + strconv.Itoa(fromIdx+i)))),
+		amount := big.NewInt(int64(i + 1))
-				ToForgeL1TxsNum: batches[i%len(batches)].ForgeL1TxsNum,
+		if token.USD != nil {
-				Position:        i,
+			//nolint:gomnd
-				UserOrigin:      i%2 == 0,
+			noDecimalsUSD := *token.USD / math.Pow(10, float64(token.Decimals))
-				TokenID:         tokens[i%len(tokens)].TokenID,
+			f := new(big.Float).SetInt(amount)
-				Amount:          big.NewInt(int64(i + 1)),
+			af, _ := f.Float64()
-				LoadAmount:      big.NewInt(int64(i + 1)),
+			usd = new(float64)
-				EthBlockNum:     blocks[i%len(blocks)].EthBlockNum,
+			*usd = noDecimalsUSD * af
-				Type:            randomTxType(i),
+			lUSD = new(float64)
-			}
+			*lUSD = noDecimalsUSD * af
-			if i%4 == 0 {
-				tx.BatchNum = batches[i%len(batches)].BatchNum
-			}
-		} else {
-			continue
 		}
-		if i < nUserTxs {
+		tx := common.L1Tx{
-			var from, to *common.Account
+			TxID:          common.TxID(common.Hash([]byte("L1_" + strconv.Itoa(fromIdx+i)))),
-			var err error
+			Position:      i,
-			if i%2 == 0 {
+			UserOrigin:    i%2 == 0,
-				from, err = randomAccount(i, true, userAddr, accounts)
+			TokenID:       token.TokenID,
-				if err != nil {
+			Amount:        amount,
-					panic(err)
+			USD:           usd,
-				}
+			LoadAmount:    amount,
-				to, err = randomAccount(i, false, userAddr, accounts)
+			LoadAmountUSD: lUSD,
-				if err != nil {
+			EthBlockNum:   blocks[i%len(blocks)].EthBlockNum,
-					panic(err)
+			Type:          randomTxType(i),
-				}
+		}
-			} else {
+		if batches[i%len(batches)].ForgeL1TxsNum != 0 {
-				from, err = randomAccount(i, false, userAddr, accounts)
+			// Add already forged txs
-				if err != nil {
+			tx.BatchNum = &batches[i%len(batches)].BatchNum
-					panic(err)
+			setFromToAndAppend(tx, i, nUserTxs, userAddr, accounts, &userTxs, &othersTxs)
-				}
-				to, err = randomAccount(i, true, userAddr, accounts)
-				if err != nil {
-					panic(err)
-				}
-			}
-			tx.FromIdx = from.Idx
-			tx.FromEthAddr = from.EthAddr
-			tx.FromBJJ = from.PublicKey
-			tx.ToIdx = to.Idx
-			userTxs = append(userTxs, tx)
 		} else {
-			from, err := randomAccount(i, false, userAddr, accounts)
+			// Add unforged txs
-			if err != nil {
+			tx.ToForgeL1TxsNum = nextTxsNum
-				panic(err)
+			tx.UserOrigin = true
-			}
+			setFromToAndAppend(tx, i, nUserTxs, userAddr, accounts, &userTxs, &othersTxs)
-			to, err := randomAccount(i, false, userAddr, accounts)
-			if err != nil {
-				panic(err)
-			}
-			tx.FromIdx = from.Idx
-			tx.FromEthAddr = from.EthAddr
-			tx.FromBJJ = from.PublicKey
-			tx.ToIdx = to.Idx
-			othersTxs = append(othersTxs, tx)
 		}
 	}
 	return userTxs, othersTxs
 }
 
