rpc: debug_traceTransaction fails for succesful tx (#720)

* Problem: traceTransaction fails for succesful tx

Solution:
- Change the context to the begining of the block, rather than the end
  of it, while override block context to correct one

pass predecessors

pass current block information to grpc query

* changelog

* fix build

* fix lint

* refactor traceBlock

* update protobuf

* fix Predecessors

* traceBlock refactor

* refactor traceBlock response

* Update proto/ethermint/evm/v1/tx.proto

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* Update proto/ethermint/evm/v1/query.proto

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* Update proto/ethermint/evm/v1/query.proto

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* Update proto/ethermint/evm/v1/query.proto

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* Update proto/ethermint/evm/v1/query.proto

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* Update proto/ethermint/evm/v1/query.proto

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* check tx index is not out of bound

* fix build

* Update rpc/ethereum/namespaces/debug/api.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* Update rpc/ethereum/namespaces/debug/api.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* Update rpc/ethereum/namespaces/debug/api.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* Update rpc/ethereum/namespaces/debug/api.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* remove prealloc

* add traceBlock test

* Update x/evm/keeper/grpc_query.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* use bytes2Hex

* fix error message

* add comment

* Apply suggestions from code review

Co-authored-by: Freddy Caceres <freddy.caceres@crypto.com>
Co-authored-by: crypto-facs <84574577+crypto-facs@users.noreply.github.com>
Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

CHANGELOG.md

@@ -57,6 +57,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (evm) [tharsis#660](https://github.com/tharsis/ethermint/pull/660) Fix `nil` pointer panic in `ApplyNativeMessage`.
 * (evm, test) [tharsis#649](https://github.com/tharsis/ethermint/pull/649) Test DynamicFeeTx.
 * (evm) [tharsis#702](https://github.com/tharsis/ethermint/pull/702) Fix panic in web3 RPC handlers 
+* (rpc) [tharsis#720](https://github.com/tharsis/ethermint/pull/720) Fix `debug_traceTransaction` failure
 
 ### Improvements
 

docs/api/proto-docs.md

@@ -47,6 +47,8 @@
     - [QueryParamsResponse](#ethermint.evm.v1.QueryParamsResponse)
     - [QueryStorageRequest](#ethermint.evm.v1.QueryStorageRequest)
     - [QueryStorageResponse](#ethermint.evm.v1.QueryStorageResponse)
+    - [QueryTraceBlockRequest](#ethermint.evm.v1.QueryTraceBlockRequest)
+    - [QueryTraceBlockResponse](#ethermint.evm.v1.QueryTraceBlockResponse)
     - [QueryTraceTxRequest](#ethermint.evm.v1.QueryTraceTxRequest)
     - [QueryTraceTxResponse](#ethermint.evm.v1.QueryTraceTxResponse)
     - [QueryTxLogsRequest](#ethermint.evm.v1.QueryTxLogsRequest)
@@ -508,7 +510,7 @@ Msg defines the evm Msg service.
 
 | Method Name | Request Type | Response Type | Description | HTTP Verb | Endpoint |
 | ----------- | ------------ | ------------- | ------------| ------- | -------- |
-| `EthereumTx` | [MsgEthereumTx](#ethermint.evm.v1.MsgEthereumTx) | [MsgEthereumTxResponse](#ethermint.evm.v1.MsgEthereumTxResponse) | EthereumTx defines a method submitting Ethereum transactions. | |
+| `EthereumTx` | [MsgEthereumTx](#ethermint.evm.v1.MsgEthereumTx) | [MsgEthereumTxResponse](#ethermint.evm.v1.MsgEthereumTxResponse) | EthereumTx defines a method submitting Ethereum transactions. | POST|/ethermint/evm/v1/ethereum_tx|
 
  <!-- end services -->
 
@@ -736,6 +738,40 @@ method.
 
 
 
+<a name="ethermint.evm.v1.QueryTraceBlockRequest"></a>
+
+### QueryTraceBlockRequest
+QueryTraceBlockRequest defines TraceTx request
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `txs` | [MsgEthereumTx](#ethermint.evm.v1.MsgEthereumTx) | repeated | txs messages in the block |
+| `trace_config` | [TraceConfig](#ethermint.evm.v1.TraceConfig) |  | TraceConfig holds extra parameters to trace functions. |
+| `block_number` | [int64](#int64) |  | block number |
+| `block_hash` | [string](#string) |  | block hex hash |
+| `block_time` | [google.protobuf.Timestamp](#google.protobuf.Timestamp) |  | block time |
+
+
+
+
+
+
+<a name="ethermint.evm.v1.QueryTraceBlockResponse"></a>
+
+### QueryTraceBlockResponse
+QueryTraceBlockResponse defines TraceBlock response
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `data` | [bytes](#bytes) |  |  |
+
+
+
+
+
+
 <a name="ethermint.evm.v1.QueryTraceTxRequest"></a>
 
 ### QueryTraceTxRequest
@@ -747,6 +783,10 @@ QueryTraceTxRequest defines TraceTx request
 | `msg` | [MsgEthereumTx](#ethermint.evm.v1.MsgEthereumTx) |  | msgEthereumTx for the requested transaction |
 | `tx_index` | [uint64](#uint64) |  | transaction index |
 | `trace_config` | [TraceConfig](#ethermint.evm.v1.TraceConfig) |  | TraceConfig holds extra parameters to trace functions. |
+| `predecessors` | [MsgEthereumTx](#ethermint.evm.v1.MsgEthereumTx) | repeated | the predecessor transactions included in the same block need to be replayed first to get correct context for tracing. |
+| `block_number` | [int64](#int64) |  | block number of requested transaction |
+| `block_hash` | [string](#string) |  | block hex hash of requested transaction |
+| `block_time` | [google.protobuf.Timestamp](#google.protobuf.Timestamp) |  | block time of requested transaction |
 
 
 
@@ -857,6 +897,7 @@ Query defines the gRPC querier service.
 | `EthCall` | [EthCallRequest](#ethermint.evm.v1.EthCallRequest) | [MsgEthereumTxResponse](#ethermint.evm.v1.MsgEthereumTxResponse) | EthCall implements the `eth_call` rpc api | GET|/ethermint/evm/v1/eth_call|
 | `EstimateGas` | [EthCallRequest](#ethermint.evm.v1.EthCallRequest) | [EstimateGasResponse](#ethermint.evm.v1.EstimateGasResponse) | EstimateGas implements the `eth_estimateGas` rpc api | GET|/ethermint/evm/v1/estimate_gas|
 | `TraceTx` | [QueryTraceTxRequest](#ethermint.evm.v1.QueryTraceTxRequest) | [QueryTraceTxResponse](#ethermint.evm.v1.QueryTraceTxResponse) | TraceTx implements the `debug_traceTransaction` rpc api | GET|/ethermint/evm/v1/trace_tx|
+| `TraceBlock` | [QueryTraceBlockRequest](#ethermint.evm.v1.QueryTraceBlockRequest) | [QueryTraceBlockResponse](#ethermint.evm.v1.QueryTraceBlockResponse) | TraceBlock implements the `debug_traceBlockByNumber` and `debug_traceBlockByHash` rpc api | GET|/ethermint/evm/v1/trace_block|
 
