CHANGELOG.md

@@ -50,6 +50,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (ante) [#1176](https://github.com/evmos/ethermint/pull/1176) Fix invalid tx hashes; Remove `Size_` field and validate `Hash`/`From` fields in ante handler,
   recompute eth tx hashes in JSON-RPC APIs to fix old blocks.
 * (deps) [#1168](https://github.com/evmos/ethermint/pull/1168) Upgrade cosmos-sdk to v0.46.
+* (feemarket) [#1194](https://github.com/evmos/ethermint/pull/1194) Apply feemarket to native cosmos tx.
 
 ### API Breaking
 

app/ante/ante.go

@@ -27,6 +27,7 @@ func NewAnteHandler(options HandlerOptions) (sdk.AnteHandler, error) {
 	if err := options.validate(); err != nil {
 		return nil, err
 	}
+
 	return func(
 		ctx sdk.Context, tx sdk.Tx, sim bool,
 	) (newCtx sdk.Context, err error) {
@@ -45,6 +46,9 @@ func NewAnteHandler(options HandlerOptions) (sdk.AnteHandler, error) {
 				case "/ethermint.types.v1.ExtensionOptionsWeb3Tx":
 					// handle as normal Cosmos SDK tx, except signature is checked for EIP712 representation
 					anteHandler = newCosmosAnteHandlerEip712(options)
+				case "/ethermint.types.v1.ExtensionOptionDynamicFeeTx":
+					// cosmos-sdk tx with dynamic fee extension
+					anteHandler = newCosmosAnteHandler(options)
 				default:
 					return ctx, sdkerrors.Wrapf(
 						sdkerrors.ErrUnknownExtensionOptions,

app/ante/ante_test.go

@@ -305,8 +305,8 @@ func (suite AnteTestSuite) TestAnteHandler() {
 			"success - DeliverTx EIP712 signed Cosmos Tx with MsgSend",
 			func() sdk.Tx {
 				from := acc.GetAddress()
-				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(20)))
 				gas := uint64(200000)
+				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(100*int64(gas))))
 				txBuilder := suite.CreateTestEIP712TxBuilderMsgSend(from, privKey, "ethermint_9000-1", gas, amount)
 				return txBuilder.GetTx()
 			}, false, false, true,
@@ -315,9 +315,9 @@ func (suite AnteTestSuite) TestAnteHandler() {
 			"success - DeliverTx EIP712 signed Cosmos Tx with DelegateMsg",
 			func() sdk.Tx {
 				from := acc.GetAddress()
-				coinAmount := sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(20))
-				amount := sdk.NewCoins(coinAmount)
 				gas := uint64(200000)
+				coinAmount := sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(100*int64(gas)))
+				amount := sdk.NewCoins(coinAmount)
 				txBuilder := suite.CreateTestEIP712TxBuilderMsgDelegate(from, privKey, "ethermint_9000-1", gas, amount)
 				return txBuilder.GetTx()
 			}, false, false, true,
@@ -326,8 +326,8 @@ func (suite AnteTestSuite) TestAnteHandler() {
 			"fails - DeliverTx EIP712 signed Cosmos Tx with wrong Chain ID",
 			func() sdk.Tx {
 				from := acc.GetAddress()
-				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(20)))
 				gas := uint64(200000)
+				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(100*int64(gas))))
 				txBuilder := suite.CreateTestEIP712TxBuilderMsgSend(from, privKey, "ethermint_9002-1", gas, amount)
 				return txBuilder.GetTx()
 			}, false, false, false,
@@ -336,8 +336,8 @@ func (suite AnteTestSuite) TestAnteHandler() {
 			"fails - DeliverTx EIP712 signed Cosmos Tx with different gas fees",
 			func() sdk.Tx {
 				from := acc.GetAddress()
-				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(20)))
 				gas := uint64(200000)
+				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(100*int64(gas))))
 				txBuilder := suite.CreateTestEIP712TxBuilderMsgSend(from, privKey, "ethermint_9001-1", gas, amount)
 				txBuilder.SetGasLimit(uint64(300000))
 				txBuilder.SetFeeAmount(sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(30))))
@@ -348,8 +348,8 @@ func (suite AnteTestSuite) TestAnteHandler() {
 			"fails - DeliverTx EIP712 signed Cosmos Tx with empty signature",
 			func() sdk.Tx {
 				from := acc.GetAddress()
-				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(20)))
 				gas := uint64(200000)
+				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(100*int64(gas))))
 				txBuilder := suite.CreateTestEIP712TxBuilderMsgSend(from, privKey, "ethermint_9001-1", gas, amount)
 				sigsV2 := signing.SignatureV2{}
 				txBuilder.SetSignatures(sigsV2)
@@ -360,8 +360,8 @@ func (suite AnteTestSuite) TestAnteHandler() {
 			"fails - DeliverTx EIP712 signed Cosmos Tx with invalid sequence",
 			func() sdk.Tx {
 				from := acc.GetAddress()
-				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(20)))
 				gas := uint64(200000)
+				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(100*int64(gas))))
 				txBuilder := suite.CreateTestEIP712TxBuilderMsgSend(from, privKey, "ethermint_9001-1", gas, amount)
 				nonce, err := suite.app.AccountKeeper.GetSequence(suite.ctx, acc.GetAddress())
 				suite.Require().NoError(err)
@@ -380,8 +380,8 @@ func (suite AnteTestSuite) TestAnteHandler() {
 			"fails - DeliverTx EIP712 signed Cosmos Tx with invalid signMode",
 			func() sdk.Tx {
 				from := acc.GetAddress()
-				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(20)))
 				gas := uint64(200000)
+				amount := sdk.NewCoins(sdk.NewCoin(evmtypes.DefaultEVMDenom, sdkmath.NewInt(100*int64(gas))))
 				txBuilder := suite.CreateTestEIP712TxBuilderMsgSend(from, privKey, "ethermint_9001-1", gas, amount)
 				nonce, err := suite.app.AccountKeeper.GetSequence(suite.ctx, acc.GetAddress())
 				suite.Require().NoError(err)

