Merge pull request #262 from hermeznetwork/feature/api-checks

ItemID to uint64 & check timestamp

api/account_test.go

@@ -14,7 +14,7 @@ import (
 )
 
 type testAccount struct {
-	ItemID    int                    `json:"itemId"`
+	ItemID    uint64                 `json:"itemId"`
 	Idx       apitypes.HezIdx        `json:"accountIndex"`
 	BatchNum  common.BatchNum        `json:"batchNum"`
 	PublicKey apitypes.HezBJJ        `json:"bjj"`
@@ -34,7 +34,7 @@ func genTestAccounts(accounts []common.Account, tokens []historydb.TokenWithUSD)
 	for x, account := range accounts {
 		token := getTokenByID(account.TokenID, tokens)
 		tAccount := testAccount{
-			ItemID:    x + 1,
+			ItemID:    uint64(x + 1),
 			Idx:       apitypes.HezIdx(idxToHez(account.Idx, token.Symbol)),
 			PublicKey: apitypes.NewHezBJJ(account.PublicKey),
 			EthAddr:   apitypes.NewHezEthAddr(account.EthAddr),

api/api_test.go

@@ -364,13 +364,13 @@ func doGoodReqPaginated(
 			if pag.LastReturnedItem == pag.LastItem { // No
 				break
 			} else { // Yes
-				next = pag.LastReturnedItem + 1
+				next = int(pag.LastReturnedItem + 1)
 			}
 		} else {
 			if pag.FirstReturnedItem == pag.FirstItem { // No
 				break
 			} else { // Yes
-				next = pag.FirstReturnedItem - 1
+				next = int(pag.FirstReturnedItem - 1)
 			}
 		}
 	}

api/batch_test.go

@@ -15,7 +15,7 @@ import (
 )
 
 type testBatch struct {
-	ItemID        int                       `json:"itemId"`
+	ItemID        uint64                    `json:"itemId"`
 	BatchNum      common.BatchNum           `json:"batchNum"`
 	EthBlockNum   int64                     `json:"ethereumBlockNum"`
 	EthBlockHash  ethCommon.Hash            `json:"ethereumBlockHash"`

api/bids_test.go

@@ -14,7 +14,7 @@ import (
 )
 
 type testBid struct {
-	ItemID      int               `json:"itemId"`
+	ItemID      uint64            `json:"itemId"`
 	SlotNum     int64             `json:"slotNum"`
 	BidValue    string            `json:"bidValue"`
 	EthBlockNum int64             `json:"ethereumBlockNum"`

api/exits_test.go

@@ -24,7 +24,7 @@ type testCVP struct {
 }
 
 type testExit struct {
-	ItemID                 int                    `json:"itemId"`
+	ItemID                 uint64                 `json:"itemId"`
 	BatchNum               common.BatchNum        `json:"batchNum"`
 	AccountIdx             string                 `json:"accountIndex"`
 	MerkleProof            testCVP                `json:"merkleProof"`

api/slots.go

@@ -13,15 +13,15 @@ import (
 
 // SlotAPI is a repesentation of a slot information
 type SlotAPI struct {
-	ItemID      int               `json:"itemId"`
+	ItemID      uint64            `json:"itemId"`
 	SlotNum     int64             `json:"slotNum"`
 	FirstBlock  int64             `json:"firstBlock"`
 	LastBlock   int64             `json:"lastBlock"`
 	OpenAuction bool              `json:"openAuction"`
 	WinnerBid   *historydb.BidAPI `json:"winnerBid"`
-	TotalItems  int               `json:"-"`
-	FirstItem   int               `json:"-"`
-	LastItem    int               `json:"-"`
+	TotalItems  uint64            `json:"-"`
+	FirstItem   uint64            `json:"-"`
+	LastItem    uint64            `json:"-"`
 }
 
 func getFirstLastBlock(slotNum int64) (int64, int64) {
@@ -49,14 +49,14 @@ func isOpenAuction(currentBlock, slotNum int64, auctionVars common.AuctionVariab
 	return false
 }
 