  <!-- end services -->
 

go.mod

@@ -8,6 +8,7 @@ require (
 	github.com/cosmos/cosmos-sdk v0.44.3
 	github.com/cosmos/go-bip39 v1.0.0
 	github.com/cosmos/ibc-go/v2 v2.0.0-rc0
+	github.com/davecgh/go-spew v1.1.1
 	github.com/ethereum/go-ethereum v1.10.11
 	github.com/gogo/protobuf v1.3.3
 	github.com/golang/protobuf v1.5.2
@@ -34,14 +35,13 @@ require (
 	github.com/tendermint/tm-db v0.6.4
 	github.com/tyler-smith/go-bip39 v1.1.0
 	go.etcd.io/bbolt v1.3.6 // indirect
-	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect
+	golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa // indirect
-	google.golang.org/genproto v0.0.0-20211021150943-2b146023228c
+	google.golang.org/genproto v0.0.0-20211104193956-4c6863e31247
 	google.golang.org/grpc v1.41.0
+	google.golang.org/protobuf v1.27.1
 	gopkg.in/yaml.v2 v2.4.0
 )
 
-require github.com/davecgh/go-spew v1.1.1
-
 require (
 	filippo.io/edwards25519 v1.0.0-beta.2 // indirect
 	github.com/99designs/keyring v1.1.6 // indirect
@@ -138,7 +138,6 @@ require (
 	golang.org/x/sys v0.0.0-20211025112917-711f33c9992c // indirect
 	golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 // indirect
 	golang.org/x/text v0.3.7 // indirect
-	google.golang.org/protobuf v1.27.1 // indirect
 	gopkg.in/ini.v1 v1.63.2 // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
 	gopkg.in/olebedev/go-duktape.v3 v3.0.0-20200619000410-60c24ae608a6 // indirect

go.sum

@@ -1293,8 +1293,8 @@ golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWP
 golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
 golang.org/x/crypto v0.0.0-20210817164053-32db794688a5/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 h1:7I4JAnoQBe7ZtJcBaYHi5UtiO8tQHbUSXxL+pnGRANg=
+golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa h1:idItI2DDfCokpg0N51B2VtiLdJ4vAuXC9fnCb2gACo4=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -1759,8 +1759,8 @@ google.golang.org/genproto v0.0.0-20210805201207-89edb61ffb67/go.mod h1:ob2IJxKr
 google.golang.org/genproto v0.0.0-20210813162853-db860fec028c/go.mod h1:cFeNkxwySK631ADgubI+/XFU/xp8FD5KIVV4rj8UC5w=
 google.golang.org/genproto v0.0.0-20210821163610-241b8fcbd6c8/go.mod h1:eFjDcFEctNawg4eG61bRv87N7iHBWyVhJu7u1kqDUXY=
 google.golang.org/genproto v0.0.0-20210828152312-66f60bf46e71/go.mod h1:eFjDcFEctNawg4eG61bRv87N7iHBWyVhJu7u1kqDUXY=
-google.golang.org/genproto v0.0.0-20211021150943-2b146023228c h1:FqrtZMB5Wr+/RecOM3uPJNPfWR8Upb5hAPnt7PU6i4k=
+google.golang.org/genproto v0.0.0-20211104193956-4c6863e31247 h1:ZONpjmFT5e+I/0/xE3XXbG5OIvX2hRYzol04MhKBl2E=
-google.golang.org/genproto v0.0.0-20211021150943-2b146023228c/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
+google.golang.org/genproto v0.0.0-20211104193956-4c6863e31247/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
 google.golang.org/grpc v1.33.2 h1:EQyQC3sa8M+p6Ulc8yy9SWSS2GVwyRc83gAbG8lrl4o=
 google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=

proto/ethermint/evm/v1/query.proto

@@ -6,6 +6,7 @@ import "cosmos/base/query/v1beta1/pagination.proto";
 import "google/api/annotations.proto";
 import "ethermint/evm/v1/evm.proto";
 import "ethermint/evm/v1/tx.proto";
+import "google/protobuf/timestamp.proto";
 
 option go_package = "github.com/tharsis/ethermint/x/evm/types";
 
@@ -65,6 +66,11 @@ service Query {
   rpc TraceTx(QueryTraceTxRequest) returns (QueryTraceTxResponse) {
     option (google.api.http).get = "/ethermint/evm/v1/trace_tx";
   }
+
+  // TraceBlock implements the `debug_traceBlockByNumber` and `debug_traceBlockByHash` rpc api
+  rpc TraceBlock(QueryTraceBlockRequest) returns (QueryTraceBlockResponse) {
+    option (google.api.http).get = "/ethermint/evm/v1/trace_block";
+  }
 }
 
 // QueryAccountRequest is the request type for the Query/Account RPC method.
@@ -228,6 +234,15 @@ message QueryTraceTxRequest {
   uint64 tx_index = 2;
   // TraceConfig holds extra parameters to trace functions.
   TraceConfig trace_config = 3;
+  // the predecessor transactions included in the same block
+  // need to be replayed first to get correct context for tracing.
+  repeated MsgEthereumTx predecessors = 4;
+  // block number of requested transaction
+  int64 block_number = 5;
+  // block hex hash of requested transaction
+  string block_hash = 6;
+  // block time of requested transaction
+  google.protobuf.Timestamp block_time = 7 [(gogoproto.nullable) = false, (gogoproto.stdtime) = true];
 }
 