app/ante/eth_test.go

@@ -9,7 +9,6 @@ import (
 	"github.com/evmos/ethermint/app/ante"
 	"github.com/evmos/ethermint/server/config"
 	"github.com/evmos/ethermint/tests"
-	evmkeeper "github.com/evmos/ethermint/x/evm/keeper"
 	"github.com/evmos/ethermint/x/evm/statedb"
 	evmtypes "github.com/evmos/ethermint/x/evm/types"
 
@@ -227,7 +226,7 @@ func (suite AnteTestSuite) TestEthGasConsumeDecorator() {
 	baseFee := suite.app.EvmKeeper.GetBaseFee(suite.ctx, ethCfg)
 	suite.Require().Equal(int64(1000000000), baseFee.Int64())
 
-	gasPrice := new(big.Int).Add(baseFee, evmkeeper.DefaultPriorityReduction.BigInt())
+	gasPrice := new(big.Int).Add(baseFee, evmtypes.DefaultPriorityReduction.BigInt())
 
 	tx2GasLimit := uint64(1000000)
 	tx2 := evmtypes.NewTxContract(suite.app.EvmKeeper.ChainID(), 1, big.NewInt(10), tx2GasLimit, gasPrice, nil, nil, nil, &ethtypes.AccessList{{Address: addr, StorageKeys: nil}})
@@ -236,8 +235,8 @@ func (suite AnteTestSuite) TestEthGasConsumeDecorator() {
 
 	dynamicFeeTx := evmtypes.NewTxContract(suite.app.EvmKeeper.ChainID(), 1, big.NewInt(10), tx2GasLimit,
 		nil, // gasPrice
-		new(big.Int).Add(baseFee, big.NewInt(evmkeeper.DefaultPriorityReduction.Int64()*2)), // gasFeeCap
+		new(big.Int).Add(baseFee, big.NewInt(evmtypes.DefaultPriorityReduction.Int64()*2)), // gasFeeCap
-		evmkeeper.DefaultPriorityReduction.BigInt(),                                         // gasTipCap
+		evmtypes.DefaultPriorityReduction.BigInt(),                                         // gasTipCap
 		nil, &ethtypes.AccessList{{Address: addr, StorageKeys: nil}})
 	dynamicFeeTx.From = addr.Hex()
 	dynamicFeeTxPriority := int64(1)

