bump ipld-eth-db to v5.2.1-alpha

This updates the reference to a tag that does exist.  It also switches to the git.vdb.to repo.

Reviewed-on: #263

go.mod

@@ -295,9 +295,9 @@ require (
 
 replace (
 	github.com/cerc-io/eth-ipfs-state-validator/v5 => git.vdb.to/cerc-io/eth-ipfs-state-validator/v5 v5.1.1-alpha
-	github.com/cerc-io/eth-iterator-utils => git.vdb.to/cerc-io/eth-iterator-utils v0.1.2
+	github.com/cerc-io/eth-iterator-utils => git.vdb.to/cerc-io/eth-iterator-utils v0.1.2-beta
 	github.com/cerc-io/eth-testing => git.vdb.to/cerc-io/eth-testing v0.3.1
-	github.com/cerc-io/ipld-eth-statedb => git.vdb.to/cerc-io/ipld-eth-statedb v0.0.6-alpha
+	github.com/cerc-io/ipld-eth-statedb => git.vdb.to/cerc-io/ipld-eth-statedb v0.0.7-alpha-0.0.1 // git.vdb.to/cerc-io/ipld-eth-statedb v0.0.6-alpha
 	github.com/cerc-io/plugeth-statediff => git.vdb.to/cerc-io/plugeth-statediff v0.1.4
 	github.com/ethereum/go-ethereum => git.vdb.to/cerc-io/plugeth v0.0.0-20230808125822-691dc334fab1
 	github.com/openrelayxyz/plugeth-utils => git.vdb.to/cerc-io/plugeth-utils v0.0.0-20230706160122-cd41de354c46

go.sum

@@ -47,11 +47,11 @@ dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D
 git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 git.vdb.to/cerc-io/eth-ipfs-state-validator/v5 v5.1.1-alpha h1:tophBXLyhMKmQILsxjfUTwQW+TGHtEJNajVULJJLhe0=
 git.vdb.to/cerc-io/eth-ipfs-state-validator/v5 v5.1.1-alpha/go.mod h1:e/9QV7BeaAvR+E6G3fab5+OxKGOEwCmJzs8WReuqKZM=
-git.vdb.to/cerc-io/eth-iterator-utils v0.1.2 h1:+3+T+J21J/VkhlCFujl8HT4XuwebavIuKj0+qfE+0QM=
-git.vdb.to/cerc-io/eth-iterator-utils v0.1.2/go.mod h1:OvXbdWbZ5viBXC/Ui1EkhsSmGB+AUX+TjGa3UDAfjfg=
+git.vdb.to/cerc-io/eth-iterator-utils v0.1.2-beta h1:pv1HCRlD7/1X7i35MWylwGhji0aWI4QujsrJoYOW55U=
+git.vdb.to/cerc-io/eth-iterator-utils v0.1.2-beta/go.mod h1:OvXbdWbZ5viBXC/Ui1EkhsSmGB+AUX+TjGa3UDAfjfg=
 git.vdb.to/cerc-io/eth-testing v0.3.1 h1:sPnlMev6oEgTjsW7GtUkSsjKNG/+X6P9q0izSejLGpM=
-git.vdb.to/cerc-io/ipld-eth-statedb v0.0.6-alpha h1:0YnoohjuK7w2JhIqLDDyVUNnu1RjyeDqqyhm6MojD74=
-git.vdb.to/cerc-io/ipld-eth-statedb v0.0.6-alpha/go.mod h1:cCQCfIUX5vTZBHeAfLa8wLUeLKO8kygDPm7Afc+MMI8=
+git.vdb.to/cerc-io/ipld-eth-statedb v0.0.7-alpha-0.0.1 h1:wIT5/LEYlBSDp2lzY8R9+RIkM4DALSP4VJg7FpKxR+c=
+git.vdb.to/cerc-io/ipld-eth-statedb v0.0.7-alpha-0.0.1/go.mod h1:isx+cwWmkOL6hzfbcjRt9lDR4vxT0s0kCR8wD01H1/8=
 git.vdb.to/cerc-io/plugeth v0.0.0-20230808125822-691dc334fab1 h1:KLjxHwp9Zp7xhECccmJS00RiL+VwTuUGLU7qeIctg8g=
 git.vdb.to/cerc-io/plugeth v0.0.0-20230808125822-691dc334fab1/go.mod h1:cYXZu70+6xmDgIgrTD81GPasv16piiAFJnKyAbwVPMU=
 git.vdb.to/cerc-io/plugeth-statediff v0.1.4 h1:swDJDAk1/yu6MOHAvxeyZz+MS1H9FCmSWGQRswFxFEw=

pkg/eth/api.go

@@ -27,7 +27,9 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/cerc-io/plugeth-statediff"
+	"github.com/ethereum/go-ethereum/core/vm"
+
+	statediff "github.com/cerc-io/plugeth-statediff"
 	"github.com/ethereum/go-ethereum/accounts/abi"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
@@ -1005,9 +1007,52 @@ func (diff *StateOverride) Apply(state *ipld_direct_state.StateDB) error {
 			}
 		}
 	}
+	// Now finalize the changes. Finalize is normally performed between transactions.
+	// By using finalize, the overrides are semantically behaving as
+	// if they were created in a transaction just before the tracing occur.
+	state.Finalise(false)
 	return nil
 }
 
+// BlockOverrides is a set of header fields to override.
+type BlockOverrides struct {
+	Number     *hexutil.Big
+	Difficulty *hexutil.Big
+	Time       *hexutil.Uint64
+	GasLimit   *hexutil.Uint64
+	Coinbase   *common.Address
+	Random     *common.Hash
+	BaseFee    *hexutil.Big
+}
+
+// Apply overrides the given header fields into the given block context.
+func (diff *BlockOverrides) Apply(blockCtx *vm.BlockContext) {
+	if diff == nil {
+		return
+	}
+	if diff.Number != nil {
+		blockCtx.BlockNumber = diff.Number.ToInt()
+	}
+	if diff.Difficulty != nil {
+		blockCtx.Difficulty = diff.Difficulty.ToInt()
+	}
+	if diff.Time != nil {
+		blockCtx.Time = uint64(*diff.Time)
+	}
+	if diff.GasLimit != nil {
+		blockCtx.GasLimit = uint64(*diff.GasLimit)
+	}
+	if diff.Coinbase != nil {
+		blockCtx.Coinbase = *diff.Coinbase
+	}
+	if diff.Random != nil {
+		blockCtx.Random = diff.Random
+	}
+	if diff.BaseFee != nil {
+		blockCtx.BaseFee = diff.BaseFee.ToInt()
+	}
+}
+
 // Call executes the given transaction on the state for the given block number.
 //
 // Additionally, the caller can specify a batch of contract for fields overriding.

