Problem: grpc query fail on legacy blocks

`BaseFee` and `EthCall`.

Solution:
- since grpc query handlers are used for all versions of the blocks, it need to be compatible with legacy formats.

debug

fix basefee fetch

Revert "debug"

This reverts commit 50ebaf697fc06b0d6e26abd8de8f89717e8a219d.

update gomod2nix

Update CHANGELOG.md

debug

fix panic

Revert "debug"

This reverts commit e08af04b0776bd390c42706cc9ec978e00bcb3bb.

CHANGELOG.md

@@ -66,6 +66,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (rpc) [#1179](https://github.com/evmos/ethermint/pull/1179) Fix gas used in traceTransaction response.
 * (rpc) [#1284](https://github.com/evmos/ethermint/pull/1284) Fix internal trace response upon incomplete `eth_sendTransaction` call.
 * (rpc) [#1340](https://github.com/evmos/ethermint/pull/1340) Fix error response when `eth_estimateGas` height provided is not found.
+* (rpc) [#1354](https://github.com/evmos/ethermint/pull/1354) Fix grpc query failure(`BaseFee` and `EthCall`) on legacy block states.
 
 ## [v0.19.2] - 2022-08-29
 

gomod2nix.toml

@@ -39,8 +39,8 @@ schema = 3
     version = "v1.0.53"
     hash = "sha256-W6qOvqu8sokMlZrpOF1SWG138H0/BotywKNLlDF8Zug="
   [mod."github.com/armon/go-metrics"]
-    version = "v0.4.0"
-    hash = "sha256-mB6EFtn8BZ0u9TcJ6QTYw2SNAr4CnTVOMpiRKaoNH7k="
+    version = "v0.4.1"
+    hash = "sha256-usxTUHA0QQMdM6sHi2z51nmnEKMbA0qUilxJFpWHlYE="
   [mod."github.com/aws/aws-sdk-go"]
     version = "v1.40.45"
     hash = "sha256-7m4jOfXs356SUZG9tR+z3Yfa/O0CorkSkOXg/AmbqRM="
@@ -103,8 +103,8 @@ schema = 3
     version = "v0.19.1"
     hash = "sha256-XrJeCNK0W8j3Qwxya4sr6R05zpI6+oYXFucWguiMiqM="
   [mod."github.com/cosmos/ibc-go/v5"]
-    version = "v5.0.0-rc1"
-    hash = "sha256-y+9EXodnZnV4fobdY0hQcCmNkNwAKNUl+1iivowhMM8="
+    version = "v5.0.0-rc2"
+    hash = "sha256-p4tpb6I6bdXix1sTYivJEygUtM4q+nTIKdSlf6c/LCw="
   [mod."github.com/cosmos/ledger-cosmos-go"]
     version = "v0.11.1"
     hash = "sha256-yli+VvVtZmHo2LPvCY6lYVUfcCDn3sBLDL+a8KIlqDA="
@@ -272,8 +272,8 @@ schema = 3
     version = "v2.0.3"
     hash = "sha256-5VsJMQzJSNd4F7yAl3iF/q6JodWOlE4dUvTQ0UGPe+k="
   [mod."github.com/holiman/uint256"]
-    version = "v1.2.0"
-    hash = "sha256-5CG+o1Q7hpis9Wpp1EFs7nmR1LlDuTK3bf6zsn+JID4="
+    version = "v1.2.1"
+    hash = "sha256-1N+MvvzTIegV1UPEGUVyxBZaxczId/Z/BUVcnx7ckHE="
   [mod."github.com/huin/goupnp"]
     version = "v1.0.3"
     hash = "sha256-EMGmTdoQhP2bVbCPX37hes5krqXn6NFexfnKr9E5u8I="
@@ -344,17 +344,17 @@ schema = 3
     version = "v0.0.5"
     hash = "sha256-/5i70IkH/qSW5KjGzv8aQNKh9tHoz98tqtL0K2DMFn4="
   [mod."github.com/onsi/ginkgo/v2"]
-    version = "v2.1.6"
-    hash = "sha256-3g0WFID8e1qGnW8aUTljMrG0hF+dKFgEXj/pds4iRVE="
+    version = "v2.2.0"
+    hash = "sha256-+VzAN6pB5DwEqT/KHdhgfPnWBtyIIcHi1J4HQkqCvvU="
   [mod."github.com/onsi/gomega"]
-    version = "v1.20.1"
-    hash = "sha256-HFjxj1pjHnY/weEqMM8hkhI+me+302fpg9hTZkJBVNw="
+    version = "v1.20.2"
+    hash = "sha256-3SGyvhWVlR3tYojnRSDr2SRToontAtw4hbZX+agn/Hs="
   [mod."github.com/pelletier/go-toml"]
     version = "v1.9.5"
     hash = "sha256-RJ9K1BTId0Mled7S66iGgxHkZ5JKEIsrrNaEfM8aImc="
   [mod."github.com/pelletier/go-toml/v2"]
-    version = "v2.0.2"
-    hash = "sha256-z3JgSi7AKZul1Ta5NwpLVebKw30mGUKc+ijssiAClVU="
+    version = "v2.0.5"
+    hash = "sha256-YWdHmuCGliWfiH0tTHuf07AAn/zOJNoq7g+5fvqdnrQ="
   [mod."github.com/petermattis/goid"]
     version = "v0.0.0-20180202154549-b0b1615b78e5"
     hash = "sha256-TCyVuP7rAtrvlterVCapFtbf6UmIf72FXQvkQoDtDj4="
@@ -419,8 +419,8 @@ schema = 3
     version = "v1.0.5"
     hash = "sha256-w9LLYzxxP74WHT4ouBspH/iQZXjuAh2WQCHsuvyEjAw="
   [mod."github.com/spf13/viper"]
-    version = "v1.12.0"
-    hash = "sha256-51kkvy5tGqdyNgQgZWG5WRYnjgCwwGyuIGZsIdPB2n0="
+    version = "v1.13.0"
+    hash = "sha256-yHviS3lMo1hB6jwyiU3zpyGtxP6v9AsyZUKiLeCVz+k="
   [mod."github.com/status-im/keycard-go"]
     version = "v0.0.0-20200402102358-957c09536969"
     hash = "sha256-yddXXuu6mEFEO2/K6c1tWymeBKzOcvLQnNsFGRjtfXk="
@@ -431,8 +431,8 @@ schema = 3
     version = "v1.8.0"
     hash = "sha256-LDxBAebK+A06y4vbH7cd1sVBOameIY81Xm8/9OPZh7o="
   [mod."github.com/subosito/gotenv"]
-    version = "v1.4.0"
-    hash = "sha256-H5mdiXO7LZ7ggJMjeiOLGWa1UbweXy/10KwEpFOrPv8="
+    version = "v1.4.1"
+    hash = "sha256-aHAUs8Gh+BREUulljWr7vBZQg1BLu/M/8UfNK8CWSn8="
   [mod."github.com/syndtr/goleveldb"]
     version = "v1.0.1-0.20210819022825-2ae1ddf74ef7"
     hash = "sha256-36a4hgVQfwtS2zhylKpQuFhrjdc/Y8pF0dxc26jcZIU="
@@ -515,8 +515,8 @@ schema = 3
     version = "v1.28.1"
     hash = "sha256-sTJYgvlv5is7vHNxcuigF2lNASp0QonhUgnrguhfHSU="
   [mod."gopkg.in/ini.v1"]
-    version = "v1.66.6"
-    hash = "sha256-icGrattKhCLweSJqNhyOs6AavHapLFaOQ9xCA8wID08="
+    version = "v1.67.0"
+    hash = "sha256-V10ahGNGT+NLRdKUyRg1dos5RxLBXBk1xutcnquc/+4="
   [mod."gopkg.in/natefinch/npipe.v2"]
     version = "v2.0.0-20160621034901-c1b8fa8bdcce"
     hash = "sha256-ytqeVZqn4kd2uc65HvEjPlpPA2VnBmPfu5DsFlO0o+g="