 // QueryTraceTxResponse defines TraceTx response
@@ -235,3 +250,23 @@ message QueryTraceTxResponse {
   // response serialized in bytes
   bytes data = 1;
 }
+
+// QueryTraceBlockRequest defines TraceTx request
+message QueryTraceBlockRequest {
+  // txs messages in the block
+  repeated MsgEthereumTx txs = 1;
+  // TraceConfig holds extra parameters to trace functions.
+  TraceConfig trace_config = 3;
+  // block number
+  int64 block_number = 5;
+  // block hex hash
+  string block_hash = 6;
+  // block time
+  google.protobuf.Timestamp block_time = 7 [(gogoproto.nullable) = false, (gogoproto.stdtime) = true];
+}
+
+// QueryTraceBlockResponse defines TraceBlock response
+message QueryTraceBlockResponse {
+  bytes data = 1;
+}
+

proto/ethermint/evm/v1/tx.proto

@@ -13,7 +13,7 @@ option go_package = "github.com/tharsis/ethermint/x/evm/types";
 service Msg {
   // EthereumTx defines a method submitting Ethereum transactions.
   rpc EthereumTx(MsgEthereumTx) returns (MsgEthereumTxResponse) {
-    option (google.api.http).get = "/ethermint/evm/v1/ethereum_tx";
+    option (google.api.http).post = "/ethermint/evm/v1/ethereum_tx";
   };
 }
 

rpc/ethereum/namespaces/debug/api.go

@@ -14,7 +14,7 @@ import (
 	"time"
 
 	"github.com/davecgh/go-spew/spew"
-	"github.com/tendermint/tendermint/types"
+	tmrpctypes "github.com/tendermint/tendermint/rpc/core/types"
 
 	evmtypes "github.com/tharsis/ethermint/x/evm/types"
 
@@ -81,6 +81,35 @@ func (a *API) TraceTransaction(hash common.Hash, config *evmtypes.TraceConfig) (
 		return nil, errors.New("genesis is not traceable")
 	}
 
+	blk, err := a.backend.GetTendermintBlockByNumber(rpctypes.BlockNumber(transaction.Height))
+	if err != nil {
+		a.logger.Debug("block not found", "height", transaction.Height)
+		return nil, err
+	}
+
+	// check tx index is not out of bound
+	if uint32(len(blk.Block.Txs)) < transaction.Index {
+		a.logger.Debug("tx index out of bounds", "index", transaction.Index, "hash", hash.String(), "height", blk.Block.Height)
+		return nil, fmt.Errorf("transaction not included in block %v", blk.Block.Height)
+	}
+
+	// nolint: prealloc
+	var predecessors []*evmtypes.MsgEthereumTx
+	for _, txBz := range blk.Block.Txs[:transaction.Index] {
+		tx, err := a.clientCtx.TxConfig.TxDecoder()(txBz)
+		if err != nil {
+			a.logger.Debug("failed to decode transaction in block", "height", blk.Block.Height, "error", err.Error())
+			continue
+		}
+		msg := tx.GetMsgs()[0]
+		ethMsg, ok := msg.(*evmtypes.MsgEthereumTx)
+		if !ok {
+			continue
+		}
+
+		predecessors = append(predecessors, ethMsg)
+	}
+
 	tx, err := a.clientCtx.TxConfig.TxDecoder()(transaction.Tx)
 	if err != nil {
 		a.logger.Debug("tx not found", "hash", hash)
@@ -94,15 +123,25 @@ func (a *API) TraceTransaction(hash common.Hash, config *evmtypes.TraceConfig) (
 	}
 
 	traceTxRequest := evmtypes.QueryTraceTxRequest{
-		Msg:     ethMessage,
+		Msg:          ethMessage,
-		TxIndex: uint64(transaction.Index),
+		TxIndex:      uint64(transaction.Index),
+		Predecessors: predecessors,
+		BlockNumber:  blk.Block.Height,
+		BlockTime:    blk.Block.Time,
+		BlockHash:    common.Bytes2Hex(blk.BlockID.Hash),
 	}
 
 	if config != nil {
 		traceTxRequest.TraceConfig = config
 	}
 
-	traceResult, err := a.queryClient.TraceTx(rpctypes.ContextWithHeight(transaction.Height), &traceTxRequest)
+	// minus one to get the context of block beginning
+	contextHeight := transaction.Height - 1
+	if contextHeight < 1 {
+		// 0 is a special value in `ContextWithHeight`
+		contextHeight = 1
+	}
+	traceResult, err := a.queryClient.TraceTx(rpctypes.ContextWithHeight(contextHeight), &traceTxRequest)
 	if err != nil {
 		return nil, err
 	}
@@ -131,13 +170,14 @@ func (a *API) TraceBlockByNumber(height rpctypes.BlockNumber, config *evmtypes.T
 		return nil, err
 	}
 
-	return a.traceBlock(height, config, resBlock.Block.Txs)
+	return a.traceBlock(height, config, resBlock)
 }
 
 // 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 (a API) traceBlock(height rpctypes.BlockNumber, config *evmtypes.TraceConfig, txs types.Txs) ([]*evmtypes.TxTraceResult, error) {
+func (a *API) traceBlock(height rpctypes.BlockNumber, config *evmtypes.TraceConfig, block *tmrpctypes.ResultBlock) ([]*evmtypes.TxTraceResult, error) {
+	txs := block.Block.Txs
 	txsLength := len(txs)
 
 	if txsLength == 0 {
@@ -145,73 +185,56 @@ func (a API) traceBlock(height rpctypes.BlockNumber, config *evmtypes.TraceConfi
 		return []*evmtypes.TxTraceResult{}, nil
 	}
 
-	var (
+	txDecoder := a.clientCtx.TxConfig.TxDecoder()
-		results = make([]*evmtypes.TxTraceResult, txsLength)
-		wg      = new(sync.WaitGroup)
-		jobs    = make(chan *evmtypes.TxTraceTask, txsLength)
-	)
 
-	threads := runtime.NumCPU()
+	// nolint: prealloc
-	if threads > txsLength {
+	var txsMessages []*evmtypes.MsgEthereumTx
-		threads = txsLength
+	for i, tx := range txs {
+		decodedTx, err := txDecoder(tx)
+		if err != nil {
+			a.logger.Error("failed to decode transaction", "hash", txs[i].Hash(), "error", err.Error())
+			continue
+		}
+
+		messages := decodedTx.GetMsgs()
+		if len(messages) == 0 {
+			continue
+		}
+		ethMessage, ok := messages[0].(*evmtypes.MsgEthereumTx)
+		if !ok {
+			// Just considers Ethereum transactions
+			continue
+		}
+		txsMessages = append(txsMessages, ethMessage)
 	}
 
-	ctxWithHeight := rpctypes.ContextWithHeight(int64(height))
+	// minus one to get the context at the beginning of the block
+	contextHeight := height - 1
+	if contextHeight < 1 {
+		// 0 is a special value for `ContextWithHeight`.
+		contextHeight = 1
+	}
+	ctxWithHeight := rpctypes.ContextWithHeight(int64(contextHeight))
 