pkg/eth/debug_test/debug_test.go

@@ -0,0 +1,466 @@
+// VulcanizeDB
+// Copyright © 2019 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package eth_debug_test
+
+import (
+	"bytes"
+	"context"
+	"crypto/ecdsa"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"math/big"
+	"sort"
+	"time"
+
+	statediff "github.com/cerc-io/plugeth-statediff"
+	"github.com/cerc-io/plugeth-statediff/adapt"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/consensus"
+	"github.com/ethereum/go-ethereum/consensus/ethash"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/rawdb"
+	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/core/vm"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/eth/tracers"
+	"github.com/ethereum/go-ethereum/eth/tracers/logger"
+	"github.com/ethereum/go-ethereum/ethdb"
+	"github.com/ethereum/go-ethereum/params"
+	"github.com/ethereum/go-ethereum/rpc"
+	"github.com/jmoiron/sqlx"
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+
+	"github.com/cerc-io/ipld-eth-server/v5/pkg/eth"
+	"github.com/cerc-io/ipld-eth-server/v5/pkg/shared"
+)
+
+var (
+	db          *sqlx.DB
+	chainConfig = &*params.TestChainConfig
+	mockTD      = big.NewInt(1337)
+	ctx         = context.Background()
+	tb          *testBackend
+	accounts    Accounts
+	genBlocks   int
+)
+
+var _ = BeforeSuite(func() {
+	// db and type initializations
+	var err error
+	db = shared.SetupDB()
+
+	// Initialize test accounts
+	accounts = newAccounts(3)
+	genesis := &core.Genesis{
+		Config: chainConfig,
+		Alloc: core.GenesisAlloc{
+			accounts[0].addr: {Balance: big.NewInt(params.Ether)},
+			accounts[1].addr: {Balance: big.NewInt(params.Ether)},
+			accounts[2].addr: {Balance: big.NewInt(params.Ether)},
+		},
+	}
+	genBlocks = 10
+	signer := types.HomesteadSigner{}
+	tb, blocks, receipts := newTestBackend(genBlocks, genesis, func(i int, b *core.BlockGen) {
+		// Transfer from account[0] to account[1]
+		//    value: 1000 wei
+		//    fee:   0 wei
+		tx, _ := types.SignTx(types.NewTransaction(uint64(i), accounts[1].addr, big.NewInt(1000), params.TxGas, b.BaseFee(), nil), signer, accounts[0].key)
+		b.AddTx(tx)
+	})
+	transformer := shared.SetupTestStateDiffIndexer(ctx, chainConfig, blocks[0].Hash())
+	params := statediff.Params{}
+
+	// iterate over the blocks, generating statediff payloads, and transforming the data into Postgres
+	builder := statediff.NewBuilder(adapt.GethStateView(tb.chain.StateCache()))
+	for i, block := range blocks {
+		var args statediff.Args
+		if i == 0 {
+			args = statediff.Args{
+				OldStateRoot: common.Hash{},
+				NewStateRoot: block.Root(),
+				BlockNumber:  block.Number(),
+				BlockHash:    block.Hash(),
+			}
+		} else {
+			args = statediff.Args{
+				OldStateRoot: blocks[i-1].Root(),
+				NewStateRoot: block.Root(),
+				BlockNumber:  block.Number(),
+				BlockHash:    block.Hash(),
+			}
+		}
+		diff, err := builder.BuildStateDiffObject(args, params)
+		Expect(err).ToNot(HaveOccurred())
+		tx, err := transformer.PushBlock(block, receipts[i], mockTD)
+		Expect(err).ToNot(HaveOccurred())
+		defer tx.RollbackOnFailure(err)
+
+		for _, node := range diff.Nodes {
+			err = transformer.PushStateNode(tx, node, block.Hash().String())
+			Expect(err).ToNot(HaveOccurred())
+		}
+
+		for _, ipld := range diff.IPLDs {
+			err = transformer.PushIPLD(tx, ipld)
+			Expect(err).ToNot(HaveOccurred())
+		}
+
+		err = tx.Submit()
+		Expect(err).ToNot(HaveOccurred())
+	}
+
+	backend, err := eth.NewEthBackend(db, &eth.Config{
+		ChainConfig: chainConfig,
+		VMConfig:    vm.Config{},
+		RPCGasCap:   big.NewInt(10000000000), // Max gas capacity for a rpc call.
+		GroupCacheConfig: &shared.GroupCacheConfig{
+			StateDB: shared.GroupConfig{
+				Name:                   "eth_debug_test",
+				CacheSizeInMB:          8,
+				CacheExpiryInMins:      60,
+				LogStatsIntervalInSecs: 0,
+			},
+		},
+	})
+	Expect(err).ToNot(HaveOccurred())
+
+	tracingAPI, _ = eth.NewTracingAPI(backend, nil, eth.APIConfig{StateDiffTimeout: shared.DefaultStateDiffTimeout})
+	tb.teardown()
+})
+
+var _ = AfterSuite(func() {
+	shared.TearDownDB(db)
+})
+
+var (
+	tracingAPI *eth.TracingAPI
+)
+
+var _ = Describe("eth state reading tests", func() {
+	Describe("debug_traceCall", func() {
+		It("Works", func() {
+			var testSuite = []struct {
+				blockNumber rpc.BlockNumber
+				call        eth.TransactionArgs
+				config      *eth.TraceCallConfig
+				expectErr   error
+				expect      string
+			}{
+				// Standard JSON trace upon the genesis, plain transfer.
+				{
+					blockNumber: rpc.BlockNumber(0),
+					call: eth.TransactionArgs{
+						From:  &accounts[0].addr,
+						To:    &accounts[1].addr,
+						Value: (*hexutil.Big)(big.NewInt(1000)),
+					},
+					config:    nil,
+					expectErr: nil,
+					expect:    `{"gas":21000,"failed":false,"returnValue":"","structLogs":[]}`,
+				},
+				// Standard JSON trace upon the head, plain transfer.