-func getPagination(totalItems int, minSlotNum, maxSlotNum *int64) *db.Pagination {
+func getPagination(totalItems uint64, minSlotNum, maxSlotNum *int64) *db.Pagination {
 	// itemID is slotNum
 	firstItem := *minSlotNum
 	lastItem := *maxSlotNum
 	pagination := &db.Pagination{
-		TotalItems: int(totalItems),
-		FirstItem:  int(firstItem),
-		LastItem:   int(lastItem),
+		TotalItems: totalItems,
+		FirstItem:  uint64(firstItem),
+		LastItem:   uint64(lastItem),
 	}
 	return pagination
 }
@@ -65,7 +65,7 @@ func newSlotAPI(slotNum, currentBlockNum int64, bid *historydb.BidAPI, auctionVa
 	firstBlock, lastBlock := getFirstLastBlock(slotNum)
 	openAuction := isOpenAuction(currentBlockNum, slotNum, *auctionVars)
 	slot := SlotAPI{
-		ItemID:      int(slotNum),
+		ItemID:      uint64(slotNum),
 		SlotNum:     slotNum,
 		FirstBlock:  firstBlock,
 		LastBlock:   lastBlock,
@@ -80,11 +80,11 @@ func newSlotsAPIFromWinnerBids(fromItem *uint, order string, bids []historydb.Bi
 		slotNum := bids[i].SlotNum
 		slot := newSlotAPI(slotNum, currentBlockNum, &bids[i], auctionVars)
 		if order == historydb.OrderAsc {
-			if slot.ItemID >= int(*fromItem) {
+			if slot.ItemID >= uint64(*fromItem) {
 				slots = append(slots, slot)
 			}
 		} else {
-			if slot.ItemID <= int(*fromItem) {
+			if slot.ItemID <= uint64(*fromItem) {
 				slots = append(slots, slot)
 			}
 		}
@@ -95,11 +95,11 @@ func newSlotsAPIFromWinnerBids(fromItem *uint, order string, bids []historydb.Bi
 func addEmptySlot(slots []SlotAPI, slotNum int64, currentBlockNum int64, auctionVars *common.AuctionVariables, fromItem *uint, order string) ([]SlotAPI, error) {
 	emptySlot := newSlotAPI(slotNum, currentBlockNum, nil, auctionVars)
 	if order == historydb.OrderAsc {
-		if emptySlot.ItemID >= int(*fromItem) {
+		if emptySlot.ItemID >= uint64(*fromItem) {
 			slots = append(slots, emptySlot)
 		}
 	} else {
-		if emptySlot.ItemID <= int(*fromItem) {
+		if emptySlot.ItemID <= uint64(*fromItem) {
 			slots = append([]SlotAPI{emptySlot}, slots...)
 		}
 	}
@@ -263,7 +263,7 @@ func getSlots(c *gin.Context) {
 	var slotMinLim, slotMaxLim int64
 	var bids []historydb.BidAPI
 	var pag *db.Pagination
-	totalItems := 0
+	totalItems := uint64(0)
 	if wonByEthereumAddress == nil {
 		slotMinLim, slotMaxLim = getLimits(minSlotNum, maxSlotNum, fromItem, limit, order)
 		// Get best bids in range maxSlotNum - minSlotNum
@@ -272,7 +272,7 @@ func getSlots(c *gin.Context) {
 			retSQLErr(err, c)
 			return
 		}
-		totalItems = int(*maxSlotNum) - int(*minSlotNum) + 1
+		totalItems = uint64(*maxSlotNum) - uint64(*minSlotNum) + 1
 	} else {
 		slotMinLim, slotMaxLim = getLimitsWithAddr(minSlotNum, maxSlotNum, fromItem, limit, order)
 		bids, pag, err = h.GetBestBidsAPI(&slotMinLim, &slotMaxLim, wonByEthereumAddress, limit, order)
@@ -281,7 +281,7 @@ func getSlots(c *gin.Context) {
 			return
 		}
 		if len(bids) > 0 {
-			totalItems = pag.TotalItems
+			totalItems = uint64(pag.TotalItems)
 			*maxSlotNum = int64(pag.LastItem)
 			*minSlotNum = int64(pag.FirstItem)
 		}
@@ -306,11 +306,11 @@ func getSlots(c *gin.Context) {
 				if slotsBids[j].SlotNum == i {
 					found = true
 					if order == historydb.OrderAsc {
-						if slotsBids[j].ItemID >= int(*fromItem) {
+						if slotsBids[j].ItemID >= uint64(*fromItem) {
 							slots = append(slots, slotsBids[j])
 						}
 					} else {
-						if slotsBids[j].ItemID <= int(*fromItem) {
+						if slotsBids[j].ItemID <= uint64(*fromItem) {
 							slots = append([]SlotAPI{slotsBids[j]}, slots...)
 						}
 					}