app/ante/fee_checker.go

@@ -0,0 +1,142 @@
+package ante
+
+import (
+	"fmt"
+	"math"
+
+	sdkmath "cosmossdk.io/math"
+
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
+	authante "github.com/cosmos/cosmos-sdk/x/auth/ante"
+	ethermint "github.com/evmos/ethermint/types"
+	"github.com/evmos/ethermint/x/evm/types"
+)
+
+// NewDynamicFeeChecker returns a `TxFeeChecker` that applies a dynamic fee to
+// Cosmos txs using the EIP-1559 fee market logic.
+// This can be called in both CheckTx and deliverTx modes.
+// a) feeCap = tx.fees / tx.gas
+// b) tipFeeCap = tx.MaxPriorityPrice (default) or MaxInt64
+// - when `ExtensionOptionDynamicFeeTx` is omitted, `tipFeeCap` defaults to `MaxInt64`.
+// - when london hardfork is not enabled, it fallbacks to SDK default behavior (validator min-gas-prices).
+// - Tx priority is set to `effectiveGasPrice / DefaultPriorityReduction`.
+func NewDynamicFeeChecker(k DynamicFeeEVMKeeper) authante.TxFeeChecker {
+	return func(ctx sdk.Context, tx sdk.Tx) (sdk.Coins, int64, error) {
+		feeTx, ok := tx.(sdk.FeeTx)
+		if !ok {
+			return nil, 0, fmt.Errorf("tx must be a FeeTx")
+		}
+
+		if ctx.BlockHeight() == 0 {
+			// genesis transactions: fallback to min-gas-price logic
+			return checkTxFeeWithValidatorMinGasPrices(ctx, feeTx)
+		}
+
+		params := k.GetParams(ctx)
+		denom := params.EvmDenom
+		ethCfg := params.ChainConfig.EthereumConfig(k.ChainID())
+
+		baseFee := k.GetBaseFee(ctx, ethCfg)
+		if baseFee == nil {
+			// london hardfork is not enabled: fallback to min-gas-prices logic
+			return checkTxFeeWithValidatorMinGasPrices(ctx, feeTx)
+		}
+
+		// default to `MaxInt64` when there's no extension option.
+		maxPriorityPrice := sdkmath.NewInt(math.MaxInt64)
+
+		// get the priority tip cap from the extension option.
+		if hasExtOptsTx, ok := tx.(authante.HasExtensionOptionsTx); ok {
+			for _, opt := range hasExtOptsTx.GetExtensionOptions() {
+				if extOpt, ok := opt.GetCachedValue().(*ethermint.ExtensionOptionDynamicFeeTx); ok {
+					maxPriorityPrice = extOpt.MaxPriorityPrice
+					break
+				}
+			}
+		}
+
+		gas := feeTx.GetGas()
+		feeCoins := feeTx.GetFee()
+		fee := feeCoins.AmountOfNoDenomValidation(denom)
+
+		feeCap := fee.Quo(sdkmath.NewIntFromUint64(gas))
+		baseFeeInt := sdkmath.NewIntFromBigInt(baseFee)
+
+		if feeCap.LT(baseFeeInt) {
+			return nil, 0, sdkerrors.Wrapf(sdkerrors.ErrInsufficientFee, "insufficient gas prices; got: %s required: %s", feeCap, baseFeeInt)
+		}
+
+		// calculate the effective gas price using the EIP-1559 logic.
+		effectivePrice := sdkmath.NewIntFromBigInt(types.EffectiveGasPrice(baseFeeInt.BigInt(), feeCap.BigInt(), maxPriorityPrice.BigInt()))
+
+		// NOTE: create a new coins slice without having to validate the denom
+		effectiveFee := sdk.Coins{
+			{
+				Denom:  denom,
+				Amount: effectivePrice.Mul(sdkmath.NewIntFromUint64(gas)),
+			},
+		}
+
+		bigPriority := effectivePrice.Sub(baseFeeInt).Quo(types.DefaultPriorityReduction)
+		priority := int64(math.MaxInt64)
+
+		if bigPriority.IsInt64() {
+			priority = bigPriority.Int64()
+		}
+
+		return effectiveFee, priority, nil
+	}
+}
+
+// checkTxFeeWithValidatorMinGasPrices implements the default fee logic, where the minimum price per
+// unit of gas is fixed and set by each validator, and the tx priority is computed from the gas price.
+func checkTxFeeWithValidatorMinGasPrices(ctx sdk.Context, tx sdk.FeeTx) (sdk.Coins, int64, error) {
+	feeCoins := tx.GetFee()
+	gas := tx.GetGas()
+	minGasPrices := ctx.MinGasPrices()
+
+	// Ensure that the provided fees meet a minimum threshold for the validator,
+	// if this is a CheckTx. This is only for local mempool purposes, and thus
+	// is only ran on check tx.
+	if ctx.IsCheckTx() && !minGasPrices.IsZero() {
+		requiredFees := make(sdk.Coins, len(minGasPrices))
+
+		// Determine the required fees by multiplying each required minimum gas
+		// price by the gas limit, where fee = ceil(minGasPrice * gasLimit).
+		glDec := sdk.NewDec(int64(gas))
+
+		for i, gp := range minGasPrices {
+			fee := gp.Amount.Mul(glDec)
+			requiredFees[i] = sdk.NewCoin(gp.Denom, fee.Ceil().RoundInt())
+		}
+
+		if !feeCoins.IsAnyGTE(requiredFees) {
+			return nil, 0, sdkerrors.Wrapf(sdkerrors.ErrInsufficientFee, "insufficient fees; got: %s required: %s", feeCoins, requiredFees)
+		}
+	}
+
+	priority := getTxPriority(feeCoins)
+	return feeCoins, priority, nil
+}
+
+// getTxPriority returns a naive tx priority based on the amount of the smallest denomination of the fee
+// provided in a transaction.
+func getTxPriority(fees sdk.Coins) int64 {
+	var priority int64
+
+	for _, fee := range fees {
+		amt := fee.Amount.Quo(types.DefaultPriorityReduction)
+		p := int64(math.MaxInt64)
+
+		if amt.IsInt64() {
+			p = amt.Int64()
+		}
+
+		if priority == 0 || p < priority {
+			priority = p
+		}
+	}
+
+	return priority
+}