+				{
+					blockNumber: rpc.BlockNumber(genBlocks),
+					call: eth.TransactionArgs{
+						From:  &accounts[0].addr,
+						To:    &accounts[1].addr,
+						Value: (*hexutil.Big)(big.NewInt(1000)),
+					},
+					config:    nil,
+					expectErr: nil,
+					expect:    `{"gas":21000,"failed":false,"returnValue":"","structLogs":[]}`,
+				},
+				// Standard JSON trace upon the non-existent block, error expects
+				{
+					blockNumber: rpc.BlockNumber(genBlocks + 1),
+					call: eth.TransactionArgs{
+						From:  &accounts[0].addr,
+						To:    &accounts[1].addr,
+						Value: (*hexutil.Big)(big.NewInt(1000)),
+					},
+					config:    nil,
+					expectErr: fmt.Errorf("block #%d not found", genBlocks+1),
+					//expect:    nil,
+				},
+				// Standard JSON trace upon the latest block
+				{
+					blockNumber: rpc.LatestBlockNumber,
+					call: eth.TransactionArgs{
+						From:  &accounts[0].addr,
+						To:    &accounts[1].addr,
+						Value: (*hexutil.Big)(big.NewInt(1000)),
+					},
+					config:    nil,
+					expectErr: nil,
+					expect:    `{"gas":21000,"failed":false,"returnValue":"","structLogs":[]}`,
+				},
+				// Tracing on 'pending' should fail:
+				{
+					blockNumber: rpc.PendingBlockNumber,
+					call: eth.TransactionArgs{
+						From:  &accounts[0].addr,
+						To:    &accounts[1].addr,
+						Value: (*hexutil.Big)(big.NewInt(1000)),
+					},
+					config:    nil,
+					expectErr: fmt.Errorf("tracing on top of pending is not supported"),
+				},
+				{
+					blockNumber: rpc.LatestBlockNumber,
+					call: eth.TransactionArgs{
+						From:  &accounts[0].addr,
+						Input: &hexutil.Bytes{0x43}, // blocknumber
+					},
+					config: &eth.TraceCallConfig{
+						BlockOverrides: &eth.BlockOverrides{Number: (*hexutil.Big)(big.NewInt(0x1337))},
+					},
+					expectErr: nil,
+					expect: ` {"gas":53018,"failed":false,"returnValue":"","structLogs":[
+		{"pc":0,"op":"NUMBER","gas":9999946984,"gasCost":2,"depth":1,"stack":[]},
+		{"pc":1,"op":"STOP","gas":9999946982,"gasCost":0,"depth":1,"stack":["0x1337"]}]}`,
+				},
+			}
+			for _, testspec := range testSuite {
+				result, err := tracingAPI.TraceCall(context.Background(), testspec.call, rpc.BlockNumberOrHash{BlockNumber: &testspec.blockNumber}, testspec.config)
+				if testspec.expectErr != nil {
+					Expect(err).To(HaveOccurred())
+					Expect(err).To(Equal(testspec.expectErr))
+				} else {
+					Expect(err).ToNot(HaveOccurred())
+					var have *logger.ExecutionResult
+					err := json.Unmarshal(result.(json.RawMessage), &have)
+					Expect(err).ToNot(HaveOccurred())
+					var want *logger.ExecutionResult
+					err = json.Unmarshal([]byte(testspec.expect), &want)
+					Expect(err).ToNot(HaveOccurred())
+					Expect(have).To(Equal(want))
+				}
+			}
+		})
+	})
+
+	Describe("debug_traceBlock", func() {
+		It("Works", func() {
+			var testSuite = []struct {
+				blockNumber rpc.BlockNumber
+				config      *eth.TraceConfig
+				want        string
+				expectErr   error
+			}{
+				// Trace genesis block, expect error
+				{
+					blockNumber: rpc.BlockNumber(0),
+					expectErr:   errors.New("genesis is not traceable"),
+				},
+				// Trace head block
+				{
+					blockNumber: rpc.BlockNumber(genBlocks),
+					want:        `[{"result":{"gas":21000,"failed":false,"returnValue":"","structLogs":[]}}]`,
+				},
+				// Trace non-existent block
+				{
+					blockNumber: rpc.BlockNumber(genBlocks + 1),
+					expectErr:   fmt.Errorf("block #%d not found", genBlocks+1),
+				},
+				// Trace latest block
+				{
+					blockNumber: rpc.LatestBlockNumber,
+					want:        `[{"result":{"gas":21000,"failed":false,"returnValue":"","structLogs":[]}}]`,
+				},
+				// Trace pending block
+				{
+					blockNumber: rpc.PendingBlockNumber,
+					expectErr:   errors.New("pending block number not supported"),
+				},
+			}
+			for _, tc := range testSuite {
+				result, err := tracingAPI.TraceBlockByNumber(context.Background(), tc.blockNumber, tc.config)
+				if tc.expectErr != nil {
+					Expect(err).To(HaveOccurred())
+					Expect(err).To(Equal(tc.expectErr))
+				} else {
+					Expect(err).ToNot(HaveOccurred())
+					have, _ := json.Marshal(result)
+					want := tc.want
+					Expect(string(have)).To(Equal(want))
+				}
+			}
+		})
+	})
+})
+
+type testBackend struct {
+	chainConfig *params.ChainConfig
+	engine      consensus.Engine
+	chaindb     ethdb.Database
+	chain       *core.BlockChain
+
+	refHook func() // Hook is invoked when the requested state is referenced
+	relHook func() // Hook is invoked when the requested state is released
+}
+
+func (b *testBackend) HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error) {
+	return b.chain.GetHeaderByHash(hash), nil
+}
+
+func (b *testBackend) HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error) {
+	if number == rpc.PendingBlockNumber || number == rpc.LatestBlockNumber {