api/slots_test.go

@@ -28,11 +28,11 @@ type testSlotsResponse struct {
 
 func (t testSlotsResponse) GetPagination() *db.Pagination {
 	if t.Slots[0].ItemID < t.Slots[len(t.Slots)-1].ItemID {
-		t.Pagination.FirstReturnedItem = int(t.Slots[0].ItemID)
-		t.Pagination.LastReturnedItem = int(t.Slots[len(t.Slots)-1].ItemID)
+		t.Pagination.FirstReturnedItem = uint64(t.Slots[0].ItemID)
+		t.Pagination.LastReturnedItem = uint64(t.Slots[len(t.Slots)-1].ItemID)
 	} else {
-		t.Pagination.LastReturnedItem = int(t.Slots[0].ItemID)
-		t.Pagination.FirstReturnedItem = int(t.Slots[len(t.Slots)-1].ItemID)
+		t.Pagination.LastReturnedItem = uint64(t.Slots[0].ItemID)
+		t.Pagination.FirstReturnedItem = uint64(t.Slots[len(t.Slots)-1].ItemID)
 	}
 	return t.Pagination
 }

api/swagger.yml

@@ -2488,11 +2488,11 @@ components:
             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.
+                - description: The time that anyone needs to wait until a withdrawal of the funds is allowed, in seconds.
                 - example: 539573849
             emergencyModeStartingTime:
               type: integer
-              description: Ethereum block in which the emergency mode will be activated.
+              description: Second (since unix epoch) in which the emergency mode has been activated.
               example: 10
             emergencyMode:
               type: boolean
@@ -2716,11 +2716,11 @@ components:
           properties:
             maxWithdrawalDelay:
               type: integer
-              description: Maximum time delay in which the tokens can be locked in the contract. Time is measured in Ethereum blocks.
+              description: Maximum time delay in which the tokens can be locked in the contract. Time is measured in seconds.
               example: 200
             maxEmergencyModeTime:
               type: integer
-              description: Maximum amount of time in which the contract can be in emergency mode. Time is measured in Ethereum blocks.
+              description: Maximum amount of time in which the contract can be in emergency mode. Time is measured in seconds.
               example: 2000
             hermezRollup:
               allOf:

api/txshistory_test.go

@@ -34,7 +34,7 @@ type testL2Info struct {
 type testTx struct {
 	IsL1        string                 `json:"L1orL2"`
 	TxID        common.TxID            `json:"id"`
-	ItemID      int                    `json:"itemId"`
+	ItemID      uint64                 `json:"itemId"`
 	Type        common.TxType          `json:"type"`
 	Position    int                    `json:"position"`
 	FromIdx     *string                `json:"fromAccountIndex"`

db/historydb/historydb_test.go

@@ -6,6 +6,7 @@ import (
 	"math/big"
 	"os"
 	"testing"
+	"time"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/hermeznetwork/hermez-node/common"
@@ -55,6 +56,9 @@ func TestBlocks(t *testing.T) {
 	test.WipeDB(historyDB.DB())
 	// Generate fake blocks
 	blocks := test.GenBlocks(fromBlock, toBlock)
+	// Save timestamp of a block with UTC and change it without UTC
+	timestamp := time.Now().Add(time.Second * 13)
+	blocks[fromBlock].Timestamp = timestamp
 	// Insert blocks into DB
 	for i := 0; i < len(blocks); i++ {
 		err := historyDB.AddBlock(&blocks[i])
@@ -68,6 +72,11 @@ func TestBlocks(t *testing.T) {
 	for i := range fetchedBlocks {
 		assertEqualBlock(t, &blocks[i], &fetchedBlocks[i])
 	}
+	// Compare saved timestamp vs getted
+	nameZoneUTC, offsetUTC := timestamp.UTC().Zone()
+	zoneFetchedBlock, offsetFetchedBlock := fetchedBlocks[fromBlock].Timestamp.Zone()
+	assert.Equal(t, nameZoneUTC, zoneFetchedBlock)
+	assert.Equal(t, offsetUTC, offsetFetchedBlock)
 	// Get blocks from the DB one by one
 	for i := fromBlock; i < toBlock; i++ {
 		fetchedBlock, err := historyDB.GetBlock(i)
@@ -182,7 +191,7 @@ func TestTokens(t *testing.T) {
 	assert.NoError(t, err)
 	tokens = append([]common.Token{ethToken}, tokens...)
 	limit := uint(10)
-	// Fetch tokens6
+	// Fetch tokens
 	fetchedTokens, _, err := historyDB.GetTokens(nil, nil, "", nil, &limit, OrderAsc)
 	assert.NoError(t, err)
 	// Compare fetched tokens vs generated tokens
@@ -196,6 +205,24 @@ func TestTokens(t *testing.T) {
 		assert.Nil(t, token.USD)
 		assert.Nil(t, token.USDUpdate)
 	}
+
+	// Update token value
+	for i, token := range tokens {
+		value := 1.01 * float64(i)
+		assert.NoError(t, historyDB.UpdateTokenValue(token.Symbol, value))
+	}
+	// Fetch tokens
+	fetchedTokens, _, err = historyDB.GetTokens(nil, nil, "", nil, &limit, OrderAsc)
+	assert.NoError(t, err)
+	// Compare fetched tokens vs generated tokens
+	// All the tokens should have USDUpdate setted by the DB trigger
+	for i, token := range fetchedTokens {
+		value := 1.01 * float64(i)
+		assert.Equal(t, value, *token.USD)
+		nameZone, offset := token.USDUpdate.Zone()
+		assert.Equal(t, "UTC", nameZone)
+		assert.Equal(t, 0, offset)
+	}
 }
 