app/ante/fee_checker_test.go

@@ -0,0 +1,219 @@
+package ante
+
+import (
+	"math/big"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/cosmos/cosmos-sdk/types/module"
+	authtx "github.com/cosmos/cosmos-sdk/x/auth/tx"
+	"github.com/ethereum/go-ethereum/params"
+	"github.com/evmos/ethermint/encoding"
+	ethermint "github.com/evmos/ethermint/types"
+	"github.com/evmos/ethermint/x/evm/types"
+	evmtypes "github.com/evmos/ethermint/x/evm/types"
+	"github.com/tendermint/tendermint/libs/log"
+	tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
+)
+
+var _ DynamicFeeEVMKeeper = MockEVMKeeper{}
+
+type MockEVMKeeper struct {
+	BaseFee        *big.Int
+	EnableLondonHF bool
+}
+
+func (m MockEVMKeeper) GetBaseFee(ctx sdk.Context, ethCfg *params.ChainConfig) *big.Int {
+	if m.EnableLondonHF {
+		return m.BaseFee
+	}
+	return nil
+}
+
+func (m MockEVMKeeper) GetParams(ctx sdk.Context) evmtypes.Params {
+	return evmtypes.DefaultParams()
+}
+
+func (m MockEVMKeeper) ChainID() *big.Int {
+	return big.NewInt(9000)
+}
+
+func TestSDKTxFeeChecker(t *testing.T) {
+	// testCases:
+	//   fallback
+	//      genesis tx
+	//      checkTx, validate with min-gas-prices
+	//      deliverTx, no validation
+	//   dynamic fee
+	//      with extension option
+	//      without extension option
+	//      london hardfork enableness
+	encodingConfig := encoding.MakeConfig(module.NewBasicManager())
+	minGasPrices := sdk.NewDecCoins(sdk.NewDecCoin("aphoton", sdk.NewInt(10)))
+
+	genesisCtx := sdk.NewContext(nil, tmproto.Header{}, false, log.NewNopLogger())
+	checkTxCtx := sdk.NewContext(nil, tmproto.Header{Height: 1}, true, log.NewNopLogger()).WithMinGasPrices(minGasPrices)
+	deliverTxCtx := sdk.NewContext(nil, tmproto.Header{Height: 1}, false, log.NewNopLogger())
+
+	testCases := []struct {
+		name        string
+		ctx         sdk.Context
+		keeper      DynamicFeeEVMKeeper
+		buildTx     func() sdk.Tx
+		expFees     string
+		expPriority int64
+		expSuccess  bool
+	}{
+		{
+			"success, genesis tx",
+			genesisCtx,
+			MockEVMKeeper{},
+			func() sdk.Tx {
+				return encodingConfig.TxConfig.NewTxBuilder().GetTx()
+			},
+			"",
+			0,
+			true,
+		},
+		{
+			"fail, min-gas-prices",
+			checkTxCtx,
+			MockEVMKeeper{},
+			func() sdk.Tx {
+				return encodingConfig.TxConfig.NewTxBuilder().GetTx()
+			},
+			"",
+			0,
+			false,
+		},
+		{
+			"success, min-gas-prices",
+			checkTxCtx,
+			MockEVMKeeper{},
+			func() sdk.Tx {
+				txBuilder := encodingConfig.TxConfig.NewTxBuilder()
+				txBuilder.SetGasLimit(1)
+				txBuilder.SetFeeAmount(sdk.NewCoins(sdk.NewCoin("aphoton", sdk.NewInt(10))))
+				return txBuilder.GetTx()
+			},
+			"10aphoton",
+			0,
+			true,
+		},
+		{
+			"success, min-gas-prices deliverTx",
+			deliverTxCtx,
+			MockEVMKeeper{},
+			func() sdk.Tx {
+				return encodingConfig.TxConfig.NewTxBuilder().GetTx()
+			},
+			"",
+			0,
+			true,
+		},
+		{
+			"fail, dynamic fee",
+			deliverTxCtx,
+			MockEVMKeeper{
+				EnableLondonHF: true, BaseFee: big.NewInt(1),
+			},
+			func() sdk.Tx {
+				txBuilder := encodingConfig.TxConfig.NewTxBuilder()
+				txBuilder.SetGasLimit(1)
+				return txBuilder.GetTx()
+			},
+			"",
+			0,
+			false,
+		},
+		{
+			"success, dynamic fee",
+			deliverTxCtx,
+			MockEVMKeeper{
+				EnableLondonHF: true, BaseFee: big.NewInt(10),
+			},
+			func() sdk.Tx {
+				txBuilder := encodingConfig.TxConfig.NewTxBuilder()
+				txBuilder.SetGasLimit(1)
+				txBuilder.SetFeeAmount(sdk.NewCoins(sdk.NewCoin("aphoton", sdk.NewInt(10))))
+				return txBuilder.GetTx()
+			},
+			"10aphoton",
+			0,
+			true,
+		},
+		{
+			"success, dynamic fee priority",
+			deliverTxCtx,
+			MockEVMKeeper{
+				EnableLondonHF: true, BaseFee: big.NewInt(10),
+			},
+			func() sdk.Tx {
+				txBuilder := encodingConfig.TxConfig.NewTxBuilder()
+				txBuilder.SetGasLimit(1)
+				txBuilder.SetFeeAmount(sdk.NewCoins(sdk.NewCoin("aphoton", sdk.NewInt(10).Mul(types.DefaultPriorityReduction).Add(sdk.NewInt(10)))))
+				return txBuilder.GetTx()
+			},
+			"10000010aphoton",
+			10,
+			true,
+		},
+		{
+			"success, dynamic fee empty tipFeeCap",
+			deliverTxCtx,
+			MockEVMKeeper{
+				EnableLondonHF: true, BaseFee: big.NewInt(10),
+			},
+			func() sdk.Tx {
+				txBuilder := encodingConfig.TxConfig.NewTxBuilder().(authtx.ExtensionOptionsTxBuilder)
+				txBuilder.SetGasLimit(1)
+				txBuilder.SetFeeAmount(sdk.NewCoins(sdk.NewCoin("aphoton", sdk.NewInt(10).Mul(types.DefaultPriorityReduction))))
+
+				option, err := codectypes.NewAnyWithValue(&ethermint.ExtensionOptionDynamicFeeTx{})
+				require.NoError(t, err)
+				txBuilder.SetExtensionOptions(option)
+				return txBuilder.GetTx()
+			},
+			"10aphoton",
+			0,
+			true,
+		},
+		{
+			"success, dynamic fee tipFeeCap",
+			deliverTxCtx,
+			MockEVMKeeper{
+				EnableLondonHF: true, BaseFee: big.NewInt(10),
+			},
+			func() sdk.Tx {
+				txBuilder := encodingConfig.TxConfig.NewTxBuilder().(authtx.ExtensionOptionsTxBuilder)
+				txBuilder.SetGasLimit(1)
+				txBuilder.SetFeeAmount(sdk.NewCoins(sdk.NewCoin("aphoton", sdk.NewInt(10).Mul(types.DefaultPriorityReduction).Add(sdk.NewInt(10)))))
+
+				option, err := codectypes.NewAnyWithValue(&ethermint.ExtensionOptionDynamicFeeTx{
+					MaxPriorityPrice: sdk.NewInt(5).Mul(types.DefaultPriorityReduction),
+				})
+				require.NoError(t, err)
+				txBuilder.SetExtensionOptions(option)
+				return txBuilder.GetTx()
+			},
+			"5000010aphoton",
+			5,
+			true,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			fees, priority, err := NewDynamicFeeChecker(tc.keeper)(tc.ctx, tc.buildTx())
+			if tc.expSuccess {
+				require.Equal(t, tc.expFees, fees.String())
+				require.Equal(t, tc.expPriority, priority)
+			} else {
+				require.Error(t, err)
+			}
+		})
+	}
+}