+		return b.chain.CurrentHeader(), nil
+	}
+	return b.chain.GetHeaderByNumber(uint64(number)), nil
+}
+
+func (b *testBackend) BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
+	return b.chain.GetBlockByHash(hash), nil
+}
+
+func (b *testBackend) BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error) {
+	if number == rpc.PendingBlockNumber || number == rpc.LatestBlockNumber {
+		return b.chain.GetBlockByNumber(b.chain.CurrentBlock().Number.Uint64()), nil
+	}
+	return b.chain.GetBlockByNumber(uint64(number)), nil
+}
+
+func (b *testBackend) GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error) {
+	tx, hash, blockNumber, index := rawdb.ReadTransaction(b.chaindb, txHash)
+	return tx, hash, blockNumber, index, nil
+}
+
+func (b *testBackend) RPCGasCap() uint64 {
+	return 25000000
+}
+
+func (b *testBackend) ChainConfig() *params.ChainConfig {
+	return b.chainConfig
+}
+
+func (b *testBackend) Engine() consensus.Engine {
+	return b.engine
+}
+
+func (b *testBackend) ChainDb() ethdb.Database {
+	return b.chaindb
+}
+
+// teardown releases the associated resources.
+func (b *testBackend) teardown() {
+	b.chain.Stop()
+}
+
+var (
+	errStateNotFound = errors.New("state not found")
+	errBlockNotFound = errors.New("block not found")
+)
+
+func (b *testBackend) StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, readOnly bool, preferDisk bool) (*state.StateDB, tracers.StateReleaseFunc, error) {
+	statedb, err := b.chain.StateAt(block.Root())
+	if err != nil {
+		return nil, nil, errStateNotFound
+	}
+	if b.refHook != nil {
+		b.refHook()
+	}
+	release := func() {
+		if b.relHook != nil {
+			b.relHook()
+		}
+	}
+	return statedb, release, nil
+}
+
+func (b *testBackend) StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (*core.Message, vm.BlockContext, *state.StateDB, tracers.StateReleaseFunc, error) {
+	parent := b.chain.GetBlock(block.ParentHash(), block.NumberU64()-1)
+	if parent == nil {
+		return nil, vm.BlockContext{}, nil, nil, errBlockNotFound
+	}
+	statedb, release, err := b.StateAtBlock(ctx, parent, reexec, nil, true, false)
+	if err != nil {
+		return nil, vm.BlockContext{}, nil, nil, errStateNotFound
+	}
+	if txIndex == 0 && len(block.Transactions()) == 0 {
+		return nil, vm.BlockContext{}, statedb, release, nil
+	}
+	// Recompute transactions up to the target index.
+	signer := types.MakeSigner(b.chainConfig, block.Number())
+	for idx, tx := range block.Transactions() {
+		msg, _ := core.TransactionToMessage(tx, signer, block.BaseFee())
+		txContext := core.NewEVMTxContext(msg)
+		context := core.NewEVMBlockContext(block.Header(), b.chain, nil)
+		if idx == txIndex {
+			return msg, context, statedb, release, nil
+		}
+		vmenv := vm.NewEVM(context, txContext, statedb, b.chainConfig, vm.Config{})
+		if _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(tx.Gas())); err != nil {
+			return nil, vm.BlockContext{}, nil, nil, fmt.Errorf("transaction %#x failed: %v", tx.Hash(), err)
+		}
+		statedb.Finalise(vmenv.ChainConfig().IsEIP158(block.Number()))
+	}
+	return nil, vm.BlockContext{}, nil, nil, fmt.Errorf("transaction index %d out of range for block %#x", txIndex, block.Hash())
+}
+
+// testBackend creates a new test backend. OBS: After test is done, teardown must be
+// invoked in order to release associated resources.
+func newTestBackend(n int, gspec *core.Genesis, generator func(i int, b *core.BlockGen)) (*testBackend, types.Blocks, []types.Receipts) {
+	backend := &testBackend{
+		chainConfig: gspec.Config,
+		engine:      ethash.NewFaker(),
+		chaindb:     rawdb.NewMemoryDatabase(),
+	}
+	// Generate blocks for testing
+	_, blocks, receipts := core.GenerateChainWithGenesis(gspec, backend.engine, n, generator)
+
+	// Import the canonical chain
+	cacheConfig := &core.CacheConfig{
+		TrieCleanLimit:    256,
+		TrieDirtyLimit:    256,
+		TrieTimeLimit:     5 * time.Minute,
+		SnapshotLimit:     0,
+		TrieDirtyDisabled: true, // Archive mode
+	}
+	chain, err := core.NewBlockChain(backend.chaindb, cacheConfig, gspec, nil, backend.engine, vm.Config{}, nil, nil)
+	Expect(err).ToNot(HaveOccurred())
+	n, err = chain.InsertChain(blocks)
+	Expect(err).ToNot(HaveOccurred())
+	backend.chain = chain
+	return backend, blocks, receipts
+}
+
+type Account struct {
+	key  *ecdsa.PrivateKey
+	addr common.Address
+}
+
+type Accounts []Account
+
+func (a Accounts) Len() int           { return len(a) }
+func (a Accounts) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
+func (a Accounts) Less(i, j int) bool { return bytes.Compare(a[i].addr.Bytes(), a[j].addr.Bytes()) < 0 }
+
+func newAccounts(n int) (accounts Accounts) {
+	for i := 0; i < n; i++ {
+		key, _ := crypto.GenerateKey()
+		addr := crypto.PubkeyToAddress(key.PublicKey)
+		accounts = append(accounts, Account{key: key, addr: addr})
+	}
+	sort.Sort(accounts)
+	return accounts
+}

