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basefee is big.Int, it won't always fit in int64

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This commit is contained in:
i-norden 2021-11-20 13:51:54 -06:00
parent b96c26fc97
commit b9a82f6350
16 changed files with 148 additions and 106 deletions
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6
statediff/indexer/database/dump/indexer.go
View File

@ -184,10 +184,10 @@ func (sdi *StateDiffIndexer) PushBlock(block *types.Block, receipts types.Receip
func (sdi *StateDiffIndexer) processHeader(tx *BatchTx, header *types.Header, headerNode node.Node, reward, td *big.Int) (string, error) {
tx.cacheIPLD(headerNode)
var baseFee *int64
var baseFee *string
if header.BaseFee != nil {
baseFee = new(int64)
*baseFee = header.BaseFee.Int64()
baseFee = new(string)
*baseFee = header.BaseFee.String()
}
headerID := header.Hash().String()

6
statediff/indexer/database/file/indexer.go
View File

@ -191,10 +191,10 @@ func (sdi *StateDiffIndexer) PushBlock(block *types.Block, receipts types.Receip
func (sdi *StateDiffIndexer) processHeader(header *types.Header, headerNode node.Node, reward, td *big.Int) string {
sdi.fileWriter.upsertIPLDNode(headerNode)
var baseFee *int64
var baseFee *string
if header.BaseFee != nil {
baseFee = new(int64)
*baseFee = header.BaseFee.Int64()
baseFee = new(string)
*baseFee = header.BaseFee.String()
}
headerID := header.Hash().String()
sdi.fileWriter.upsertHeaderCID(models.HeaderModel{

29
statediff/indexer/database/file/indexer_legacy_test.go
View File

@ -18,22 +18,21 @@ package file_test
import (
"context"
"errors"
"os"
"testing"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/statediff/indexer/database/file"
"github.com/ethereum/go-ethereum/statediff/indexer/mocks"
"github.com/ipfs/go-cid"
"github.com/jmoiron/sqlx"
"github.com/multiformats/go-multihash"
"github.com/stretchr/testify/require"
"github.com/ethereum/go-ethereum/statediff/indexer/database/sql"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/statediff/indexer/database/file"
"github.com/ethereum/go-ethereum/statediff/indexer/database/sql/postgres"
"github.com/ethereum/go-ethereum/statediff/indexer/interfaces"
"github.com/ethereum/go-ethereum/statediff/indexer/ipld"
"github.com/ethereum/go-ethereum/statediff/indexer/mocks"
"github.com/ethereum/go-ethereum/statediff/indexer/test_helpers"
)
@ -46,7 +45,10 @@ var (
func setupLegacy(t *testing.T) {
mockLegacyBlock = legacyData.MockBlock
legacyHeaderCID, _ = ipld.RawdataToCid(ipld.MEthHeader, legacyData.MockHeaderRlp, multihash.KECCAK_256)
if _, err := os.Stat(file.TestConfig.FilePath); !errors.Is(err, os.ErrNotExist) {
err := os.Remove(file.TestConfig.FilePath)
require.NoError(t, err)
}
ind, err := file.NewStateDiffIndexer(context.Background(), legacyData.Config, file.TestConfig)
require.NoError(t, err)
var tx interfaces.Batch
@ -69,7 +71,7 @@ func setupLegacy(t *testing.T) {
require.NoError(t, err)
}
test_helpers.ExpectEqual(t, tx.(*sql.BatchTx).BlockNumber, legacyData.BlockNumber.Uint64())
test_helpers.ExpectEqual(t, tx.(*file.BatchTx).BlockNumber, legacyData.BlockNumber.Uint64())
connStr := postgres.DefaultConfig.DbConnectionString()
@ -88,6 +90,7 @@ func dumpData(t *testing.T) {
}
func tearDown(t *testing.T) {
file.TearDownDB(t, sqlxdb)
err := os.Remove(file.TestConfig.FilePath)
require.NoError(t, err)
err = sqlxdb.Close()
@ -100,12 +103,12 @@ func expectTrue(t *testing.T, value bool) {
}
}
func TestFIleIndexerLegacy(t *testing.T) {
t.Run("Publish and index header IPLDs in a legacy tx", func(t *testing.T) {
func TestFileIndexerLegacy(t *testing.T) {
t.Run("Publish and index header IPLDs", func(t *testing.T) {
setupLegacy(t)
dumpData(t)
defer tearDown(t)
pgStr := `SELECT cid, cast(td AS TEXT), cast(reward AS TEXT), block_hash, base_fee
pgStr := `SELECT cid, td, reward, block_hash, base_fee
FROM eth.header_cids
WHERE block_number = $1`
// check header was properly indexed
@ -114,12 +117,10 @@ func TestFIleIndexerLegacy(t *testing.T) {
TD string
Reward string
BlockHash string `db:"block_hash"`
BaseFee *int64 `db:"base_fee"`
BaseFee *string `db:"base_fee"`
}
header := new(res)
err = sqlxdb.QueryRow(pgStr, legacyData.BlockNumber.Uint64()).Scan(
&header.CID, &header.TD, &header.Reward, &header.BlockHash, &header.BaseFee)
err = sqlxdb.QueryRowx(pgStr, legacyData.BlockNumber.Uint64()).StructScan(header)
require.NoError(t, err)
test_helpers.ExpectEqual(t, header.CID, legacyHeaderCID.String())