app/ante/interfaces.go

@@ -14,17 +14,22 @@ import (
 	feemarkettypes "github.com/evmos/ethermint/x/feemarket/types"
 )
 
+// DynamicFeeEVMKeeper is a subset of EVMKeeper interface that supports dynamic fee checker
+type DynamicFeeEVMKeeper interface {
+	ChainID() *big.Int
+	GetParams(ctx sdk.Context) evmtypes.Params
+	GetBaseFee(ctx sdk.Context, ethCfg *params.ChainConfig) *big.Int
+}
+
 // EVMKeeper defines the expected keeper interface used on the Eth AnteHandler
 type EVMKeeper interface {
 	statedb.Keeper
+	DynamicFeeEVMKeeper
 
-	ChainID() *big.Int
-	GetParams(ctx sdk.Context) evmtypes.Params
 	NewEVM(ctx sdk.Context, msg core.Message, cfg *evmtypes.EVMConfig, tracer vm.EVMLogger, stateDB vm.StateDB) *vm.EVM
 	DeductTxCostsFromUserBalance(
 		ctx sdk.Context, msgEthTx evmtypes.MsgEthereumTx, txData evmtypes.TxData, denom string, homestead, istanbul, london bool,
 	) (fees sdk.Coins, priority int64, err error)
-	GetBaseFee(ctx sdk.Context, ethCfg *params.ChainConfig) *big.Int
 	GetBalance(ctx sdk.Context, addr common.Address) *big.Int
 	ResetTransientGasUsed(ctx sdk.Context)
 	GetTxIndexTransient(ctx sdk.Context) uint64

app/app.go

@@ -600,15 +600,17 @@ func NewEthermintApp(
 // use Ethermint's custom AnteHandler
 func (app *EthermintApp) setAnteHandler(txConfig client.TxConfig, maxGasWanted uint64) {
 	anteHandler, err := ante.NewAnteHandler(ante.HandlerOptions{
-		AccountKeeper:   app.AccountKeeper,
+		AccountKeeper:          app.AccountKeeper,
-		BankKeeper:      app.BankKeeper,
+		BankKeeper:             app.BankKeeper,
-		SignModeHandler: txConfig.SignModeHandler(),
+		SignModeHandler:        txConfig.SignModeHandler(),
-		FeegrantKeeper:  app.FeeGrantKeeper,
+		FeegrantKeeper:         app.FeeGrantKeeper,
-		SigGasConsumer:  ante.DefaultSigVerificationGasConsumer,
+		SigGasConsumer:         ante.DefaultSigVerificationGasConsumer,
-		IBCKeeper:       app.IBCKeeper,
+		IBCKeeper:              app.IBCKeeper,
-		EvmKeeper:       app.EvmKeeper,
+		EvmKeeper:              app.EvmKeeper,
-		FeeMarketKeeper: app.FeeMarketKeeper,
+		FeeMarketKeeper:        app.FeeMarketKeeper,
-		MaxTxGasWanted:  maxGasWanted,
+		MaxTxGasWanted:         maxGasWanted,
+		ExtensionOptionChecker: ethermint.HasDynamicFeeExtensionOption,
+		TxFeeChecker:           ante.NewDynamicFeeChecker(app.EvmKeeper),
 	})
 	if err != nil {
 		panic(err)

app/simulation_test.go

@@ -32,6 +32,7 @@ import (
 	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
 	ibctransfertypes "github.com/cosmos/ibc-go/v5/modules/apps/transfer/types"
 	ibchost "github.com/cosmos/ibc-go/v5/modules/core/24-host"
+	"github.com/evmos/ethermint/app/ante"
 	evmenc "github.com/evmos/ethermint/encoding"
 	abci "github.com/tendermint/tendermint/abci/types"
 	"github.com/tendermint/tendermint/libs/log"
@@ -62,6 +63,32 @@ func fauxMerkleModeOpt(bapp *baseapp.BaseApp) {
 	bapp.SetFauxMerkleMode()
 }
 