pkg/eth/debug_test/eth_suite_test.go

@@ -0,0 +1,29 @@
+// VulcanizeDB
+// Copyright © 2019 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package eth_debug_test
+
+import (
+	"testing"
+
+	. "github.com/onsi/ginkgo/v2"
+	. "github.com/onsi/gomega"
+)
+
+func TestETHSuite(t *testing.T) {
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "ipld-eth-server/pkg/eth/state_test")
+}

pkg/eth/state_test/state_test.go

@@ -23,7 +23,7 @@ import (
 	"math/big"
 	"os"
 
-	"github.com/cerc-io/plugeth-statediff"
+	statediff "github.com/cerc-io/plugeth-statediff"
 	"github.com/cerc-io/plugeth-statediff/adapt"
 	"github.com/ethereum/go-ethereum/accounts/abi"
 	"github.com/ethereum/go-ethereum/common"

pkg/eth/test_helpers/chain_indexer.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"math/big"
 
-	"github.com/cerc-io/plugeth-statediff"
+	statediff "github.com/cerc-io/plugeth-statediff"
 	"github.com/cerc-io/plugeth-statediff/adapt"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/state"

pkg/eth/tracing.go

@@ -0,0 +1,476 @@
+package eth
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"runtime"
+	"sync"
+	"time"
+
+	ipld_direct_state "github.com/cerc-io/ipld-eth-statedb/direct_by_leaf"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/consensus"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/core/vm"
+	"github.com/ethereum/go-ethereum/eth/tracers"
+	"github.com/ethereum/go-ethereum/eth/tracers/logger"
+	"github.com/ethereum/go-ethereum/rlp"
+	"github.com/ethereum/go-ethereum/rpc"
+)
+
+const (
+	// defaultTraceTimeout is the amount of time a single transaction can execute
+	// by default before being forcefully aborted.
+	defaultTraceTimeout = 5 * time.Second
+)
+
+// TracingAPI is the collection of tracing APIs exposed over the private debugging endpoint.
+type TracingAPI struct {
+	backend *Backend
+	rpc     *rpc.Client
+	config  APIConfig
+}
+
+// NewTracingAPI creates a new TracingAPI with the provided underlying Backend
+func NewTracingAPI(b *Backend, client *rpc.Client, config APIConfig) (*TracingAPI, error) {
+	if b == nil {
+		return nil, errors.New("ipld-eth-server must be configured with an ethereum backend")
+	}
+	if config.ForwardEthCalls && client == nil {
+		return nil, errors.New("ipld-eth-server is configured to forward eth_calls to proxy node but no proxy node is configured")
+	}
+	if config.ForwardGetStorageAt && client == nil {
+		return nil, errors.New("ipld-eth-server is configured to forward eth_getStorageAt to proxy node but no proxy node is configured")
+	}
+	if config.ProxyOnError && client == nil {
+		return nil, errors.New("ipld-eth-server is configured to forward all calls to proxy node on errors but no proxy node is configured")
+	}
+	return &TracingAPI{
+		backend: b,
+		rpc:     client,
+		config:  config,
+	}, nil
+}
+
+// TraceConfig holds extra parameters to trace functions.
+type TraceConfig struct {
+	*logger.Config
+	Tracer  *string
+	Timeout *string
+	Reexec  *uint64
+	// Config specific to given tracer. Note struct logger
+	// config are historically embedded in main object.
+	TracerConfig json.RawMessage
+}
+
+// TraceCallConfig is the config for traceCall API. It holds one more
+// field to override the state for tracing.
+type TraceCallConfig struct {
+	TraceConfig
+	StateOverrides *StateOverride
+	BlockOverrides *BlockOverrides
+}
+
+// TraceCall lets you trace a given eth_call. It collects the structured logs
+// created during the execution of EVM if the given transaction was added on
+// top of the provided block and returns them as a JSON object.
+func (api *TracingAPI) TraceCall(ctx context.Context, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, config *TraceCallConfig) (interface{}, error) {
+	trace, err := api.localTraceCall(ctx, args, blockNrOrHash, config)
+	if trace != nil && err == nil {
+		return trace, nil
+	}
+	if api.config.ProxyOnError {
+		var res interface{}
+		if err := api.rpc.CallContext(ctx, &res, "debug_traceCall", args, blockNrOrHash, config); res != nil && err == nil {
+			return res, nil
+		}
+	}
+	return nil, err
+}
+
+func (api *TracingAPI) localTraceCall(ctx context.Context, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, config *TraceCallConfig) (interface{}, error) {
+	// Try to retrieve the specified block
+	var (
+		err   error
+		block *types.Block
+	)
+	if hash, ok := blockNrOrHash.Hash(); ok {
+		block, err = api.blockByHash(ctx, hash)
+	} else if number, ok := blockNrOrHash.Number(); ok {
+		if number == rpc.PendingBlockNumber {
+			// We don't have access to the miner here. For tracing 'future' transactions,
+			// it can be done with block- and state-overrides instead, which offers
+			// more flexibility and stability than trying to trace on 'pending', since
+			// the contents of 'pending' is unstable and probably not a true representation
+			// of what the next actual block is likely to contain.
+			return nil, errors.New("tracing on top of pending is not supported")
+		}
+		block, err = api.blockByNumber(ctx, number)
+	} else {
+		return nil, errors.New("invalid arguments; neither block nor hash specified")
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	stateDB, _, err := api.backend.IPLDDirectStateDBAndHeaderByNumberOrHash(ctx, rpc.BlockNumberOrHashWithHash(block.Hash(), true))
+	if err != nil {
+		return nil, err
+	}
+	vmctx := core.NewEVMBlockContext(block.Header(), api.chainContext(ctx), nil)
+	// Apply the customization rules if required.
+	if config != nil {
+		if err := config.StateOverrides.Apply(stateDB); err != nil {
+			return nil, err
+		}
+		config.BlockOverrides.Apply(&vmctx)
+	}
+	// Execute the trace
+	msg, err := args.ToMessage(api.backend.RPCGasCap(), block.BaseFee())
+	if err != nil {
+		return nil, err
+	}
+
+	var traceConfig *TraceConfig
+	if config != nil {
+		traceConfig = &config.TraceConfig
+	}
+	return api.traceTx(ctx, msg, new(tracers.Context), vmctx, stateDB, traceConfig)