-	wg.Add(threads)
+	traceBlockRequest := &evmtypes.QueryTraceBlockRequest{
-	for th := 0; th < threads; th++ {
+		Txs:         txsMessages,
-		go func() {
+		TraceConfig: config,
-			defer wg.Done()
+		BlockNumber: block.Block.Height,
-			txDecoder := a.clientCtx.TxConfig.TxDecoder()
+		BlockTime:   block.Block.Time,
-			// Fetch and execute the next transaction trace tasks
+		BlockHash:   common.Bytes2Hex(block.BlockID.Hash),
-			for task := range jobs {
-				tx, err := txDecoder(txs[task.Index])
-				if err != nil {
-					a.logger.Error("failed to decode transaction", "hash", txs[task.Index].Hash(), "error", err.Error())
-					continue
-				}
-
-				messages := tx.GetMsgs()
-				if len(messages) == 0 {
-					continue
-				}
-				ethMessage, ok := messages[0].(*evmtypes.MsgEthereumTx)
-				if !ok {
-					// Just considers Ethereum transactions
-					continue
-				}
-
-				traceTxRequest := &evmtypes.QueryTraceTxRequest{
-					Msg:         ethMessage,
-					TxIndex:     uint64(task.Index),
-					TraceConfig: config,
-				}
-
-				res, err := a.queryClient.TraceTx(ctxWithHeight, traceTxRequest)
-				if err != nil {
-					results[task.Index] = &evmtypes.TxTraceResult{Error: err.Error()}
-					continue
-				}
-				// Response format is unknown due to custom tracer config param
-				// More information can be found here https://geth.ethereum.org/docs/dapp/tracing-filtered
-				var decodedResult interface{}
-				if err := json.Unmarshal(res.Data, &decodedResult); err != nil {
-					results[task.Index] = &evmtypes.TxTraceResult{Error: err.Error()}
-					continue
-				}
-				results[task.Index] = &evmtypes.TxTraceResult{Result: decodedResult}
-			}
-		}()
 	}
 
-	for i := range txs {
+	res, err := a.queryClient.TraceBlock(ctxWithHeight, traceBlockRequest)
-		jobs <- &evmtypes.TxTraceTask{Index: i}
+	if err != nil {
+		return nil, err
 	}
 
-	close(jobs)
+	decodedResults := make([]*evmtypes.TxTraceResult, txsLength)
-	wg.Wait()
+	if err := json.Unmarshal(res.Data, &decodedResults); err != nil {
+		return nil, err
+	}
 
-	return results, nil
+	return decodedResults, nil
 }
 
 // BlockProfile turns on goroutine profiling for nsec seconds and writes profile data to

x/evm/keeper/grpc_query.go

@@ -360,16 +360,34 @@ func (k Keeper) TraceTx(c context.Context, req *types.QueryTraceTxRequest) (*typ
 	}
 
 	ctx := sdk.UnwrapSDKContext(c)
+	ctx = ctx.WithBlockHeight(req.BlockNumber)
+	ctx = ctx.WithBlockTime(req.BlockTime)
+	ctx = ctx.WithHeaderHash(common.Hex2Bytes(req.BlockHash))
 	k.WithContext(ctx)
 
 	params := k.GetParams(ctx)
 	ethCfg := params.ChainConfig.EthereumConfig(k.eip155ChainID)
 	signer := ethtypes.MakeSigner(ethCfg, big.NewInt(ctx.BlockHeight()))
-	tx := req.Msg.AsTransaction()
 	baseFee := k.feeMarketKeeper.GetBaseFee(ctx)
 
-	result, err := k.traceTx(ctx, signer, req.TxIndex, ethCfg, tx, baseFee, req.TraceConfig)
+	for i, tx := range req.Predecessors {
+		ethTx := tx.AsTransaction()
+		msg, err := ethTx.AsMessage(signer, baseFee)
+		if err != nil {
+			continue
+		}
+		k.SetTxHashTransient(ethTx.Hash())
+		k.SetTxIndexTransient(uint64(i))
+
+		if _, err := k.ApplyMessage(msg, types.NewNoOpTracer(), true); err != nil {
+			continue
+		}
+	}
+
+	tx := req.Msg.AsTransaction()
+	result, err := k.traceTx(ctx, signer, req.TxIndex, ethCfg, tx, baseFee, req.TraceConfig, false)
 	if err != nil {
+		// error will be returned with detail status from traceTx
 		return nil, err
 	}
 
@@ -383,6 +401,54 @@ func (k Keeper) TraceTx(c context.Context, req *types.QueryTraceTxRequest) (*typ
 	}, nil
 }
 
+// TraceBlock configures a new tracer according to the provided configuration, and
+// executes the given message in the provided environment for all the transactions in the queried block.
+// The return value will be tracer dependent.
+func (k Keeper) TraceBlock(c context.Context, req *types.QueryTraceBlockRequest) (*types.QueryTraceBlockResponse, error) {
+	if req == nil {
+		return nil, status.Error(codes.InvalidArgument, "empty request")
+	}
+
+	if req.TraceConfig != nil && req.TraceConfig.Limit < 0 {
+		return nil, status.Errorf(codes.InvalidArgument, "output limit cannot be negative, got %d", req.TraceConfig.Limit)
+	}
+
+	ctx := sdk.UnwrapSDKContext(c)
+	ctx = ctx.WithBlockHeight(req.BlockNumber)
+	ctx = ctx.WithBlockTime(req.BlockTime)
+	ctx = ctx.WithHeaderHash(common.Hex2Bytes(req.BlockHash))
+	k.WithContext(ctx)
+
+	params := k.GetParams(ctx)
+	ethCfg := params.ChainConfig.EthereumConfig(k.eip155ChainID)
+	signer := ethtypes.MakeSigner(ethCfg, big.NewInt(ctx.BlockHeight()))
+	baseFee := k.feeMarketKeeper.GetBaseFee(ctx)
+
+	txsLength := len(req.Txs)
+	results := make([]*types.TxTraceResult, 0, txsLength)
+
+	for i, tx := range req.Txs {
+		result := types.TxTraceResult{}
+		ethTx := tx.AsTransaction()
+		traceResult, err := k.traceTx(ctx, signer, uint64(i), ethCfg, ethTx, baseFee, req.TraceConfig, true)
+		if err != nil {
+			result.Error = err.Error()
+			continue
+		}
+		result.Result = traceResult
+		results = append(results, &result)
+	}
+
+	resultData, err := json.Marshal(results)
+	if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	return &types.QueryTraceBlockResponse{
+		Data: resultData,
+	}, nil
+}
+
 func (k *Keeper) traceTx(
 	ctx sdk.Context,
 	signer ethtypes.Signer,
@@ -391,6 +457,7 @@ func (k *Keeper) traceTx(
 	tx *ethtypes.Transaction,
 	baseFee *big.Int,
 	traceConfig *types.TraceConfig,
+	commitMessage bool,
 ) (*interface{}, error) {
 	// Assemble the structured logger or the JavaScript tracer
 	var (
@@ -462,7 +529,7 @@ func (k *Keeper) traceTx(
 	k.SetTxHashTransient(txHash)
 	k.SetTxIndexTransient(txIndex)
 