30
statediff/indexer/database/file/indexer_test.go
View File

@ -19,29 +19,29 @@ package file_test
import (
"bytes"
"context"
"errors"
"fmt"
"os"
"testing"
"github.com/ethereum/go-ethereum/statediff/indexer/database/file"
"github.com/jmoiron/sqlx"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/statediff/indexer/models"
"github.com/ethereum/go-ethereum/statediff/indexer/shared"
"github.com/ipfs/go-cid"
blockstore "github.com/ipfs/go-ipfs-blockstore"
dshelp "github.com/ipfs/go-ipfs-ds-help"
"github.com/jmoiron/sqlx"
"github.com/multiformats/go-multihash"
"github.com/stretchr/testify/require"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/statediff/indexer/database/sql"
"github.com/ethereum/go-ethereum/statediff/indexer/database/file"
"github.com/ethereum/go-ethereum/statediff/indexer/database/sql/postgres"
"github.com/ethereum/go-ethereum/statediff/indexer/interfaces"
"github.com/ethereum/go-ethereum/statediff/indexer/ipld"
"github.com/ethereum/go-ethereum/statediff/indexer/mocks"
"github.com/ethereum/go-ethereum/statediff/indexer/models"
"github.com/ethereum/go-ethereum/statediff/indexer/shared"
"github.com/ethereum/go-ethereum/statediff/indexer/test_helpers"
)
@ -135,7 +135,11 @@ func init() {
}
func setup(t *testing.T) {
ind, err := file.NewStateDiffIndexer(context.Background(), legacyData.Config, file.TestConfig)
if _, err := os.Stat(file.TestConfig.FilePath); !errors.Is(err, os.ErrNotExist) {
err := os.Remove(file.TestConfig.FilePath)
require.NoError(t, err)
}
ind, err = file.NewStateDiffIndexer(context.Background(), mocks.TestConfig, file.TestConfig)
require.NoError(t, err)
var tx interfaces.Batch
tx, err = ind.PushBlock(
@ -158,7 +162,7 @@ func setup(t *testing.T) {
require.NoError(t, err)
}
test_helpers.ExpectEqual(t, tx.(*sql.BatchTx).BlockNumber, mocks.BlockNumber.Uint64())
test_helpers.ExpectEqual(t, tx.(*file.BatchTx).BlockNumber, mocks.BlockNumber.Uint64())
connStr := postgres.DefaultConfig.DbConnectionString()
@ -168,7 +172,7 @@ func setup(t *testing.T) {
}
}
func TestSQLXIndexer(t *testing.T) {
func TestFileIndexer(t *testing.T) {
t.Run("Publish and index header IPLDs in a single tx", func(t *testing.T) {
setup(t)
dumpData(t)
@ -182,17 +186,18 @@ func TestSQLXIndexer(t *testing.T) {
TD string
Reward string
BlockHash string `db:"block_hash"`
BaseFee *int64 `db:"base_fee"`
BaseFee *string `db:"base_fee"`
}
header := new(res)
err = sqlxdb.QueryRowx(pgStr, mocks.BlockNumber.Uint64()).StructScan(header)
if err != nil {
t.Fatal(err)
}
test_helpers.ExpectEqual(t, header.CID, headerCID.String())
test_helpers.ExpectEqual(t, header.TD, mocks.MockBlock.Difficulty().String())
test_helpers.ExpectEqual(t, header.Reward, "2000000000000021250")
test_helpers.ExpectEqual(t, *header.BaseFee, mocks.MockHeader.BaseFee.Int64())
test_helpers.ExpectEqual(t, *header.BaseFee, mocks.MockHeader.BaseFee.String())
dc, err := cid.Decode(header.CID)
if err != nil {
t.Fatal(err)
@ -206,7 +211,6 @@ func TestSQLXIndexer(t *testing.T) {
}
test_helpers.ExpectEqual(t, data, mocks.MockHeaderRlp)
})
t.Run("Publish and index transaction IPLDs in a single tx", func(t *testing.T) {
setup(t)
dumpData(t)