+// NewSimApp disable feemarket on native tx, otherwise the cosmos-sdk simulation tests will fail.
+func NewSimApp(logger log.Logger, db dbm.DB) (*EthermintApp, error) {
+	encodingConfig := MakeEncodingConfig()
+	app := NewEthermintApp(logger, db, nil, false, map[int64]bool{}, DefaultNodeHome, simapp.FlagPeriodValue, encodingConfig, simapp.EmptyAppOptions{}, fauxMerkleModeOpt)
+	// disable feemarket on native tx
+	anteHandler, err := ante.NewAnteHandler(ante.HandlerOptions{
+		AccountKeeper:   app.AccountKeeper,
+		BankKeeper:      app.BankKeeper,
+		SignModeHandler: encodingConfig.TxConfig.SignModeHandler(),
+		FeegrantKeeper:  app.FeeGrantKeeper,
+		SigGasConsumer:  ante.DefaultSigVerificationGasConsumer,
+		IBCKeeper:       app.IBCKeeper,
+		EvmKeeper:       app.EvmKeeper,
+		FeeMarketKeeper: app.FeeMarketKeeper,
+		MaxTxGasWanted:  0,
+	})
+	if err != nil {
+		return nil, err
+	}
+	app.SetAnteHandler(anteHandler)
+	if err := app.LoadLatestVersion(); err != nil {
+		return nil, err
+	}
+	return app, nil
+}
+
 // interBlockCacheOpt returns a BaseApp option function that sets the persistent
 // inter-block write-through cache.
 func interBlockCacheOpt() func(*baseapp.BaseApp) {
@@ -82,8 +109,9 @@ func TestFullAppSimulation(t *testing.T) {
 		require.NoError(t, os.RemoveAll(dir))
 	}()
 
-	app := NewEthermintApp(logger, db, nil, true, map[int64]bool{}, DefaultNodeHome, simapp.FlagPeriodValue, MakeEncodingConfig(), simapp.EmptyAppOptions{}, fauxMerkleModeOpt)
+	app, err := NewSimApp(logger, db)
 	require.Equal(t, appName, app.Name())
+	require.NoError(t, err)
 
 	// run randomized simulation
 	_, simParams, simErr := simulation.SimulateFromSeed(
@@ -121,8 +149,8 @@ func TestAppImportExport(t *testing.T) {
 		require.NoError(t, db.Close())
 		require.NoError(t, os.RemoveAll(dir))
 	}()
-
+	app, err := NewSimApp(logger, db)
-	app := NewEthermintApp(logger, db, nil, true, map[int64]bool{}, DefaultNodeHome, simapp.FlagPeriodValue, MakeEncodingConfig(), simapp.EmptyAppOptions{}, fauxMerkleModeOpt)
+	require.NoError(t, err)
 	require.Equal(t, appName, app.Name())
 
 	// Run randomized simulation
@@ -163,8 +191,9 @@ func TestAppImportExport(t *testing.T) {
 		require.NoError(t, os.RemoveAll(newDir))
 	}()
 
-	newApp := NewEthermintApp(log.NewNopLogger(), newDB, nil, true, map[int64]bool{}, DefaultNodeHome, simapp.FlagPeriodValue, MakeEncodingConfig(), simapp.EmptyAppOptions{}, fauxMerkleModeOpt)
+	newApp, err := NewSimApp(log.NewNopLogger(), newDB)
 	require.Equal(t, appName, newApp.Name())
+	require.NoError(t, err)
 
 	var genesisState simapp.GenesisState
 	err = json.Unmarshal(exported.AppState, &genesisState)
@@ -236,8 +265,9 @@ func TestAppSimulationAfterImport(t *testing.T) {
 		require.NoError(t, os.RemoveAll(dir))
 	}()
 
-	app := NewEthermintApp(logger, db, nil, true, map[int64]bool{}, DefaultNodeHome, simapp.FlagPeriodValue, MakeEncodingConfig(), simapp.EmptyAppOptions{}, fauxMerkleModeOpt)
+	app, err := NewSimApp(logger, db)
 	require.Equal(t, appName, app.Name())
+	require.NoError(t, err)
 
 	// Run randomized simulation
 	stopEarly, simParams, simErr := simulation.SimulateFromSeed(
@@ -281,8 +311,9 @@ func TestAppSimulationAfterImport(t *testing.T) {
 		require.NoError(t, os.RemoveAll(newDir))
 	}()
 
-	newApp := NewEthermintApp(log.NewNopLogger(), newDB, nil, true, map[int64]bool{}, DefaultNodeHome, simapp.FlagPeriodValue, MakeEncodingConfig(), simapp.EmptyAppOptions{}, fauxMerkleModeOpt)
+	newApp, err := NewSimApp(log.NewNopLogger(), newDB)
 	require.Equal(t, appName, newApp.Name())
+	require.NoError(t, err)
 
 	newApp.InitChain(abci.RequestInitChain{
 		ChainId:       SimAppChainID,
@@ -333,14 +364,15 @@ func TestAppStateDeterminism(t *testing.T) {
 			}
 
 			db := dbm.NewMemDB()
-			app := NewEthermintApp(logger, db, nil, true, map[int64]bool{}, DefaultNodeHome, simapp.FlagPeriodValue, MakeEncodingConfig(), simapp.EmptyAppOptions{}, interBlockCacheOpt())
+			app, err := NewSimApp(logger, db)
+			require.NoError(t, err)
 
 			fmt.Printf(
 				"running non-determinism simulation; seed %d: %d/%d, attempt: %d/%d\n",
 				config.Seed, i+1, numSeeds, j+1, numTimesToRunPerSeed,
 			)
 
-			_, _, err := simulation.SimulateFromSeed(
+			_, _, err = simulation.SimulateFromSeed(
 				t,
 				os.Stdout,
 				app.BaseApp,

docs/api/proto-docs.md

@@ -79,6 +79,9 @@
 - [ethermint/types/v1/account.proto](#ethermint/types/v1/account.proto)
     - [EthAccount](#ethermint.types.v1.EthAccount)
   
+- [ethermint/types/v1/dynamic_fee.proto](#ethermint/types/v1/dynamic_fee.proto)
+    - [ExtensionOptionDynamicFeeTx](#ethermint.types.v1.ExtensionOptionDynamicFeeTx)
+  
 - [ethermint/types/v1/web3.proto](#ethermint/types/v1/web3.proto)
     - [ExtensionOptionsWeb3Tx](#ethermint.types.v1.ExtensionOptionsWeb3Tx)
   
@@ -1134,6 +1137,37 @@ authtypes.BaseAccount type. It is compatible with the auth AccountKeeper.
 