-	res, err := k.ApplyMessage(msg, tracer, false)
+	res, err := k.ApplyMessage(msg, tracer, commitMessage)
 	if err != nil {
 		return nil, status.Error(codes.Internal, err.Error())
 	}

x/evm/keeper/grpc_query_test.go

@@ -596,8 +596,10 @@ func (suite *KeeperTestSuite) TestTraceTx() {
 	ctx := sdk.WrapSDKContext(suite.ctx)
 	// TODO deploy contract that triggers internal transactions
 	var (
-		txMsg       *types.MsgEthereumTx
+		txMsg        *types.MsgEthereumTx
-		traceConfig *types.TraceConfig
+		traceConfig  *types.TraceConfig
+		txIndex      uint64
+		predecessors []*types.MsgEthereumTx
 	)
 
 	testCases := []struct {
@@ -610,16 +612,20 @@ func (suite *KeeperTestSuite) TestTraceTx() {
 		{
 			msg: "default trace",
 			malleate: func() {
+				txIndex = 0
 				traceConfig = nil
+				predecessors = []*types.MsgEthereumTx{}
 			},
 			expPass:       true,
 			traceResponse: []byte{0x7b, 0x22, 0x67, 0x61, 0x73, 0x22, 0x3a, 0x33, 0x34, 0x38, 0x32, 0x38, 0x2c, 0x22, 0x66, 0x61, 0x69, 0x6c, 0x65, 0x64, 0x22, 0x3a, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x2c, 0x22, 0x72, 0x65, 0x74, 0x75, 0x72, 0x6e, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x3a, 0x22, 0x22, 0x2c, 0x22, 0x73, 0x74, 0x72, 0x75, 0x63, 0x74, 0x4c, 0x6f, 0x67, 0x73, 0x22, 0x3a, 0x5b, 0x5d, 0x7d},
 		}, {
 			msg: "javascript tracer",
 			malleate: func() {
+				txIndex = 0
 				traceConfig = &types.TraceConfig{
 					Tracer: "{data: [], fault: function(log) {}, step: function(log) { if(log.op.toString() == \"CALL\") this.data.push(log.stack.peek(0)); }, result: function() { return this.data; }}",
 				}
+				predecessors = []*types.MsgEthereumTx{}
 			},
 			expPass:       true,
 			traceResponse: []byte{0x5b, 0x5d},
@@ -627,7 +633,9 @@ func (suite *KeeperTestSuite) TestTraceTx() {
 		{
 			msg: "default trace with dynamicTxFee",
 			malleate: func() {
+				txIndex = 0
 				traceConfig = nil
+				predecessors = []*types.MsgEthereumTx{}
 			},
 			expPass:       true,
 			traceResponse: []byte{0x7b, 0x22, 0x67, 0x61, 0x73, 0x22, 0x3a, 0x33, 0x34, 0x38, 0x32, 0x38, 0x2c, 0x22, 0x66, 0x61, 0x69, 0x6c, 0x65, 0x64, 0x22, 0x3a, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x2c, 0x22, 0x72, 0x65, 0x74, 0x75, 0x72, 0x6e, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x3a, 0x22, 0x22, 0x2c, 0x22, 0x73, 0x74, 0x72, 0x75, 0x63, 0x74, 0x4c, 0x6f, 0x67, 0x73, 0x22, 0x3a, 0x5b, 0x5d, 0x7d},
@@ -635,14 +643,35 @@ func (suite *KeeperTestSuite) TestTraceTx() {
 		}, {
 			msg: "javascript tracer with dynamicTxFee",
 			malleate: func() {
+				txIndex = 0
 				traceConfig = &types.TraceConfig{
 					Tracer: "{data: [], fault: function(log) {}, step: function(log) { if(log.op.toString() == \"CALL\") this.data.push(log.stack.peek(0)); }, result: function() { return this.data; }}",
 				}
+				predecessors = []*types.MsgEthereumTx{}
 			},
 			expPass:       true,
 			traceResponse: []byte{0x5b, 0x5d},
 			dynamicTxFee:  true,
 		},
+		{
+			msg: "default tracer with predecessors",
+			malleate: func() {
+				txIndex = 1
+				traceConfig = nil
+
+				contractAddr := suite.DeployTestContract(suite.T(), suite.address, sdk.NewIntWithDecimal(1000, 18).BigInt())
+				suite.Commit()
+				// Generate token transfer transaction
+				firstTx := suite.TransferERC20Token(suite.T(), contractAddr, suite.address, common.HexToAddress("0x378c50D9264C63F3F92B806d4ee56E9D86FfB3Ec"), sdk.NewIntWithDecimal(1, 18).BigInt())
+				txMsg = suite.TransferERC20Token(suite.T(), contractAddr, suite.address, common.HexToAddress("0x378c50D9264C63F3F92B806d4ee56E9D86FfB3Ec"), sdk.NewIntWithDecimal(1, 18).BigInt())
+				suite.Commit()
+
+				predecessors = append(predecessors, firstTx)
+			},
+			expPass:       true,
+			traceResponse: []byte{0x7b, 0x22, 0x67, 0x61, 0x73, 0x22, 0x3a, 0x33, 0x30, 0x38, 0x32, 0x38, 0x2c, 0x22, 0x66, 0x61, 0x69, 0x6c, 0x65, 0x64, 0x22, 0x3a, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x2c, 0x22, 0x72, 0x65, 0x74, 0x75, 0x72, 0x6e, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x3a, 0x22, 0x22, 0x2c, 0x22, 0x73, 0x74, 0x72, 0x75, 0x63, 0x74, 0x4c, 0x6f, 0x67, 0x73, 0x22, 0x3a, 0x5b, 0x5d, 0x7d},
+			dynamicTxFee:  false,
+		},
 	}
 
 	for _, tc := range testCases {
@@ -658,9 +687,10 @@ func (suite *KeeperTestSuite) TestTraceTx() {
 
 			tc.malleate()
 			traceReq := types.QueryTraceTxRequest{
-				Msg:         txMsg,
+				Msg:          txMsg,
-				TraceConfig: traceConfig,
+				TraceConfig:  traceConfig,
-				TxIndex:     1, // Can be hardcoded as this will be the only tx included in the block
+				TxIndex:      txIndex,
+				Predecessors: predecessors,
 			}
 			res, err := suite.queryClient.TraceTx(ctx, &traceReq)
 