+// GetNextToForgeNumAndBatch returns the next BatchNum and ForgeL1TxsNum to be added
+func GetNextToForgeNumAndBatch(batches []common.Batch) (common.BatchNum, int64) {
+	batchNum := batches[len(batches)-1].BatchNum + 1
+	var toForgeL1TxsNum int64
+	found := false
+	for i := len(batches) - 1; i >= 0; i-- {
+		if batches[i].ForgeL1TxsNum != 0 {
+			toForgeL1TxsNum = batches[i].ForgeL1TxsNum + 1
+			found = true
+			break
+		}
+	}
+	if !found {
+		panic("toForgeL1TxsNum not found")
+	}
+	return batchNum, toForgeL1TxsNum
+}
+
+func setFromToAndAppend(
+	tx common.L1Tx,
+	i, nUserTxs int,
+	userAddr *ethCommon.Address,
+	accounts []common.Account,
+	userTxs *[]common.L1Tx,
+	othersTxs *[]common.L1Tx,
+) {
+	if i < nUserTxs {
+		var from, to *common.Account
+		var err error
+		if i%2 == 0 {
+			from, err = randomAccount(i, true, userAddr, accounts)
+			if err != nil {
+				panic(err)
+			}
+			to, err = randomAccount(i, false, userAddr, accounts)
+			if err != nil {
+				panic(err)
+			}
+		} else {
+			from, err = randomAccount(i, false, userAddr, accounts)
+			if err != nil {
+				panic(err)
+			}
+			to, err = randomAccount(i, true, userAddr, accounts)
+			if err != nil {
+				panic(err)
+			}
+		}
+		tx.FromIdx = from.Idx
+		tx.FromEthAddr = from.EthAddr
+		tx.FromBJJ = from.PublicKey
+		tx.ToIdx = to.Idx
+		*userTxs = append(*userTxs, tx)
+	} else {
+		from, err := randomAccount(i, false, userAddr, accounts)
+		if err != nil {
+			panic(err)
+		}
+		to, err := randomAccount(i, false, userAddr, accounts)
+		if err != nil {
+			panic(err)
+		}
+		tx.FromIdx = from.Idx
+		tx.FromEthAddr = from.EthAddr
+		tx.FromBJJ = from.PublicKey
+		tx.ToIdx = to.Idx
+		*othersTxs = append(*othersTxs, tx)
+	}
+}
+
 // GenL2Txs generates L2 txs. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
 func GenL2Txs(
 	fromIdx int,
@@ -204,14 +253,14 @@ func GenL2Txs(
 	userTxs := []common.L2Tx{}
 	othersTxs := []common.L2Tx{}
 	for i := 0; i < totalTxs; i++ {
+		amount := big.NewInt(int64(i + 1))
+		fee := common.FeeSelector(i % 256) //nolint:gomnd
 		tx := common.L2Tx{
-			TxID:     common.TxID(common.Hash([]byte("L2_" + strconv.Itoa(fromIdx+i)))),
+			TxID:        common.TxID(common.Hash([]byte("L2_" + strconv.Itoa(fromIdx+i)))),
-			BatchNum: batches[i%len(batches)].BatchNum,
+			BatchNum:    batches[i%len(batches)].BatchNum,
-			Position: i,
+			Position:    i,
-			//nolint:gomnd
+			Amount:      amount,
-			Amount: big.NewInt(int64(i + 1)),
+			Fee:         fee,
-			//nolint:gomnd
-			Fee:         common.FeeSelector(i % 256),
 			Nonce:       common.Nonce(i + 1),
 			EthBlockNum: blocks[i%len(blocks)].EthBlockNum,
 			Type:        randomTxType(i),
@@ -240,7 +289,6 @@ func GenL2Txs(
 			}
 			tx.FromIdx = from.Idx
 			tx.ToIdx = to.Idx
-			userTxs = append(userTxs, tx)
 		} else {
 			from, err := randomAccount(i, false, userAddr, accounts)
 			if err != nil {
@@ -252,12 +300,55 @@ func GenL2Txs(
 			}
 			tx.FromIdx = from.Idx
 			tx.ToIdx = to.Idx
+		}
+
+		var usd *float64
+		var fUSD *float64
+		token := GetToken(tx.FromIdx, accounts, tokens)
+		if token.USD != nil {
+			//nolint:gomnd
+			noDecimalsUSD := *token.USD / math.Pow(10, float64(token.Decimals))
+			f := new(big.Float).SetInt(amount)
+			af, _ := f.Float64()
+			usd = new(float64)
+			fUSD = new(float64)
+			*usd = noDecimalsUSD * af
+			*fUSD = *usd * fee.Percentage()
+		}
+		tx.USD = usd
+		tx.FeeUSD = fUSD
+		if i < nUserTxs {
+			userTxs = append(userTxs, tx)
+		} else {
 			othersTxs = append(othersTxs, tx)
 		}
 	}
 	return userTxs, othersTxs
 }
 
+// GetToken returns the Token associated to an Idx given a list of tokens and accounts.
+// It panics when not found, intended for testing only.
+func GetToken(idx common.Idx, accs []common.Account, tokens []common.Token) common.Token {
+	var id common.TokenID
+	found := false
+	for _, acc := range accs {
+		if acc.Idx == idx {
+			found = true
+			id = acc.TokenID
+			break
+		}
+	}
+	if !found {
+		panic("tokenID not found")
+	}
+	for i := 0; i < len(tokens); i++ {
+		if tokens[i].TokenID == id {
+			return tokens[i]
+		}
+	}
+	panic("token not found")
+}
+
 // GenCoordinators generates coordinators. WARNING: This is meant for DB/API testing, and may not be fully consistent with the protocol.
 func GenCoordinators(nCoords int, blocks []common.Block) []common.Coordinator {
 	coords := []common.Coordinator{}