+}
+
+// traceTx configures a new tracer according to the provided configuration, and
+// executes the given message in the provided environment. The return value will
+// be tracer dependent.
+func (api *TracingAPI) traceTx(ctx context.Context, message *core.Message, txctx *tracers.Context, vmctx vm.BlockContext, statedb *ipld_direct_state.StateDB, config *TraceConfig) (interface{}, error) {
+	var (
+		tracer    tracers.Tracer
+		err       error
+		timeout   = defaultTraceTimeout
+		txContext = core.NewEVMTxContext(message)
+	)
+	if config == nil {
+		config = &TraceConfig{}
+	}
+	// Default tracer is the struct logger
+	tracer = logger.NewStructLogger(config.Config)
+	if config.Tracer != nil {
+		tracer, err = tracers.DefaultDirectory.New(*config.Tracer, txctx, config.TracerConfig)
+		if err != nil {
+			return nil, err
+		}
+	}
+	vmenv := vm.NewEVM(vmctx, txContext, statedb, api.backend.ChainConfig(), vm.Config{Tracer: tracer, NoBaseFee: true})
+
+	// Define a meaningful timeout of a single transaction trace
+	if config.Timeout != nil {
+		if timeout, err = time.ParseDuration(*config.Timeout); err != nil {
+			return nil, err
+		}
+	}
+	deadlineCtx, cancel := context.WithTimeout(ctx, timeout)
+	go func() {
+		<-deadlineCtx.Done()
+		if errors.Is(deadlineCtx.Err(), context.DeadlineExceeded) {
+			tracer.Stop(errors.New("execution timeout"))
+			// Stop evm execution. Note cancellation is not necessarily immediate.
+			vmenv.Cancel()
+		}
+	}()
+	defer cancel()
+
+	// Call Prepare to clear out the statedb access list
+	statedb.SetTxContext(txctx.TxHash, txctx.TxIndex)
+	if _, err = core.ApplyMessage(vmenv, message, new(core.GasPool).AddGas(message.GasLimit)); err != nil {
+		return nil, fmt.Errorf("tracing failed: %w", err)
+	}
+	return tracer.GetResult()
+}
+
+// chainContext constructs the context reader which is used by the evm for reading
+// the necessary chain context.
+func (api *TracingAPI) chainContext(ctx context.Context) core.ChainContext {
+	return &chainContext{api: api, ctx: ctx}
+}
+
+// blockByNumber is the wrapper of the chain access function offered by the backend.
+// It will return an error if the block is not found.
+func (api *TracingAPI) blockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error) {
+	block, err := api.backend.BlockByNumber(ctx, number)
+	if err != nil {
+		return nil, err
+	}
+	if block == nil {
+		return nil, fmt.Errorf("block #%d not found", number)
+	}
+	return block, nil
+}
+
+// blockByHash is the wrapper of the chain access function offered by the backend.
+// It will return an error if the block is not found.
+func (api *TracingAPI) blockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
+	block, err := api.backend.BlockByHash(ctx, hash)
+	if err != nil {
+		return nil, err
+	}
+	if block == nil {
+		return nil, fmt.Errorf("block %s not found", hash.Hex())
+	}
+	return block, nil
+}
+
+// txTraceTask represents a single transaction trace task when an entire block
+// is being traced.
+type txTraceTask struct {
+	statedb *ipld_direct_state.StateDB // Intermediate state prepped for tracing
+	index   int                        // Transaction offset in the block
+}
+
+// txTraceResult is the result of a single transaction trace.
+type txTraceResult struct {
+	Result interface{} `json:"result,omitempty"` // Trace results produced by the tracer
+	Error  string      `json:"error,omitempty"`  // Trace failure produced by the tracer
+}
+
+var noGenesisErr = errors.New("genesis is not traceable")
+
+// TraceBlockByNumber returns the structured logs created during the execution of
+// EVM and returns them as a JSON object.
+func (api *TracingAPI) TraceBlockByNumber(ctx context.Context, number rpc.BlockNumber, config *TraceConfig) ([]*txTraceResult, error) {
+	if number == 0 {
+		return nil, noGenesisErr
+	}
+	block, err := api.blockByNumber(ctx, number)
+	if err != nil {
+		return nil, err
+	}
+	trace, err := api.traceBlock(ctx, block, config)
+	if trace != nil && err == nil {
+		return trace, nil
+	}
+	if api.config.ProxyOnError {
+		var res []*txTraceResult
+		if err := api.rpc.CallContext(ctx, &res, "debug_traceBlockByNumber", number, config); res != nil && err == nil {
+			return res, nil
+		}
+	}
+	return nil, err
+}
+
+// TraceBlockByHash returns the structured logs created during the execution of
+// EVM and returns them as a JSON object.
+func (api *TracingAPI) TraceBlockByHash(ctx context.Context, hash common.Hash, config *TraceConfig) ([]*txTraceResult, error) {
+	block, err := api.blockByHash(ctx, hash)
+	if err != nil {
+		return nil, err
+	}
+	if block.NumberU64() == 0 {
+		return nil, noGenesisErr
+	}
+	trace, err := api.traceBlock(ctx, block, config)
+	if trace != nil && err == nil {
+		return trace, nil
+	}
+	if api.config.ProxyOnError {
+		var res []*txTraceResult
+		if err := api.rpc.CallContext(ctx, &res, "debug_traceBlockByHash", hash, config); res != nil && err == nil {
+			return res, nil
+		}
+	}
+	return nil, err
+}
+
+// TraceBlock returns the structured logs created during the execution of EVM
+// and returns them as a JSON object.
+func (api *TracingAPI) TraceBlock(ctx context.Context, blob hexutil.Bytes, config *TraceConfig) ([]*txTraceResult, error) {
+	trace, err := api.localTraceBlock(ctx, blob, config)
+	if trace != nil && err == nil {
+		return trace, nil
+	}
+	if api.config.ProxyOnError {
+		var res []*txTraceResult
+		if err := api.rpc.CallContext(ctx, &res, "debug_traceBlock", blob, config); res != nil && err == nil {
+			return res, nil
+		}
+	}
+	return nil, err
+}
+
+func (api *TracingAPI) localTraceBlock(ctx context.Context, blob hexutil.Bytes, config *TraceConfig) ([]*txTraceResult, error) {
+	block := new(types.Block)
+	if err := rlp.Decode(bytes.NewReader(blob), block); err != nil {
+		return nil, fmt.Errorf("could not decode block: %v", err)
+	}
+	return api.traceBlock(ctx, block, config)
+}
+