@@ -675,3 +705,121 @@ func (suite *KeeperTestSuite) TestTraceTx() {
 
 	suite.dynamicTxFee = false // reset flag
 }
+
+func (suite *KeeperTestSuite) TestTraceBlock() {
+	ctx := sdk.WrapSDKContext(suite.ctx)
+	var (
+		txs         []*types.MsgEthereumTx
+		traceConfig *types.TraceConfig
+	)
+
+	testCases := []struct {
+		msg           string
+		malleate      func()
+		expPass       bool
+		traceResponse []byte
+		dynamicTxFee  bool
+	}{
+		{
+			msg: "default trace",
+			malleate: func() {
+				traceConfig = nil
+			},
+			expPass:       true,
+			traceResponse: []byte{0x5b, 0x7b, 0x22, 0x72, 0x65, 0x73, 0x75, 0x6c, 0x74, 0x22, 0x3a, 0x7b, 0x22, 0x67, 0x61, 0x73, 0x22, 0x3a, 0x33, 0x34, 0x38, 0x32, 0x38, 0x2c, 0x22, 0x66, 0x61, 0x69, 0x6c, 0x65, 0x64, 0x22, 0x3a, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x2c, 0x22, 0x72, 0x65, 0x74, 0x75, 0x72, 0x6e, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x3a, 0x22, 0x22, 0x2c, 0x22, 0x73, 0x74, 0x72, 0x75, 0x63, 0x74, 0x4c, 0x6f, 0x67, 0x73, 0x22, 0x3a, 0x5b, 0x5d, 0x7d, 0x7d, 0x5d},
+		},
+		{
+			msg: "filtered trace",
+			malleate: func() {
+				traceConfig = &types.TraceConfig{
+					DisableStack:   true,
+					DisableStorage: true,
+					EnableMemory:   false,
+				}
+			},
+			expPass:       true,
+			traceResponse: []byte{0x5b, 0x7b, 0x22, 0x72, 0x65, 0x73, 0x75, 0x6c, 0x74, 0x22, 0x3a, 0x7b, 0x22, 0x67, 0x61, 0x73, 0x22, 0x3a, 0x33, 0x34, 0x38, 0x32, 0x38, 0x2c, 0x22, 0x66, 0x61, 0x69, 0x6c, 0x65, 0x64, 0x22, 0x3a, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x2c, 0x22, 0x72, 0x65, 0x74, 0x75, 0x72, 0x6e, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x3a, 0x22, 0x22, 0x2c, 0x22, 0x73, 0x74, 0x72, 0x75, 0x63, 0x74, 0x4c, 0x6f, 0x67, 0x73, 0x22, 0x3a, 0x5b, 0x5d, 0x7d, 0x7d, 0x5d},
+		}, {
+			msg: "javascript tracer",
+			malleate: func() {
+				traceConfig = &types.TraceConfig{
+					Tracer: "{data: [], fault: function(log) {}, step: function(log) { if(log.op.toString() == \"CALL\") this.data.push(log.stack.peek(0)); }, result: function() { return this.data; }}",
+				}
+			},
+			expPass:       true,
+			traceResponse: []byte{0x5b, 0x7b, 0x22, 0x72, 0x65, 0x73, 0x75, 0x6c, 0x74, 0x22, 0x3a, 0x5b, 0x5d, 0x7d, 0x5d},
+		},
+		{
+			msg: "default trace with dynamicTxFee and filtered return",
+			malleate: func() {
+				traceConfig = &types.TraceConfig{
+					DisableStack:   true,
+					DisableStorage: true,
+					EnableMemory:   false,
+				}
+			},
+			expPass:       true,
+			traceResponse: []byte{0x5b, 0x7b, 0x22, 0x72, 0x65, 0x73, 0x75, 0x6c, 0x74, 0x22, 0x3a, 0x7b, 0x22, 0x67, 0x61, 0x73, 0x22, 0x3a, 0x33, 0x34, 0x38, 0x32, 0x38, 0x2c, 0x22, 0x66, 0x61, 0x69, 0x6c, 0x65, 0x64, 0x22, 0x3a, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x2c, 0x22, 0x72, 0x65, 0x74, 0x75, 0x72, 0x6e, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x3a, 0x22, 0x22, 0x2c, 0x22, 0x73, 0x74, 0x72, 0x75, 0x63, 0x74, 0x4c, 0x6f, 0x67, 0x73, 0x22, 0x3a, 0x5b, 0x5d, 0x7d, 0x7d, 0x5d},
+			dynamicTxFee:  true,
+		}, {
+			msg: "javascript tracer with dynamicTxFee",
+			malleate: func() {
+				traceConfig = &types.TraceConfig{
+					Tracer: "{data: [], fault: function(log) {}, step: function(log) { if(log.op.toString() == \"CALL\") this.data.push(log.stack.peek(0)); }, result: function() { return this.data; }}",
+				}
+			},
+			expPass:       true,
+			traceResponse: []byte{0x5b, 0x7b, 0x22, 0x72, 0x65, 0x73, 0x75, 0x6c, 0x74, 0x22, 0x3a, 0x5b, 0x5d, 0x7d, 0x5d},
+			dynamicTxFee:  true,
+		},
+		{
+			msg: "tracer with multiple transactions",
+			malleate: func() {
+				traceConfig = nil
+				contractAddr := suite.DeployTestContract(suite.T(), suite.address, sdk.NewIntWithDecimal(1000, 18).BigInt())
+				suite.Commit()
+				// create multiple transactions in the same block
+				firstTx := suite.TransferERC20Token(suite.T(), contractAddr, suite.address, common.HexToAddress("0x378c50D9264C63F3F92B806d4ee56E9D86FfB3Ec"), sdk.NewIntWithDecimal(1, 18).BigInt())
+				secondTx := suite.TransferERC20Token(suite.T(), contractAddr, suite.address, common.HexToAddress("0x378c50D9264C63F3F92B806d4ee56E9D86FfB3Ec"), sdk.NewIntWithDecimal(1, 18).BigInt())
+				suite.Commit()
+				// overwrite txs to include only the ones on new block
+				txs = append([]*types.MsgEthereumTx{}, firstTx, secondTx)
+			},
+			expPass:       true,
+			traceResponse: []byte{0x5b, 0x7b, 0x22, 0x72, 0x65, 0x73, 0x75, 0x6c, 0x74, 0x22, 0x3a, 0x7b, 0x22, 0x67, 0x61, 0x73, 0x22, 0x3a, 0x33, 0x34, 0x38, 0x32, 0x38, 0x2c, 0x22, 0x66, 0x61, 0x69, 0x6c, 0x65, 0x64, 0x22, 0x3a, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x2c, 0x22, 0x72, 0x65, 0x74, 0x75, 0x72, 0x6e, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x3a, 0x22, 0x22, 0x2c, 0x22, 0x73, 0x74, 0x72, 0x75, 0x63, 0x74, 0x4c, 0x6f, 0x67, 0x73, 0x22, 0x3a, 0x5b, 0x5d, 0x7d, 0x7d, 0x2c, 0x7b, 0x22, 0x72, 0x65, 0x73, 0x75, 0x6c, 0x74, 0x22, 0x3a, 0x7b, 0x22, 0x67, 0x61, 0x73, 0x22, 0x3a, 0x33, 0x30, 0x38, 0x32, 0x38, 0x2c, 0x22, 0x66, 0x61, 0x69, 0x6c, 0x65, 0x64, 0x22, 0x3a, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x2c, 0x22, 0x72, 0x65, 0x74, 0x75, 0x72, 0x6e, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x22, 0x3a, 0x22, 0x22, 0x2c, 0x22, 0x73, 0x74, 0x72, 0x75, 0x63, 0x74, 0x4c, 0x6f, 0x67, 0x73, 0x22, 0x3a, 0x5b, 0x5d, 0x7d, 0x7d, 0x5d},
+			dynamicTxFee:  false,
+		},
+	}
+
+	for _, tc := range testCases {
+		suite.Run(fmt.Sprintf("Case %s", tc.msg), func() {
+			txs = []*types.MsgEthereumTx{}
+			suite.dynamicTxFee = tc.dynamicTxFee
+			suite.SetupTest()
+			// Deploy contract
+			contractAddr := suite.DeployTestContract(suite.T(), suite.address, sdk.NewIntWithDecimal(1000, 18).BigInt())
+			suite.Commit()
+			// Generate token transfer transaction
+			txMsg := suite.TransferERC20Token(suite.T(), contractAddr, suite.address, common.HexToAddress("0x378c50D9264C63F3F92B806d4ee56E9D86FfB3Ec"), sdk.NewIntWithDecimal(1, 18).BigInt())
+			suite.Commit()
+
+			txs = append(txs, txMsg)
+
+			tc.malleate()
+			traceReq := types.QueryTraceBlockRequest{
+				Txs:         txs,
+				TraceConfig: traceConfig,
+			}
+			res, err := suite.queryClient.TraceBlock(ctx, &traceReq)
+
+			if tc.expPass {
+				suite.Require().NoError(err)
+				suite.Require().Equal(tc.traceResponse, res.Data)
+			} else {
+				suite.Require().Error(err)
+			}
+		})
+	}
+
+	suite.dynamicTxFee = false // reset flag
+}