74
statediff/indexer/database/file/test_helpers.go
View File

@ -1,28 +1,64 @@
package file
import "io"
import (
"testing"
type MemWriter struct {
bytes []byte
"github.com/jmoiron/sqlx"
)
// TearDownDB is used to tear down the watcher dbs after tests
func TearDownDB(t *testing.T, db *sqlx.DB) {
tx, err := db.Begin()
if err != nil {
t.Fatal(err)
}
func NewMemWriter() io.WriteCloser {
return &MemWriter{}
_, err = tx.Exec(`DELETE FROM eth.header_cids`)
if err != nil {
t.Fatal(err)
}
// Write satisfies io.WriteCloser
func (mw *MemWriter) Write(b []byte) (int, error) {
mw.bytes = append(mw.bytes, b...)
return len(b), nil
_, err = tx.Exec(`DELETE FROM eth.uncle_cids`)
if err != nil {
t.Fatal(err)
}
// Close satisfies io.WriteCloser
func (mw *MemWriter) Close() error {
mw.bytes = []byte{}
return nil
_, err = tx.Exec(`DELETE FROM eth.transaction_cids`)
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(`DELETE FROM eth.receipt_cids`)
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(`DELETE FROM eth.state_cids`)
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(`DELETE FROM eth.storage_cids`)
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(`DELETE FROM eth.state_accounts`)
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(`DELETE FROM eth.access_list_elements`)
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(`DELETE FROM eth.log_cids`)
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(`DELETE FROM blocks`)
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(`DELETE FROM nodes`)
if err != nil {
t.Fatal(err)
}
err = tx.Commit()
if err != nil {
t.Fatal(err)
}
// ReadAll returns all the bytes written to the memory writer
func (mw *MemWriter) ReadAll() []byte {
return mw.bytes
}