+// traceBlock configures a new tracer according to the provided configuration, and
+// executes all the transactions contained within. The return value will be one item
+// per transaction, dependent on the requested tracer.
+func (api *TracingAPI) traceBlock(ctx context.Context, block *types.Block, config *TraceConfig) ([]*txTraceResult, error) {
+	if block.NumberU64() == 0 {
+		return nil, errors.New("genesis is not traceable")
+	}
+	stateDB, _, err := api.backend.IPLDDirectStateDBAndHeaderByNumberOrHash(ctx, rpc.BlockNumberOrHashWithHash(block.ParentHash(), true))
+	if err != nil {
+		return nil, err
+	}
+
+	// JS tracers have high overhead. In this case run a parallel
+	// process that generates states in one thread and traces txes
+	// in separate worker threads.
+	if config != nil && config.Tracer != nil && *config.Tracer != "" {
+		if isJS := tracers.DefaultDirectory.IsJS(*config.Tracer); isJS {
+			return api.traceBlockParallel(ctx, block, stateDB, config)
+		}
+	}
+	// Native tracers have low overhead
+	var (
+		txs       = block.Transactions()
+		blockHash = block.Hash()
+		is158     = api.backend.ChainConfig().IsEIP158(block.Number())
+		blockCtx  = core.NewEVMBlockContext(block.Header(), api.chainContext(ctx), nil)
+		signer    = types.MakeSigner(api.backend.ChainConfig(), block.Number())
+		results   = make([]*txTraceResult, len(txs))
+	)
+	for i, tx := range txs {
+		// Generate the next state snapshot fast without tracing
+		msg, _ := core.TransactionToMessage(tx, signer, block.BaseFee())
+		txctx := &tracers.Context{
+			BlockHash:   blockHash,
+			BlockNumber: block.Number(),
+			TxIndex:     i,
+			TxHash:      tx.Hash(),
+		}
+		res, err := api.traceTx(ctx, msg, txctx, blockCtx, stateDB, config)
+		if err != nil {
+			return nil, err
+		}
+		results[i] = &txTraceResult{Result: res}
+		// Finalize the state so any modifications are written to the trie
+		// Only delete empty objects if EIP158/161 (a.k.a Spurious Dragon) is in effect
+		stateDB.Finalise(is158)
+	}
+	return results, nil
+}
+
+// traceBlockParallel is for tracers that have a high overhead (read JS tracers). One thread
+// runs along and executes txes without tracing enabled to generate their prestate.
+// Worker threads take the tasks and the prestate and trace them.
+func (api *TracingAPI) traceBlockParallel(ctx context.Context, block *types.Block, statedb *ipld_direct_state.StateDB, config *TraceConfig) ([]*txTraceResult, error) {
+	// Execute all the transaction contained within the block concurrently
+	var (
+		txs       = block.Transactions()
+		blockHash = block.Hash()
+		blockCtx  = core.NewEVMBlockContext(block.Header(), api.chainContext(ctx), nil)
+		signer    = types.MakeSigner(api.backend.ChainConfig(), block.Number())
+		results   = make([]*txTraceResult, len(txs))
+		pend      sync.WaitGroup
+	)
+	threads := runtime.NumCPU()
+	if threads > len(txs) {
+		threads = len(txs)
+	}
+	jobs := make(chan *txTraceTask, threads)
+	for th := 0; th < threads; th++ {
+		pend.Add(1)
+		go func() {
+			defer pend.Done()
+			// Fetch and execute the next transaction trace tasks
+			for task := range jobs {
+				msg, _ := core.TransactionToMessage(txs[task.index], signer, block.BaseFee())
+				txctx := &tracers.Context{
+					BlockHash:   blockHash,
+					BlockNumber: block.Number(),
+					TxIndex:     task.index,
+					TxHash:      txs[task.index].Hash(),
+				}
+				res, err := api.traceTx(ctx, msg, txctx, blockCtx, task.statedb, config)
+				if err != nil {
+					results[task.index] = &txTraceResult{Error: err.Error()}
+					continue
+				}
+				results[task.index] = &txTraceResult{Result: res}
+			}
+		}()
+	}
+
+	// Feed the transactions into the tracers and return
+	var failed error
+txloop:
+	for i, tx := range txs {
+		// Send the trace task over for execution
+		task := &txTraceTask{statedb: statedb.Copy(), index: i}
+		select {
+		case <-ctx.Done():
+			failed = ctx.Err()
+			break txloop
+		case jobs <- task:
+		}
+
+		// Generate the next state snapshot fast without tracing
+		msg, _ := core.TransactionToMessage(tx, signer, block.BaseFee())
+		statedb.SetTxContext(tx.Hash(), i)
+		vmenv := vm.NewEVM(blockCtx, core.NewEVMTxContext(msg), statedb, api.backend.ChainConfig(), vm.Config{})
+		if _, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.GasLimit)); err != nil {
+			failed = err
+			break txloop
+		}
+		// Finalize the state so any modifications are written to the trie
+		// Only delete empty objects if EIP158/161 (a.k.a Spurious Dragon) is in effect
+		statedb.Finalise(vmenv.ChainConfig().IsEIP158(block.Number()))
+	}
+
+	close(jobs)
+	pend.Wait()
+
+	// If execution failed in between, abort
+	if failed != nil {
+		return nil, failed
+	}
+	return results, nil
+}
+
+// blockByNumberAndHash is the wrapper of the chain access function offered by
+// the backend. It will return an error if the block is not found.
+//
+// Note this function is friendly for the light client which can only retrieve the
+// historical(before the CHT) header/block by number.
+func (api *TracingAPI) blockByNumberAndHash(ctx context.Context, number rpc.BlockNumber, hash common.Hash) (*types.Block, error) {
+	block, err := api.blockByNumber(ctx, number)
+	if err != nil {
+		return nil, err
+	}
+	if block.Hash() == hash {
+		return block, nil
+	}
+	return api.blockByHash(ctx, hash)
+}
+
+type chainContext struct {
+	api *TracingAPI
+	ctx context.Context
+}
+
+func (context *chainContext) Engine() consensus.Engine {
+	return context.api.backend.Engine()
+}
+
+func (context *chainContext) GetHeader(hash common.Hash, number uint64) *types.Header {
+	header, err := context.api.backend.HeaderByNumber(context.ctx, rpc.BlockNumber(number))
+	if err != nil {
+		return nil
+	}
+	if header.Hash() == hash {
+		return header
+	}
+	header, err = context.api.backend.HeaderByHash(context.ctx, hash)
+	if err != nil {
+		return nil
+	}
+	return header
+}