x/evm/types/query.go

@@ -6,5 +6,19 @@ import (
 
 // UnpackInterfaces implements UnpackInterfacesMesssage.UnpackInterfaces
 func (m QueryTraceTxRequest) UnpackInterfaces(unpacker codectypes.AnyUnpacker) error {
+	for _, msg := range m.Predecessors {
+		if err := msg.UnpackInterfaces(unpacker); err != nil {
+			return err
+		}
+	}
 	return m.Msg.UnpackInterfaces(unpacker)
 }
+
+func (m QueryTraceBlockRequest) UnpackInterfaces(unpacker codectypes.AnyUnpacker) error {
+	for _, msg := range m.Txs {
+		if err := msg.UnpackInterfaces(unpacker); err != nil {
+			return err
+		}
+	}
+	return nil
+}

x/evm/types/query.pb.gw.go

@@ -503,6 +503,42 @@ func local_request_Query_TraceTx_0(ctx context.Context, marshaler runtime.Marsha
 
 }
 
+var (
+	filter_Query_TraceBlock_0 = &utilities.DoubleArray{Encoding: map[string]int{}, Base: []int(nil), Check: []int(nil)}
+)
+
+func request_Query_TraceBlock_0(ctx context.Context, marshaler runtime.Marshaler, client QueryClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QueryTraceBlockRequest
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Query_TraceBlock_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.TraceBlock(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_Query_TraceBlock_0(ctx context.Context, marshaler runtime.Marshaler, server QueryServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq QueryTraceBlockRequest
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Query_TraceBlock_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.TraceBlock(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
 // RegisterQueryHandlerServer registers the http handlers for service Query to "mux".
 // UnaryRPC     :call QueryServer directly.
 // StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
@@ -709,6 +745,26 @@ func RegisterQueryHandlerServer(ctx context.Context, mux *runtime.ServeMux, serv
 
 	})
 
+	mux.Handle("GET", pattern_Query_TraceBlock_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_Query_TraceBlock_0(rctx, inboundMarshaler, server, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_Query_TraceBlock_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	return nil
 }
 
@@ -950,6 +1006,26 @@ func RegisterQueryHandlerClient(ctx context.Context, mux *runtime.ServeMux, clie
 
 	})
 
+	mux.Handle("GET", pattern_Query_TraceBlock_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_Query_TraceBlock_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_Query_TraceBlock_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
 	return nil
 }
 
@@ -973,6 +1049,8 @@ var (
 	pattern_Query_EstimateGas_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"ethermint", "evm", "v1", "estimate_gas"}, "", runtime.AssumeColonVerbOpt(true)))
 
 	pattern_Query_TraceTx_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"ethermint", "evm", "v1", "trace_tx"}, "", runtime.AssumeColonVerbOpt(true)))
+
+	pattern_Query_TraceBlock_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"ethermint", "evm", "v1", "trace_block"}, "", runtime.AssumeColonVerbOpt(true)))
 )
 
 var (
@@ -995,4 +1073,6 @@ var (
 	forward_Query_EstimateGas_0 = runtime.ForwardResponseMessage
 
 	forward_Query_TraceTx_0 = runtime.ForwardResponseMessage
+
+	forward_Query_TraceBlock_0 = runtime.ForwardResponseMessage
 )

x/evm/types/tx.pb.go

@@ -13,6 +13,7 @@ import (
 	grpc1 "github.com/gogo/protobuf/grpc"
 	proto "github.com/gogo/protobuf/proto"
 	_ "github.com/regen-network/cosmos-proto"
+	_ "google.golang.org/genproto/googleapis/api/annotations"
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
 	status "google.golang.org/grpc/status"
@@ -351,59 +352,61 @@ func init() {
 func init() { proto.RegisterFile("ethermint/evm/v1/tx.proto", fileDescriptor_f75ac0a12d075f21) }
 