 func TestAccounts(t *testing.T) {

db/historydb/views.go

@@ -18,7 +18,7 @@ type TxAPI struct {
 	// Generic
 	IsL1        bool                 `meddler:"is_l1"`
 	TxID        common.TxID          `meddler:"id"`
-	ItemID      int                  `meddler:"item_id"`
+	ItemID      uint64               `meddler:"item_id"`
 	Type        common.TxType        `meddler:"type"`
 	Position    int                  `meddler:"position"`
 	FromIdx     *apitypes.HezIdx     `meddler:"from_idx"`
@@ -42,11 +42,11 @@ type TxAPI struct {
 	Nonce          *common.Nonce       `meddler:"nonce"`
 	// API extras
 	Timestamp        time.Time         `meddler:"timestamp,utctime"`
-	TotalItems       int               `meddler:"total_items"`
-	FirstItem        int               `meddler:"first_item"`
-	LastItem         int               `meddler:"last_item"`
+	TotalItems       uint64            `meddler:"total_items"`
+	FirstItem        uint64            `meddler:"first_item"`
+	LastItem         uint64            `meddler:"last_item"`
 	TokenID          common.TokenID    `meddler:"token_id"`
-	TokenItemID      int               `meddler:"token_item_id"`
+	TokenItemID      uint64            `meddler:"token_item_id"`
 	TokenEthBlockNum int64             `meddler:"token_block"`
 	TokenEthAddr     ethCommon.Address `meddler:"eth_addr"`
 	TokenName        string            `meddler:"name"`
@@ -137,7 +137,7 @@ type txWrite struct {
 
 // TokenWithUSD add USD info to common.Token
 type TokenWithUSD struct {
-	ItemID      int               `json:"itemId" meddler:"item_id"`
+	ItemID      uint64            `json:"itemId" meddler:"item_id"`
 	TokenID     common.TokenID    `json:"id" meddler:"token_id"`
 	EthBlockNum int64             `json:"ethereumBlockNum" meddler:"eth_block_num"` // Ethereum block number in which this token was registered
 	EthAddr     ethCommon.Address `json:"ethereumAddress" meddler:"eth_addr"`
@@ -146,15 +146,15 @@ type TokenWithUSD struct {
 	Decimals    uint64            `json:"decimals" meddler:"decimals"`
 	USD         *float64          `json:"USD" meddler:"usd"`
 	USDUpdate   *time.Time        `json:"fiatUpdate" meddler:"usd_update,utctime"`
-	TotalItems  int               `json:"-" meddler:"total_items"`
-	FirstItem   int               `json:"-" meddler:"first_item"`
-	LastItem    int               `json:"-" meddler:"last_item"`
+	TotalItems  uint64            `json:"-" meddler:"total_items"`
+	FirstItem   uint64            `json:"-" meddler:"first_item"`
+	LastItem    uint64            `json:"-" meddler:"last_item"`
 }
 