pkg/eth/transaction_arguments.go

@@ -1,9 +1,15 @@
 package eth
 
 import (
+	"errors"
+	"math/big"
+
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
+	"github.com/ethereum/go-ethereum/common/math"
+	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/sirupsen/logrus"
 )
 
 // TransactionArgs represents the arguments to construct a new transaction
@@ -47,3 +53,85 @@ func (args *TransactionArgs) data() []byte {
 	}
 	return nil
 }
+
+// ToMessage converts the transaction arguments to the Message type used by the
+// core evm. This method is used in calls and traces that do not require a real
+// live transaction.
+func (args *TransactionArgs) ToMessage(globalGasCap uint64, baseFee *big.Int) (*core.Message, error) {
+	// Reject invalid combinations of pre- and post-1559 fee styles
+	if args.GasPrice != nil && (args.MaxFeePerGas != nil || args.MaxPriorityFeePerGas != nil) {
+		return nil, errors.New("both gasPrice and (maxFeePerGas or maxPriorityFeePerGas) specified")
+	}
+	// Set sender address or use zero address if none specified.
+	addr := args.from()
+
+	// Set default gas & gas price if none were set
+	gas := globalGasCap
+	if gas == 0 {
+		gas = uint64(math.MaxUint64 / 2)
+	}
+	if args.Gas != nil {
+		gas = uint64(*args.Gas)
+	}
+	if globalGasCap != 0 && globalGasCap < gas {
+		logrus.Warn("Caller gas above allowance, capping", "requested", gas, "cap", globalGasCap)
+		gas = globalGasCap
+	}
+	var (
+		gasPrice  *big.Int
+		gasFeeCap *big.Int
+		gasTipCap *big.Int
+	)
+	if baseFee == nil {
+		// If there's no basefee, then it must be a non-1559 execution
+		gasPrice = new(big.Int)
+		if args.GasPrice != nil {
+			gasPrice = args.GasPrice.ToInt()
+		}
+		gasFeeCap, gasTipCap = gasPrice, gasPrice
+	} else {
+		// A basefee is provided, necessitating 1559-type execution
+		if args.GasPrice != nil {
+			// User specified the legacy gas field, convert to 1559 gas typing
+			gasPrice = args.GasPrice.ToInt()
+			gasFeeCap, gasTipCap = gasPrice, gasPrice
+		} else {
+			// User specified 1559 gas fields (or none), use those
+			gasFeeCap = new(big.Int)
+			if args.MaxFeePerGas != nil {
+				gasFeeCap = args.MaxFeePerGas.ToInt()
+			}
+			gasTipCap = new(big.Int)
+			if args.MaxPriorityFeePerGas != nil {
+				gasTipCap = args.MaxPriorityFeePerGas.ToInt()
+			}
+			// Backfill the legacy gasPrice for EVM execution, unless we're all zeroes
+			gasPrice = new(big.Int)
+			if gasFeeCap.BitLen() > 0 || gasTipCap.BitLen() > 0 {
+				gasPrice = math.BigMin(new(big.Int).Add(gasTipCap, baseFee), gasFeeCap)
+			}
+		}
+	}
+	value := new(big.Int)
+	if args.Value != nil {
+		value = args.Value.ToInt()
+	}
+	data := args.data()
+	var accessList types.AccessList
+	if args.AccessList != nil {
+		accessList = *args.AccessList
+	}
+	msg := &core.Message{
+		From:              addr,
+		To:                args.To,
+		Value:             value,
+		GasLimit:          gas,
+		GasPrice:          gasPrice,
+		GasFeeCap:         gasFeeCap,
+		GasTipCap:         gasTipCap,
+		Data:              data,
+		AccessList:        accessList,
+		SkipAccountChecks: true,
+	}
+	return msg, nil
+}

pkg/serve/config.go

@@ -110,6 +110,8 @@ type Config struct {
 	ProxyOnError        bool
 	GetLogsBlockLimit   int64
 	NodeNetworkID       string
+	TracingEnabled      bool
+	TracingPublic       bool
 
 	// Cache configuration.
 	GroupCache *ethServerShared.GroupCacheConfig
@@ -154,6 +156,8 @@ func NewConfig() (*Config, error) {
 	c.ForwardGetStorageAt = viper.GetBool("ethereum.forwardGetStorageAt")
 	c.ProxyOnError = viper.GetBool("ethereum.proxyOnError")
 	c.EthHttpEndpoint = ethHTTPEndpoint
+	c.TracingEnabled = viper.GetBool("ethereum.tracingEnabled")
+	c.TracingPublic = viper.GetBool("ethereum.tracingPublic")
 
 	if viper.IsSet("ethereum.getLogsBlockLimit") {
 		c.GetLogsBlockLimit = viper.GetInt64("ethereum.getLogsBlockLimit")

pkg/serve/service.go

@@ -78,6 +78,10 @@ type Service struct {
 	proxyOnError bool
 	// eth node network id
 	nodeNetworkId string
+	// tracing enabled
+	tracingEnabled bool
+	// tracing public
+	tracingPublic bool
 }
 
 // NewServer creates a new Server using an underlying Service struct
@@ -93,6 +97,8 @@ func NewServer(settings *Config) (Server, error) {
 	sap.getLogsBlockLimit = settings.GetLogsBlockLimit
 	sap.proxyOnError = settings.ProxyOnError
 	sap.nodeNetworkId = settings.NodeNetworkID
+	sap.tracingEnabled = settings.TracingEnabled
+	sap.tracingPublic = settings.TracingPublic
 	var err error
 	sap.backend, err = eth.NewEthBackend(sap.db, &eth.Config{
 		ChainConfig:      settings.ChainConfig,
@@ -138,9 +144,10 @@ func (sap *Service) APIs() []rpc.API {
 		log.Fatalf("unable to create public eth api: %v", err)
 	}
 
+	// this uses stubbed StateAtBlock and StateAtTransaction methods and so does not support debug_traceBlock and debug_traceCall
 	debugTracerAPI := tracers.APIs(&debug.Backend{Backend: *sap.backend})[0]
 
-	return append(apis,
+	apis = append(apis,
 		rpc.API{
 			Namespace: eth.APIName,
 			Version:   eth.APIVersion,
@@ -149,6 +156,22 @@ func (sap *Service) APIs() []rpc.API {
 		},
 		debugTracerAPI,
 	)
+
+	if sap.tracingEnabled {
+		tracingAPI, err := eth.NewTracingAPI(sap.backend, sap.client, conf)
+		if err != nil {
+			log.Fatalf("unable to create tracing api: %v", err)
+		}
+		apis = append(apis, rpc.API{
+			// Uses same namespace as stubbed debug API above
+			// Need to test if this will properly overlay and form a union with the existing methods supported by that
+			// Or if only one is exposed
+			Namespace: "debug",
+			Service:   tracingAPI,
+			Public:    sap.tracingPublic,
+		})
+	}
+	return apis
 }
 
 // Serve listens for incoming converter data off the screenAndServePayload from the Sync process

test/compose-db.yml

@@ -5,7 +5,7 @@ services:
     restart: on-failure
     depends_on:
       - ipld-eth-db
-    image: git.vdb.to/cerc-io/ipld-eth-db/ipld-eth-db:v5.0.5-alpha
+    image: git.vdb.to/cerc-io/ipld-eth-db/ipld-eth-db:v5.2.1-alpha
     environment:
       DATABASE_USER: "vdbm"
       DATABASE_NAME: "cerc_testing"

test/stack-refs.txt

@@ -1,2 +1,2 @@
-github.com/cerc-io/ipld-eth-db v5.0.5-alpha
+git.vdb.to/cerc-io/ipld-eth-db v5.2.1-alpha
 git.vdb.to/cerc-io/plugeth-statediff v0.1.1