18
statediff/indexer/database/file/writer.go
View File

@ -121,21 +121,21 @@ const (
nodeInsert = "INSERT INTO nodes (genesis_block, network_id, node_id, client_name, chain_id) VALUES " +
"('%s', '%s', '%s', '%s', %d);\n"
ipldInsert = "INSERT INTO public.blocks (key, data) VALUES ('%s', '%x');\n"
ipldInsert = "INSERT INTO public.blocks (key, data) VALUES ('%s', '\\x%x');\n"
headerInsert = "INSERT INTO eth.header_cids (block_number, block_hash, parent_hash, cid, td, node_id, reward, " +
"state_root, tx_root, receipt_root, uncle_root, bloom, timestamp, mh_key, times_validated, base_fee) VALUES " +
"('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%x', %d, '%s', %d, %d);\n"
"('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '\\x%x', %d, '%s', %d, %s);\n"
headerInsertWithoutBaseFee = "INSERT INTO eth.header_cids (block_number, block_hash, parent_hash, cid, td, node_id, " +
"reward, state_root, tx_root, receipt_root, uncle_root, bloom, timestamp, mh_key, times_validated, base_fee) VALUES " +
"('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%x', %d, '%s', %d, NULL);\n"
"('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '\\x%x', %d, '%s', %d, NULL);\n"
uncleInsert = "INSERT INTO eth.uncle_cids (block_hash, header_id, parent_hash, cid, reward, mh_key) VALUES " +
"('%s', '%s', '%s', '%s', '%s', '%s');\n"
txInsert = "INSERT INTO eth.transaction_cids (header_id, tx_hash, cid, dst, src, index, mh_key, tx_data, tx_type) " +
"VALUES ('%s', '%s', '%s', '%s', '%s', %d, '%s', '%x', %d);\n"
"VALUES ('%s', '%s', '%s', '%s', '%s', %d, '%s', '\\x%x', %d);\n"
alInsert = "INSERT INTO eth.access_list_elements (tx_id, index, address, storage_keys) VALUES ('%s', %d, '%s', '%s');\n"
@ -143,16 +143,16 @@ const (
"post_status, log_root) VALUES ('%s', '%s', '%s', '%s', '%s', '%s', %d, '%s');\n"
logInsert = "INSERT INTO eth.log_cids (leaf_cid, leaf_mh_key, rct_id, address, index, topic0, topic1, topic2, " +
"topic3, log_data) VALUES ('%s', '%s', '%s', '%s', %d, '%s', '%s', '%s', '%s', '%x');\n"
"topic3, log_data) VALUES ('%s', '%s', '%s', '%s', %d, '%s', '%s', '%s', '%s', '\\x%x');\n"
stateInsert = "INSERT INTO eth.state_cids (header_id, state_leaf_key, cid, state_path, node_type, diff, mh_key) " +
"VALUES ('%s', '%s', '%s', '%x', %d, %t, '%s');\n"
"VALUES ('%s', '%s', '%s', '\\x%x', %d, %t, '%s');\n"
accountInsert = "INSERT INTO eth.state_accounts (header_id, state_path, balance, nonce, code_hash, storage_root) " +
"VALUES ('%s', '%x', '%s', %d, '%x', '%s');\n"
"VALUES ('%s', '\\x%x', '%s', %d, '\\x%x', '%s');\n"
storageInsert = "INSERT INTO eth.storage_cids (header_id, state_path, storage_leaf_key, cid, storage_path, " +
"node_type, diff, mh_key) VALUES ('%s', '%x', '%s', '%s', '%x', %d, %t, '%s');\n"
"node_type, diff, mh_key) VALUES ('%s', '\\x%x', '%s', '%s', '\\x%x', %d, %t, '%s');\n"
)
func (sqw *SQLWriter) upsertNode(node nodeinfo.Info) {
@ -199,7 +199,7 @@ func (sqw *SQLWriter) upsertHeaderCID(header models.HeaderModel) {
} else {
stmt = fmt.Sprintf(headerInsert, header.BlockNumber, header.BlockHash, header.ParentHash, header.CID,
header.TotalDifficulty, header.NodeID, header.Reward, header.StateRoot, header.TxRoot,
header.RctRoot, header.UncleRoot, header.Bloom, header.Timestamp, header.MhKey, 1, header.BaseFee)
header.RctRoot, header.UncleRoot, header.Bloom, header.Timestamp, header.MhKey, 1, *header.BaseFee)
}
sqw.stmts <- []byte(stmt)
indexerMetrics.blocks.Inc(1)