 // ExitAPI is a representation of a exit with additional information
 // required by the API, and extracted by joining token table
 type ExitAPI struct {
-	ItemID                 int                             `meddler:"item_id"`
+	ItemID                 uint64                          `meddler:"item_id"`
 	BatchNum               common.BatchNum                 `meddler:"batch_num"`
 	AccountIdx             apitypes.HezIdx                 `meddler:"account_idx"`
 	MerkleProof            *merkletree.CircomVerifierProof `meddler:"merkle_proof,json"`
@@ -162,11 +162,11 @@ type ExitAPI struct {
 	InstantWithdrawn       *int64                          `meddler:"instant_withdrawn"`
 	DelayedWithdrawRequest *int64                          `meddler:"delayed_withdraw_request"`
 	DelayedWithdrawn       *int64                          `meddler:"delayed_withdrawn"`
-	TotalItems             int                             `meddler:"total_items"`
-	FirstItem              int                             `meddler:"first_item"`
-	LastItem               int                             `meddler:"last_item"`
+	TotalItems             uint64                          `meddler:"total_items"`
+	FirstItem              uint64                          `meddler:"first_item"`
+	LastItem               uint64                          `meddler:"last_item"`
 	TokenID                common.TokenID                  `meddler:"token_id"`
-	TokenItemID            int                             `meddler:"token_item_id"`
+	TokenItemID            uint64                          `meddler:"token_item_id"`
 	TokenEthBlockNum       int64                           `meddler:"token_block"`
 	TokenEthAddr           ethCommon.Address               `meddler:"eth_addr"`
 	TokenName              string                          `meddler:"name"`
@@ -218,29 +218,29 @@ func (e ExitAPI) MarshalJSON() ([]byte, error) {
 // CoordinatorAPI is a representation of a coordinator with additional information
 // required by the API
 type CoordinatorAPI struct {
-	ItemID      int               `json:"itemId" meddler:"item_id"`
+	ItemID      uint64            `json:"itemId" meddler:"item_id"`
 	Bidder      ethCommon.Address `json:"bidderAddr" meddler:"bidder_addr"`
 	Forger      ethCommon.Address `json:"forgerAddr" meddler:"forger_addr"`
 	EthBlockNum int64             `json:"ethereumBlock" meddler:"eth_block_num"`
 	URL         string            `json:"URL" meddler:"url"`
-	TotalItems  int               `json:"-" meddler:"total_items"`
-	FirstItem   int               `json:"-" meddler:"first_item"`
-	LastItem    int               `json:"-" meddler:"last_item"`
+	TotalItems  uint64            `json:"-" meddler:"total_items"`
+	FirstItem   uint64            `json:"-" meddler:"first_item"`
+	LastItem    uint64            `json:"-" meddler:"last_item"`
 }
 
 // AccountAPI is a representation of a account with additional information
 // required by the API
 type AccountAPI struct {
-	ItemID           int                 `meddler:"item_id"`
+	ItemID           uint64              `meddler:"item_id"`
 	Idx              apitypes.HezIdx     `meddler:"idx"`
 	BatchNum         common.BatchNum     `meddler:"batch_num"`
 	PublicKey        apitypes.HezBJJ     `meddler:"bjj"`
 	EthAddr          apitypes.HezEthAddr `meddler:"eth_addr"`
 	Nonce            common.Nonce        `meddler:"-"` // max of 40 bits used
 	Balance          *apitypes.BigIntStr `meddler:"-"` // max of 192 bits used
-	TotalItems       int                 `meddler:"total_items"`
-	FirstItem        int                 `meddler:"first_item"`
-	LastItem         int                 `meddler:"last_item"`
+	TotalItems       uint64              `meddler:"total_items"`
+	FirstItem        uint64              `meddler:"first_item"`
+	LastItem         uint64              `meddler:"last_item"`
 	TokenID          common.TokenID      `meddler:"token_id"`
 	TokenItemID      int                 `meddler:"token_item_id"`
 	TokenEthBlockNum int64               `meddler:"token_block"`
@@ -280,7 +280,7 @@ func (account AccountAPI) MarshalJSON() ([]byte, error) {
 // BatchAPI is a representation of a batch with additional information
 // required by the API, and extracted by joining block table
 type BatchAPI struct {
-	ItemID        int                    `json:"itemId" meddler:"item_id"`
+	ItemID        uint64                 `json:"itemId" meddler:"item_id"`
 	BatchNum      common.BatchNum        `json:"batchNum" meddler:"batch_num"`
 	EthBlockNum   int64                  `json:"ethereumBlockNum" meddler:"eth_block_num"`
 	EthBlockHash  ethCommon.Hash         `json:"ethereumBlockHash" meddler:"hash"`
@@ -293,9 +293,9 @@ type BatchAPI struct {
 	ExitRoot      apitypes.BigIntStr     `json:"exitRoot" meddler:"exit_root"`
 	ForgeL1TxsNum *int64                 `json:"forgeL1TransactionsNum" meddler:"forge_l1_txs_num"`
 	SlotNum       int64                  `json:"slotNum" meddler:"slot_num"`
-	TotalItems    int                    `json:"-" meddler:"total_items"`
-	FirstItem     int                    `json:"-" meddler:"first_item"`
-	LastItem      int                    `json:"-" meddler:"last_item"`
+	TotalItems    uint64                 `json:"-" meddler:"total_items"`
+	FirstItem     uint64                 `json:"-" meddler:"first_item"`
+	LastItem      uint64                 `json:"-" meddler:"last_item"`
 }
 