 
 
+ <!-- end messages -->
+
+ <!-- end enums -->
+
+ <!-- end HasExtensions -->
+
+ <!-- end services -->
+
+
+
+<a name="ethermint/types/v1/dynamic_fee.proto"></a>
+<p align="right"><a href="#top">Top</a></p>
+
+## ethermint/types/v1/dynamic_fee.proto
+
+
+
+<a name="ethermint.types.v1.ExtensionOptionDynamicFeeTx"></a>
+
+### ExtensionOptionDynamicFeeTx
+ExtensionOptionDynamicFeeTx is an extension option that specify the maxPrioPrice for cosmos tx
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| `max_priority_price` | [string](#string) |  | the same as `max_priority_fee_per_gas` in eip-1559 spec |
+
+
+
+
+
  <!-- end messages -->
 
  <!-- end enums -->

proto/ethermint/types/v1/dynamic_fee.proto

@@ -0,0 +1,15 @@
+syntax = "proto3";
+package ethermint.types.v1;
+
+import "gogoproto/gogo.proto";
+
+option go_package = "github.com/evmos/ethermint/types";
+
+// ExtensionOptionDynamicFeeTx is an extension option that specify the maxPrioPrice for cosmos tx
+message ExtensionOptionDynamicFeeTx {
+  // the same as `max_priority_fee_per_gas` in eip-1559 spec
+  string max_priority_price = 1 [
+    (gogoproto.customtype) = "github.com/cosmos/cosmos-sdk/types.Int",
+    (gogoproto.nullable) = false
+  ];
+}

rpc/backend/evm_backend_test.go

@@ -973,7 +973,6 @@ func (suite *BackendTestSuite) TestGetEthereumMsgsFromTendermintBlock() {
 	}
 	for _, tc := range testCases {
 		suite.Run(fmt.Sprintf("Case %s", tc.name), func() {
-
 			suite.SetupTest() // reset test and queries
 
 			msgs := suite.backend.GetEthereumMsgsFromTendermintBlock(tc.resBlock, tc.blockRes)