6
statediff/indexer/database/sql/indexer.go
View File

@ -235,10 +235,10 @@ func (sdi *StateDiffIndexer) PushBlock(block *types.Block, receipts types.Receip
func (sdi *StateDiffIndexer) processHeader(tx *BatchTx, header *types.Header, headerNode node.Node, reward, td *big.Int) (string, error) {
tx.cacheIPLD(headerNode)
var baseFee *int64
var baseFee *string
if header.BaseFee != nil {
baseFee = new(int64)
*baseFee = header.BaseFee.Int64()
baseFee = new(string)
*baseFee = header.BaseFee.String()
}
headerID := header.Hash().String()
// index header

2
statediff/indexer/database/sql/pgx_indexer_legacy_test.go
View File

@ -60,7 +60,7 @@ func setupLegacyPGX(t *testing.T) {
}
func TestPGXIndexerLegacy(t *testing.T) {
t.Run("Publish and index header IPLDs in a legacy tx", func(t *testing.T) {
t.Run("Publish and index header IPLDs", func(t *testing.T) {
setupLegacyPGX(t)
defer tearDown(t)
pgStr := `SELECT cid, cast(td AS TEXT), cast(reward AS TEXT), block_hash, base_fee

6
statediff/indexer/database/sql/pgx_indexer_test.go
View File

@ -150,7 +150,7 @@ func TestPGXIndexer(t *testing.T) {
t.Run("Publish and index header IPLDs in a single tx", func(t *testing.T) {
setupPGX(t)
defer tearDown(t)
pgStr := `SELECT cid, cast(td AS TEXT), cast(reward AS TEXT), block_hash, base_fee
pgStr := `SELECT cid, cast(td AS TEXT), cast(reward AS TEXT), block_hash, cast(base_fee AS TEXT)
FROM eth.header_cids
WHERE block_number = $1`
// check header was properly indexed
@ -159,7 +159,7 @@ func TestPGXIndexer(t *testing.T) {
TD string
Reward string
BlockHash string `db:"block_hash"`
BaseFee *int64 `db:"base_fee"`
BaseFee *string `db:"base_fee"`
}
header := new(res)
err = db.QueryRow(context.Background(), pgStr, mocks.BlockNumber.Uint64()).Scan(
@ -174,7 +174,7 @@ func TestPGXIndexer(t *testing.T) {
test_helpers.ExpectEqual(t, header.CID, headerCID.String())
test_helpers.ExpectEqual(t, header.TD, mocks.MockBlock.Difficulty().String())
test_helpers.ExpectEqual(t, header.Reward, "2000000000000021250")
test_helpers.ExpectEqual(t, *header.BaseFee, mocks.MockHeader.BaseFee.Int64())
test_helpers.ExpectEqual(t, *header.BaseFee, mocks.MockHeader.BaseFee.String())
dc, err := cid.Decode(header.CID)
if err != nil {
t.Fatal(err)

5
statediff/indexer/database/sql/postgres/pgx_test.go
View File

@ -47,10 +47,10 @@ func TestPostgresPGX(t *testing.T) {
if err != nil {
t.Fatalf("failed to connect to db with connection string: %s err: %v", pgConfig.ConnString(), err)
}
defer dbPool.Close()
if dbPool == nil {
t.Fatal("DB pool is nil")
}
dbPool.Close()
})
t.Run("serializes big.Int to db", func(t *testing.T) {
@ -111,8 +111,7 @@ func TestPostgresPGX(t *testing.T) {
badHash := fmt.Sprintf("x %s", strings.Repeat("1", 100))
badInfo := node.Info{GenesisBlock: badHash, NetworkID: "1", ID: "x123", ClientName: "geth"}
d, err := postgres.NewPGXDriver(ctx, postgres.DefaultConfig, badInfo)
defer d.Close()
_, err := postgres.NewPGXDriver(ctx, postgres.DefaultConfig, badInfo)
if err == nil {
t.Fatal("Expected an error")
}