 // Network define status of the network
@@ -319,7 +319,7 @@ type Metrics struct {
 // BidAPI is a representation of a bid with additional information
 // required by the API
 type BidAPI struct {
-	ItemID      int                `json:"itemId" meddler:"item_id"`
+	ItemID      uint64             `json:"itemId" meddler:"item_id"`
 	SlotNum     int64              `json:"slotNum" meddler:"slot_num"`
 	BidValue    apitypes.BigIntStr `json:"bidValue" meddler:"bid_value"`
 	EthBlockNum int64              `json:"ethereumBlockNum" meddler:"eth_block_num"`
@@ -327,7 +327,7 @@ type BidAPI struct {
 	Forger      ethCommon.Address  `json:"forgerAddr" meddler:"forger_addr"`
 	URL         string             `json:"URL" meddler:"url"`
 	Timestamp   time.Time          `json:"timestamp" meddler:"timestamp,utctime"`
-	TotalItems  int                `json:"-" meddler:"total_items"`
-	FirstItem   int                `json:"-" meddler:"first_item"`
-	LastItem    int                `json:"-" meddler:"last_item"`
+	TotalItems  uint64             `json:"-" meddler:"total_items"`
+	FirstItem   uint64             `json:"-" meddler:"first_item"`
+	LastItem    uint64             `json:"-" meddler:"last_item"`
 }

db/l2db/l2db_test.go

@@ -90,6 +90,9 @@ func TestAddTxTest(t *testing.T) {
 		assert.NoError(t, err)
 		// assertReadTx(t, commonToRead(tx, tokens), fetchedTx)
 		assertTx(t, tx, fetchedTx)
+		nameZone, offset := fetchedTx.Timestamp.Zone()
+		assert.Equal(t, "UTC", nameZone)
+		assert.Equal(t, 0, offset)
 	}
 }
 
@@ -419,5 +422,8 @@ func TestAuth(t *testing.T) {
 		assert.Equal(t, auths[i].BJJ, auth.BJJ)
 		assert.Equal(t, auths[i].Signature, auth.Signature)
 		assert.Equal(t, auths[i].Timestamp.Unix(), auths[i].Timestamp.Unix())
+		nameZone, offset := auths[i].Timestamp.Zone()
+		assert.Equal(t, "UTC", nameZone)
+		assert.Equal(t, 0, offset)
 	}
 }

db/l2db/views.go

@@ -62,9 +62,9 @@ type PoolTxAPI struct {
 	// Extra read fileds
 	BatchNum         *common.BatchNum  `meddler:"batch_num"`
 	Timestamp        time.Time         `meddler:"timestamp,utctime"`
-	TotalItems       int               `meddler:"total_items"`
+	TotalItems       uint64            `meddler:"total_items"`
 	TokenID          common.TokenID    `meddler:"token_id"`
-	TokenItemID      int               `meddler:"token_item_id"`
+	TokenItemID      uint64            `meddler:"token_item_id"`
 	TokenEthBlockNum int64             `meddler:"eth_block_num"`
 	TokenEthAddr     ethCommon.Address `meddler:"eth_addr"`
 	TokenName        string            `meddler:"name"`

db/utils.go

@@ -181,11 +181,11 @@ func SlicePtrsToSlice(slice interface{}) interface{} {
 
 // Pagination give information on the items of a query
 type Pagination struct {
-	TotalItems        int `json:"totalItems"`
-	FirstItem         int `json:"firstItem"`
-	LastItem          int `json:"lastItem"`
-	FirstReturnedItem int `json:"-"`
-	LastReturnedItem  int `json:"-"`
+	TotalItems        uint64 `json:"totalItems"`
+	FirstItem         uint64 `json:"firstItem"`
+	LastItem          uint64 `json:"lastItem"`
+	FirstReturnedItem uint64 `json:"-"`
+	LastReturnedItem  uint64 `json:"-"`
 }
 
 // Paginationer is an interface that allows getting pagination info on any struct