test/l2db.go

@@ -24,7 +24,7 @@ func CleanL2DB(db *sqlx.DB) {
 // GenPoolTxs generates L2 pool txs.
 // WARNING: This tx doesn't follow the protocol (signature, txID, ...)
 // it's just to test getting/setting from/to the DB.
-func GenPoolTxs(n int) []*common.PoolL2Tx {
+func GenPoolTxs(n int, tokens []common.Token) []*common.PoolL2Tx {
 	txs := make([]*common.PoolL2Tx, 0, n)
 	privK := babyjub.NewRandPrivKey()
 	for i := 0; i < n; i++ {
@@ -44,21 +44,33 @@ func GenPoolTxs(n int) []*common.PoolL2Tx {
 		}
 		f := new(big.Float).SetInt(big.NewInt(int64(i)))
 		amountF, _ := f.Float64()
+		var usd, absFee *float64
+		fee := common.FeeSelector(i % 255) //nolint:gomnd
+		token := tokens[i%len(tokens)]
+		if token.USD != nil {
+			usd = new(float64)
+			absFee = new(float64)
+			*usd = *token.USD * amountF
+			*absFee = fee.Percentage() * *usd
+		}
 		tx := &common.PoolL2Tx{
-			TxID:        common.TxID(common.Hash([]byte(strconv.Itoa(i)))),
+			TxID:              common.TxID(common.Hash([]byte(strconv.Itoa(i)))),
-			FromIdx:     common.Idx(i),
+			FromIdx:           common.Idx(i),
-			ToIdx:       common.Idx(i + 1),
+			ToIdx:             common.Idx(i + 1),
-			ToEthAddr:   ethCommon.BigToAddress(big.NewInt(int64(i))),
+			ToEthAddr:         ethCommon.BigToAddress(big.NewInt(int64(i))),
-			ToBJJ:       privK.Public(),
+			ToBJJ:             privK.Public(),
-			TokenID:     common.TokenID(i),
+			TokenID:           token.TokenID,
-			Amount:      big.NewInt(int64(i)),
+			Amount:            big.NewInt(int64(i)),
-			AmountFloat: amountF,
+			AmountFloat:       amountF,
-			//nolint:gomnd
+			USD:               usd,
-			Fee:       common.FeeSelector(i % 255),
+			Fee:               fee,
-			Nonce:     common.Nonce(i),
+			Nonce:             common.Nonce(i),
-			State:     state,
+			State:             state,
-			Signature: privK.SignPoseidon(big.NewInt(int64(i))),
+			Signature:         privK.SignPoseidon(big.NewInt(int64(i))),
-			Timestamp: time.Now().UTC(),
+			Timestamp:         time.Now().UTC(),
+			TokenSymbol:       token.Symbol,
+			AbsoluteFee:       absFee,
+			AbsoluteFeeUpdate: token.USDUpdate,
 		}
 		if i%2 == 0 { // Optional parameters: rq
 			tx.RqFromIdx = common.Idx(i)
@@ -72,8 +84,6 @@ func GenPoolTxs(n int) []*common.PoolL2Tx {
 		}
 		if i%3 == 0 { // Optional parameters: things that get updated "a posteriori"
 			tx.BatchNum = 489
-			tx.AbsoluteFee = 39.12345
-			tx.AbsoluteFeeUpdate = time.Now().UTC()
 		}
 		txs = append(txs, tx)
 	}

test/txs.go

@@ -52,7 +52,7 @@ func GenerateKeys(t *testing.T, accNames []string) map[string]*Account {
 
 // GenerateTestTxs generates L1Tx & PoolL2Tx in a deterministic way for the
 // given Instructions.
-func GenerateTestTxs(t *testing.T, instructions Instructions) ([][]*common.L1Tx, [][]*common.L1Tx, [][]*common.PoolL2Tx) {
+func GenerateTestTxs(t *testing.T, instructions Instructions) ([][]*common.L1Tx, [][]*common.L1Tx, [][]*common.PoolL2Tx, []common.Token) {
 	accounts := GenerateKeys(t, instructions.Accounts)
 	l1CreatedAccounts := make(map[string]*Account)
 