 var fileDescriptor_f75ac0a12d075f21 = []byte{
-	// 818 bytes of a gzipped FileDescriptorProto
+	// 853 bytes of a gzipped FileDescriptorProto
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+	0xc4, 0xb1, 0x60, 0x78, 0x5a, 0xb0, 0xea, 0xa9, 0x01, 0x62, 0xef, 0x31, 0x3c, 0x2d, 0xd2, 0x3c,
-	0xe3, 0x47, 0x1c, 0xa6, 0xbd, 0x9a, 0xe6, 0xf9, 0xa4, 0x26, 0x5c, 0x4c, 0x6a, 0xc2, 0x9b, 0x49,
+	0xfc, 0x04, 0xc0, 0xda, 0x23, 0x16, 0xe8, 0x1f, 0x41, 0xb8, 0xb1, 0xcd, 0xcc, 0xdd, 0x04, 0xb6,
-	0x4d, 0x78, 0x78, 0x59, 0xcb, 0x5c, 0x5c, 0xd6, 0x32, 0x2f, 0x2f, 0x6b, 0x99, 0xbf, 0x9b, 0x37,
+	0x6a, 0xe9, 0xbe, 0xf6, 0x17, 0x0e, 0xeb, 0x62, 0xad, 0x57, 0x3e, 0xfe, 0xe1, 0xd7, 0x2f, 0xaa,
-	0x78, 0x42, 0xfb, 0x30, 0x24, 0x2e, 0x31, 0x66, 0x17, 0x77, 0xc4, 0x6f, 0x2e, 0x67, 0xcb, 0x69,
+	0xa6, 0x75, 0xdb, 0xd9, 0x5d, 0xa7, 0xa5, 0xf7, 0x84, 0x67, 0xae, 0xfb, 0x64, 0xd5, 0x03, 0x4f,
-	0x81, 0x1f, 0xd1, 0x5f, 0xde, 0x07, 0x00, 0x00, 0xff, 0xff, 0x03, 0xe3, 0x68, 0xe8, 0x0a, 0x08,
+	0x57, 0x3d, 0xf0, 0xcb, 0xaa, 0x07, 0x3e, 0xbf, 0xe8, 0x55, 0x9e, 0x5e, 0xf4, 0x2a, 0x3f, 0x5e,
-	0x00, 0x00,
+	0xf4, 0x2a, 0xef, 0x0f, 0x36, 0xf4, 0xc4, 0x67, 0x28, 0x61, 0x84, 0x6d, 0x84, 0xca, 0x64, 0x30,
+	0xa9, 0xaa, 0xb3, 0x86, 0x5c, 0xb6, 0x6f, 0xfe, 0x11, 0x00, 0x00, 0xff, 0xff, 0x4a, 0x54, 0xa7,
+	0x4c, 0x50, 0x08, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.

x/evm/types/tx.pb.gw.go

@@ -0,0 +1,166 @@
+// Code generated by protoc-gen-grpc-gateway. DO NOT EDIT.
+// source: ethermint/evm/v1/tx.proto
+
+/*
+Package types is a reverse proxy.
+
+It translates gRPC into RESTful JSON APIs.
+*/
+package types
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"github.com/golang/protobuf/descriptor"
+	"github.com/golang/protobuf/proto"
+	"github.com/grpc-ecosystem/grpc-gateway/runtime"
+	"github.com/grpc-ecosystem/grpc-gateway/utilities"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/status"
+)
+
+// Suppress "imported and not used" errors
+var _ codes.Code
+var _ io.Reader
+var _ status.Status
+var _ = runtime.String
+var _ = utilities.NewDoubleArray
+var _ = descriptor.ForMessage
+
+var (
+	filter_Msg_EthereumTx_0 = &utilities.DoubleArray{Encoding: map[string]int{}, Base: []int(nil), Check: []int(nil)}
+)
+
+func request_Msg_EthereumTx_0(ctx context.Context, marshaler runtime.Marshaler, client MsgClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq MsgEthereumTx
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Msg_EthereumTx_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := client.EthereumTx(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
+	return msg, metadata, err
+
+}
+
+func local_request_Msg_EthereumTx_0(ctx context.Context, marshaler runtime.Marshaler, server MsgServer, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
+	var protoReq MsgEthereumTx
+	var metadata runtime.ServerMetadata
+
+	if err := req.ParseForm(); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_Msg_EthereumTx_0); err != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
+	msg, err := server.EthereumTx(ctx, &protoReq)
+	return msg, metadata, err
+
+}
+
+// RegisterMsgHandlerServer registers the http handlers for service Msg to "mux".
+// UnaryRPC     :call MsgServer directly.
+// StreamingRPC :currently unsupported pending https://github.com/grpc/grpc-go/issues/906.
+// Note that using this registration option will cause many gRPC library features (such as grpc.SendHeader, etc) to stop working. Consider using RegisterMsgHandlerFromEndpoint instead.
+func RegisterMsgHandlerServer(ctx context.Context, mux *runtime.ServeMux, server MsgServer) error {
+
+	mux.Handle("POST", pattern_Msg_EthereumTx_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateIncomingContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := local_request_Msg_EthereumTx_0(rctx, inboundMarshaler, server, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_Msg_EthereumTx_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+// RegisterMsgHandlerFromEndpoint is same as RegisterMsgHandler but
+// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
+func RegisterMsgHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
+	conn, err := grpc.Dial(endpoint, opts...)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+			return
+		}
+		go func() {
+			<-ctx.Done()
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+		}()
+	}()
+
+	return RegisterMsgHandler(ctx, mux, conn)
+}
+
+// RegisterMsgHandler registers the http handlers for service Msg to "mux".
+// The handlers forward requests to the grpc endpoint over "conn".
+func RegisterMsgHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
+	return RegisterMsgHandlerClient(ctx, mux, NewMsgClient(conn))
+}
+
+// RegisterMsgHandlerClient registers the http handlers for service Msg
+// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "MsgClient".
+// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "MsgClient"
+// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
+// "MsgClient" to call the correct interceptors.
+func RegisterMsgHandlerClient(ctx context.Context, mux *runtime.ServeMux, client MsgClient) error {
+
+	mux.Handle("POST", pattern_Msg_EthereumTx_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_Msg_EthereumTx_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_Msg_EthereumTx_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+var (
+	pattern_Msg_EthereumTx_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"ethermint", "evm", "v1", "ethereum_tx"}, "", runtime.AssumeColonVerbOpt(true)))
+)
+
+var (
+	forward_Msg_EthereumTx_0 = runtime.ForwardResponseMessage
+)