6
statediff/indexer/database/sql/postgres/sqlx_test.go
View File

@ -109,15 +109,11 @@ func TestPostgresSQLX(t *testing.T) {
badHash := fmt.Sprintf("x %s", strings.Repeat("1", 100))
badInfo := node.Info{GenesisBlock: badHash, NetworkID: "1", ID: "x123", ClientName: "geth"}
d, err := postgres.NewSQLXDriver(ctx, postgres.DefaultConfig, badInfo)
_, err := postgres.NewSQLXDriver(ctx, postgres.DefaultConfig, badInfo)
if err == nil {
t.Fatal("Expected an error")
}
expectContainsSubstring(t, err.Error(), postgres.SettingNodeFailedMsg)
err = d.Close()
if err != nil {
t.Fatal(err)
}
})
}

2
statediff/indexer/database/sql/sqlx_indexer_legacy_test.go
View File

@ -70,7 +70,7 @@ func setupLegacySQLX(t *testing.T) {
}
func TestSQLXIndexerLegacy(t *testing.T) {
t.Run("Publish and index header IPLDs in a legacy tx", func(t *testing.T) {
t.Run("Publish and index header IPLDs", func(t *testing.T) {
setupLegacySQLX(t)
defer tearDown(t)
pgStr := `SELECT cid, td, reward, block_hash, base_fee

4
statediff/indexer/database/sql/sqlx_indexer_test.go
View File

@ -186,7 +186,7 @@ func TestSQLXIndexer(t *testing.T) {
TD string
Reward string
BlockHash string `db:"block_hash"`
BaseFee *int64 `db:"base_fee"`
BaseFee *string `db:"base_fee"`
}
header := new(res)
err = db.QueryRow(context.Background(), pgStr, mocks.BlockNumber.Uint64()).(*sqlx.Row).StructScan(header)
@ -196,7 +196,7 @@ func TestSQLXIndexer(t *testing.T) {
test_helpers.ExpectEqual(t, header.CID, headerCID.String())
test_helpers.ExpectEqual(t, header.TD, mocks.MockBlock.Difficulty().String())
test_helpers.ExpectEqual(t, header.Reward, "2000000000000021250")
test_helpers.ExpectEqual(t, *header.BaseFee, mocks.MockHeader.BaseFee.Int64())
test_helpers.ExpectEqual(t, *header.BaseFee, mocks.MockHeader.BaseFee.String())
dc, err := cid.Decode(header.CID)
if err != nil {
t.Fatal(err)

8
statediff/indexer/database/sql/test_helpers.go
View File

@ -33,6 +33,10 @@ func TearDownDB(t *testing.T, db Database) {
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(ctx, `DELETE FROM eth.uncle_cids`)
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(ctx, `DELETE FROM eth.transaction_cids`)
if err != nil {
t.Fatal(err)
@ -65,6 +69,10 @@ func TearDownDB(t *testing.T, db Database) {
if err != nil {
t.Fatal(err)
}
_, err = tx.Exec(ctx, `DELETE FROM nodes`)
if err != nil {
t.Fatal(err)
}
err = tx.Commit(ctx)
if err != nil {
t.Fatal(err)

6
statediff/indexer/mocks/test_data.go
View File

@ -22,18 +22,16 @@ import (
"crypto/rand"
"math/big"
"github.com/ethereum/go-ethereum/statediff/indexer/models"
"github.com/ethereum/go-ethereum/trie"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/statediff/indexer/models"
"github.com/ethereum/go-ethereum/statediff/test_helpers"
sdtypes "github.com/ethereum/go-ethereum/statediff/types"
"github.com/ethereum/go-ethereum/trie"
)
// Test variables

2
statediff/indexer/models/models.go
View File

@ -41,7 +41,7 @@ type HeaderModel struct {
Bloom []byte `db:"bloom"`
Timestamp uint64 `db:"timestamp"`
TimesValidated int64 `db:"times_validated"`
BaseFee *int64 `db:"base_fee"`
BaseFee *string `db:"base_fee"`
}
// UncleModel is the db model for eth.uncle_cids