x/evm/keeper/keeper.go

@@ -330,6 +330,10 @@ func (k Keeper) getBaseFee(ctx sdk.Context, london bool) *big.Int {
 // GetMinGasMultiplier returns the MinGasMultiplier param from the fee market module
 func (k Keeper) GetMinGasMultiplier(ctx sdk.Context) sdk.Dec {
 	fmkParmas := k.feeMarketKeeper.GetParams(ctx)
+	if fmkParmas.MinGasMultiplier.IsNil() {
+		// in case we are executing eth_call on a legacy block, returns a zero value.
+		return sdk.ZeroDec()
+	}
 	return fmkParmas.MinGasMultiplier
 }
 

x/feemarket/keeper/keeper.go

@@ -1,12 +1,15 @@
 package keeper
 
 import (
+	"math/big"
+
 	"github.com/cosmos/cosmos-sdk/codec"
 	storetypes "github.com/cosmos/cosmos-sdk/store/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
 	"github.com/tendermint/tendermint/libs/log"
 
+	v010 "github.com/evmos/ethermint/x/feemarket/migrations/v010"
 	"github.com/evmos/ethermint/x/feemarket/types"
 )
 
@@ -90,3 +93,14 @@ func (k Keeper) AddTransientGasWanted(ctx sdk.Context, gasWanted uint64) (uint64
 	k.SetTransientBlockGasWanted(ctx, result)
 	return result, nil
 }
+
+// GetBaseFeeV1 get the base fee from v1 version of states.
+// return nil if base fee is not enabled
+func (k Keeper) GetBaseFeeV1(ctx sdk.Context) *big.Int {
+	store := ctx.KVStore(k.storeKey)
+	bz := store.Get(v010.KeyPrefixBaseFeeV1)
+	if len(bz) == 0 {
+		return nil
+	}
+	return new(big.Int).SetBytes(bz)
+}

x/feemarket/keeper/params.go

@@ -36,7 +36,13 @@ func (k Keeper) GetBaseFee(ctx sdk.Context) *big.Int {
 		return nil
 	}
 
-	return params.BaseFee.BigInt()
+	baseFee := params.BaseFee.BigInt()
+	if baseFee == nil || baseFee.Sign() == 0 {
+		// try v1 format
+		return k.GetBaseFeeV1(ctx)
+	}
+
+	return baseFee
 }
 
 // SetBaseFee set's the base fee in the paramSpace