@@ -148,13 +148,32 @@ func GenerateTestTxs(t *testing.T, instructions Instructions) ([][]*common.L1Tx,
 	l1Txs = append(l1Txs, batchL1Txs)
 	coordinatorL1Txs = append(coordinatorL1Txs, batchCoordinatorL1Txs)
 	poolL2Txs = append(poolL2Txs, batchPoolL2Txs)
-
+	tokens := []common.Token{}
-	return l1Txs, coordinatorL1Txs, poolL2Txs
+	for i := 0; i < len(poolL2Txs); i++ {
+		for j := 0; j < len(poolL2Txs[i]); j++ {
+			id := poolL2Txs[i][j].TokenID
+			found := false
+			for k := 0; k < len(tokens); k++ {
+				if tokens[k].TokenID == id {
+					found = true
+					break
+				}
+			}
+			if !found {
+				tokens = append(tokens, common.Token{
+					TokenID:     id,
+					EthBlockNum: 1,
+					EthAddr:     ethCommon.BigToAddress(big.NewInt(int64(i*10000 + j))),
+				})
+			}
+		}
+	}
+	return l1Txs, coordinatorL1Txs, poolL2Txs, tokens
 }
 
 // GenerateTestTxsFromSet reurns the L1 & L2 transactions for a given Set of
 // Instructions code
-func GenerateTestTxsFromSet(t *testing.T, set string) ([][]*common.L1Tx, [][]*common.L1Tx, [][]*common.PoolL2Tx) {
+func GenerateTestTxsFromSet(t *testing.T, set string) ([][]*common.L1Tx, [][]*common.L1Tx, [][]*common.PoolL2Tx, []common.Token) {
 	parser := NewParser(strings.NewReader(set))
 	instructions, err := parser.Parse()
 	require.Nil(t, err)

test/txs_test.go

@@ -29,7 +29,7 @@ func TestGenerateTestL2Txs(t *testing.T) {
 	instructions, err := parser.Parse()
 	assert.Nil(t, err)
 
-	l1txs, coordinatorL1txs, l2txs := GenerateTestTxs(t, instructions)
+	l1txs, coordinatorL1txs, l2txs, _ := GenerateTestTxs(t, instructions)
 	assert.Equal(t, 2, len(l1txs))
 	assert.Equal(t, 3, len(l1txs[0]))
 	assert.Equal(t, 1, len(coordinatorL1txs[0]))

txselector/txselector.go

@@ -25,7 +25,7 @@ func (t txs) Swap(i, j int) {
 	t[i], t[j] = t[j], t[i]
 }
 func (t txs) Less(i, j int) bool {
-	return t[i].AbsoluteFee > t[j].AbsoluteFee
+	return *t[i].AbsoluteFee > *t[j].AbsoluteFee
 }
 
 // TxSelector implements all the functionalities to select the txs for the next batch

txselector/txselector_test.go

@@ -7,17 +7,21 @@ import (
 	"time"
 
 	"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/test"
+	"github.com/jmoiron/sqlx"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
 
 func initTest(t *testing.T, testSet string) *TxSelector {
 	pass := os.Getenv("POSTGRES_PASS")
-	l2DB, err := l2db.NewL2DB(5432, "localhost", "hermez", pass, "l2", 10, 512, 24*time.Hour)
+	db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
 	require.Nil(t, err)
+	l2DB := l2db.NewL2DB(db, 10, 100, 24*time.Hour)
 
 	dir, err := ioutil.TempDir("", "tmpdb")
 	require.Nil(t, err)
@@ -33,18 +37,29 @@ func initTest(t *testing.T, testSet string) *TxSelector {
 }
 func addL2Txs(t *testing.T, txsel *TxSelector, poolL2Txs []*common.PoolL2Tx) {
 	for i := 0; i < len(poolL2Txs); i++ {
-		err := txsel.l2db.AddTx(poolL2Txs[i])
+		err := txsel.l2db.AddTxTest(poolL2Txs[i])
 		require.Nil(t, err)
 	}
 }
 
+func addTokens(t *testing.T, tokens []common.Token, db *sqlx.DB) {
+	hdb := historydb.NewHistoryDB(db)
+	assert.NoError(t, hdb.Reorg(-1))
+	assert.NoError(t, hdb.AddBlock(&common.Block{
+		EthBlockNum: 1,
+	}))
+	assert.NoError(t, hdb.AddTokens(tokens))
+}
+
 func TestGetL2TxSelection(t *testing.T) {
 	txsel := initTest(t, test.SetTest0)
 	test.CleanL2DB(txsel.l2db.DB())
 
 	// generate test transactions
-	l1Txs, _, poolL2Txs := test.GenerateTestTxsFromSet(t, test.SetTest0)
+	l1Txs, _, poolL2Txs, tokens := test.GenerateTestTxsFromSet(t, test.SetTest0)
 
+	// add tokens to HistoryDB to avoid breaking FK constrains
+	addTokens(t, tokens, txsel.l2db.DB())
 	// add the first batch of transactions to the TxSelector
 	addL2Txs(t, txsel, poolL2Txs[0])