Add endpoint to estimate gas after simulating calls (#1878)

evmrpc/simulate.go

@@ -95,6 +95,18 @@ func (s *SimulationAPI) EstimateGas(ctx context.Context, args ethapi.Transaction
 	return estimate, err
 }
 
+func (s *SimulationAPI) EstimateGasAfterCalls(ctx context.Context, args ethapi.TransactionArgs, calls []ethapi.TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash, overrides *ethapi.StateOverride) (result hexutil.Uint64, returnErr error) {
+	startTime := time.Now()
+	defer recordMetricsWithError("eth_estimateGasAfterCalls", s.connectionType, startTime, returnErr)
+	bNrOrHash := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
+	if blockNrOrHash != nil {
+		bNrOrHash = *blockNrOrHash
+	}
+	ctx = context.WithValue(ctx, CtxIsWasmdPrecompileCallKey, wasmd.IsWasmdCall(args.To))
+	estimate, err := ethapi.DoEstimateGasAfterCalls(ctx, s.backend, args, calls, bNrOrHash, overrides, s.backend.RPCEVMTimeout(), s.backend.RPCGasCap())
+	return estimate, err
+}
+
 func (s *SimulationAPI) Call(ctx context.Context, args ethapi.TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash, overrides *ethapi.StateOverride, blockOverrides *ethapi.BlockOverrides) (result hexutil.Bytes, returnErr error) {
 	startTime := time.Now()
 	defer recordMetrics("eth_call", s.connectionType, startTime, returnErr == nil)

evmrpc/simulate_test.go

@@ -67,6 +67,48 @@ func TestEstimateGas(t *testing.T) {
 	Ctx = Ctx.WithBlockHeight(8)
 }
 
+func TestEstimateGasAfterCalls(t *testing.T) {
+	Ctx = Ctx.WithBlockHeight(1)
+	// estimate get after set
+	_, from := testkeeper.MockAddressPair()
+	amts := sdk.NewCoins(sdk.NewCoin(EVMKeeper.GetBaseDenom(Ctx), sdk.NewInt(20)))
+	EVMKeeper.BankKeeper().MintCoins(Ctx, types.ModuleName, amts)
+	EVMKeeper.BankKeeper().SendCoinsFromModuleToAccount(Ctx, types.ModuleName, sdk.AccAddress(from[:]), amts)
+	_, contractAddr := testkeeper.MockAddressPair()
+	code, err := os.ReadFile("../example/contracts/simplestorage/SimpleStorage.bin")
+	require.Nil(t, err)
+	bz, err := hex.DecodeString(string(code))
+	require.Nil(t, err)
+	abi, err := simplestorage.SimplestorageMetaData.GetAbi()
+	require.Nil(t, err)
+	call, err := abi.Pack("set", big.NewInt(20))
+	require.Nil(t, err)
+	input, err := abi.Pack("get")
+	require.Nil(t, err)
+	EVMKeeper.SetCode(Ctx, contractAddr, bz)
+	txArgs := map[string]interface{}{
+		"from":    from.Hex(),
+		"to":      contractAddr.Hex(),
+		"value":   "0x0",
+		"nonce":   "0x2",
+		"chainId": fmt.Sprintf("%#x", EVMKeeper.ChainID(Ctx)),
+		"input":   fmt.Sprintf("%#x", input),
+	}
+	callArgs := map[string]interface{}{
+		"from":    from.Hex(),
+		"to":      contractAddr.Hex(),
+		"value":   "0x0",
+		"nonce":   "0x2",
+		"chainId": fmt.Sprintf("%#x", EVMKeeper.ChainID(Ctx)),
+		"input":   fmt.Sprintf("%#x", call),
+	}
+	resObj := sendRequestGood(t, "estimateGasAfterCalls", txArgs, []interface{}{callArgs}, nil, map[string]interface{}{})
+	result := resObj["result"].(string)
+	require.Equal(t, "0x536d", result) // 21357 for get
+
+	Ctx = Ctx.WithBlockHeight(8)
+}
+
 func TestCreateAccessList(t *testing.T) {
 	Ctx = Ctx.WithBlockHeight(1)
 

go.mod

@@ -351,7 +351,7 @@ replace (
 	github.com/cosmos/cosmos-sdk => github.com/sei-protocol/sei-cosmos v0.3.37-0.20240923023912-aa7a702d42cc
 	github.com/cosmos/iavl => github.com/sei-protocol/sei-iavl v0.2.0
 	github.com/cosmos/ibc-go/v3 => github.com/sei-protocol/sei-ibc-go/v3 v3.3.2
-	github.com/ethereum/go-ethereum => github.com/sei-protocol/go-ethereum v1.13.5-sei-9.0.20240925211216-af807e581c3a
+	github.com/ethereum/go-ethereum => github.com/sei-protocol/go-ethereum v1.13.5-sei-23
 	github.com/gogo/protobuf => github.com/regen-network/protobuf v1.3.3-alpha.regen.1
 	github.com/sei-protocol/sei-db => github.com/sei-protocol/sei-db v0.0.44
 	// Latest goleveldb is broken, we have to stick to this version

go.sum

@@ -1346,8 +1346,8 @@ github.com/seccomp/libseccomp-golang v0.9.2-0.20220502022130-f33da4d89646/go.mod
 github.com/securego/gosec/v2 v2.11.0 h1:+PDkpzR41OI2jrw1q6AdXZCbsNGNGT7pQjal0H0cArI=
 github.com/securego/gosec/v2 v2.11.0/go.mod h1:SX8bptShuG8reGC0XS09+a4H2BoWSJi+fscA+Pulbpo=
 github.com/segmentio/fasthash v1.0.3/go.mod h1:waKX8l2N8yckOgmSsXJi7x1ZfdKZ4x7KRMzBtS3oedY=
-github.com/sei-protocol/go-ethereum v1.13.5-sei-9.0.20240925211216-af807e581c3a h1:eicGeFgoEmKaSEPXMUMbTvYFk385iw2+u5/Wmqiz/JY=
-github.com/sei-protocol/go-ethereum v1.13.5-sei-9.0.20240925211216-af807e581c3a/go.mod h1:kcRZmuzRn1lVejiFNTz4l4W7imnpq1bDAnuKS/RyhbQ=
+github.com/sei-protocol/go-ethereum v1.13.5-sei-23 h1:rkgeOHC56QTco4mIyGd6cZHtlonulLsaPLZCaMY6TAw=
+github.com/sei-protocol/go-ethereum v1.13.5-sei-23/go.mod h1:kcRZmuzRn1lVejiFNTz4l4W7imnpq1bDAnuKS/RyhbQ=
 github.com/sei-protocol/goutils v0.0.2 h1:Bfa7Sv+4CVLNM20QcpvGb81B8C5HkQC/kW1CQpIbXDA=
 github.com/sei-protocol/goutils v0.0.2/go.mod h1:iYE2DuJfEnM+APPehr2gOUXfuLuPsVxorcDO+Tzq9q8=
 github.com/sei-protocol/sei-cosmos v0.3.37-0.20240923023912-aa7a702d42cc h1:srWLbsoS0NYBIl8OjZOFuPmIeqf+fJTkfsK39MmG3+k=