tests/integration_tests/cosmoscli.py

@@ -0,0 +1,828 @@
+import json
+import tempfile
+
+import requests
+from dateutil.parser import isoparse
+from pystarport.utils import build_cli_args_safe, interact
+
+DEFAULT_GAS_PRICE = "5000000000000aphoton"
+
+
+class ChainCommand:
+    def __init__(self, cmd):
+        self.cmd = cmd
+
+    def __call__(self, cmd, *args, stdin=None, **kwargs):
+        "execute chain-maind"
+        args = " ".join(build_cli_args_safe(cmd, *args, **kwargs))
+        return interact(f"{self.cmd} {args}", input=stdin)
+
+
+class CosmosCLI:
+    "the apis to interact with wallet and blockchain"
+
+    def __init__(
+        self,
+        data_dir,
+        node_rpc,
+        cmd,
+    ):
+        self.data_dir = data_dir
+        self._genesis = json.loads(
+            (self.data_dir / "config" / "genesis.json").read_text()
+        )
+        self.chain_id = self._genesis["chain_id"]
+        self.node_rpc = node_rpc
+        self.raw = ChainCommand(cmd)
+        self.output = None
+        self.error = None
+
+    @property
+    def node_rpc_http(self):
+        return "http" + self.node_rpc.removeprefix("tcp")
+
+    def node_id(self):
+        "get tendermint node id"
+        output = self.raw("tendermint", "show-node-id", home=self.data_dir)
+        return output.decode().strip()
+
+    def delete_account(self, name):
+        "delete wallet account in node's keyring"
+        return self.raw(
+            "keys",
+            "delete",
+            name,
+            "-y",
+            "--force",
+            home=self.data_dir,
+            output="json",
+            keyring_backend="test",
+        )
+
+    def create_account(self, name, mnemonic=None):
+        "create new keypair in node's keyring"
+        if mnemonic is None:
+            output = self.raw(
+                "keys",
+                "add",
+                name,
+                home=self.data_dir,
+                output="json",
+                keyring_backend="test",
+            )
+        else:
+            output = self.raw(
+                "keys",
+                "add",
+                name,
+                "--recover",
+                home=self.data_dir,
+                output="json",
+                keyring_backend="test",
+                stdin=mnemonic.encode() + b"\n",
+            )
+        return json.loads(output)
+
+    def init(self, moniker):
+        "the node's config is already added"
+        return self.raw(
+            "init",
+            moniker,
+            chain_id=self.chain_id,
+            home=self.data_dir,
+        )
+
+    def validate_genesis(self):
+        return self.raw("validate-genesis", home=self.data_dir)
+
+    def add_genesis_account(self, addr, coins, **kwargs):
+        return self.raw(
+            "add-genesis-account",
+            addr,
+            coins,
+            home=self.data_dir,
+            output="json",
+            **kwargs,
+        )
+
+    def gentx(self, name, coins, min_self_delegation=1, pubkey=None):
+        return self.raw(
+            "gentx",
+            name,
+            coins,
+            min_self_delegation=str(min_self_delegation),
+            home=self.data_dir,
+            chain_id=self.chain_id,
+            keyring_backend="test",
+            pubkey=pubkey,
+        )
+
+    def collect_gentxs(self, gentx_dir):
+        return self.raw("collect-gentxs", gentx_dir, home=self.data_dir)
+
+    def status(self):
+        return json.loads(self.raw("status", node=self.node_rpc))
+
+    def block_height(self):
+        return int(self.status()["SyncInfo"]["latest_block_height"])
+
+    def block_time(self):
+        return isoparse(self.status()["SyncInfo"]["latest_block_time"])
+
+    def balances(self, addr):
+        return json.loads(
+            self.raw("query", "bank", "balances", addr, home=self.data_dir)
+        )["balances"]
+
+    def balance(self, addr, denom="aphoton"):
+        denoms = {coin["denom"]: int(coin["amount"]) for coin in self.balances(addr)}
+        return denoms.get(denom, 0)
+
+    def query_tx(self, tx_type, tx_value):
+        tx = self.raw(
+            "query",
+            "tx",
+            "--type",
+            tx_type,
+            tx_value,
+            home=self.data_dir,
+            chain_id=self.chain_id,
+            node=self.node_rpc,
+        )
+        return json.loads(tx)
+
+    def query_all_txs(self, addr):
+        txs = self.raw(
+            "query",
+            "txs-all",
+            addr,
+            home=self.data_dir,
+            keyring_backend="test",
+            chain_id=self.chain_id,
+            node=self.node_rpc,
+        )
+        return json.loads(txs)
+
+    def distribution_commission(self, addr):
+        coin = json.loads(
+            self.raw(
+                "query",
+                "distribution",
+                "commission",
+                addr,
+                output="json",
+                node=self.node_rpc,
+            )
+        )["commission"][0]
+        return float(coin["amount"])
+
+    def distribution_community(self):
+        coin = json.loads(
+            self.raw(
+                "query",
+                "distribution",
+                "community-pool",
+                output="json",
+                node=self.node_rpc,
+            )
+        )["pool"][0]
+        return float(coin["amount"])
+
+    def distribution_reward(self, delegator_addr):
+        coin = json.loads(
+            self.raw(
+                "query",
+                "distribution",
+                "rewards",
+                delegator_addr,
+                output="json",
+                node=self.node_rpc,
+            )
+        )["total"][0]
+        return float(coin["amount"])
+
+    def address(self, name, bech="acc"):
+        output = self.raw(
+            "keys",
+            "show",
+            name,
+            "-a",
+            home=self.data_dir,
+            keyring_backend="test",
+            bech=bech,
+        )
+        return output.strip().decode()
+
+    def account(self, addr):
+        return json.loads(
+            self.raw(
+                "query", "auth", "account", addr, output="json", node=self.node_rpc
+            )
+        )
+
+    def tx_search(self, events: str):
+        "/tx_search"
+        return json.loads(
+            self.raw("query", "txs", events=events, output="json", node=self.node_rpc)
+        )
+
+    def tx_search_rpc(self, events: str):
+        rsp = requests.get(
+            f"{self.node_rpc_http}/tx_search",
+            params={
+                "query": f'"{events}"',
+            },
+        ).json()
+        assert "error" not in rsp, rsp["error"]
+        return rsp["result"]["txs"]
+
+    def tx(self, value, **kwargs):
+        "/tx"
+        default_kwargs = {
+            "home": self.data_dir,
+        }
+        return json.loads(self.raw("query", "tx", value, **(default_kwargs | kwargs)))
+
+    def total_supply(self):
+        return json.loads(
+            self.raw("query", "bank", "total", output="json", node=self.node_rpc)
+        )
+
+    def validator(self, addr):
+        return json.loads(
+            self.raw(
+                "query",
+                "staking",
+                "validator",
+                addr,
+                output="json",
+                node=self.node_rpc,
+            )
+        )
+
+    def validators(self):
+        return json.loads(
+            self.raw(
+                "query", "staking", "validators", output="json", node=self.node_rpc
+            )
+        )["validators"]
+
+    def staking_params(self):
+        return json.loads(
+            self.raw("query", "staking", "params", output="json", node=self.node_rpc)
+        )
+
+    def staking_pool(self, bonded=True):
+        return int(
+            json.loads(
+                self.raw("query", "staking", "pool", output="json", node=self.node_rpc)
+            )["bonded_tokens" if bonded else "not_bonded_tokens"]
+        )
+
+    def transfer(self, from_, to, coins, generate_only=False, **kwargs):
+        kwargs.setdefault("gas_prices", DEFAULT_GAS_PRICE)
+        return json.loads(
+            self.raw(
+                "tx",
+                "bank",
+                "send",
+                from_,
+                to,
+                coins,
+                "-y",
+                "--generate-only" if generate_only else None,
+                home=self.data_dir,
+                **kwargs,
+            )
+        )
+
+    def get_delegated_amount(self, which_addr):
+        return json.loads(
+            self.raw(
+                "query",
+                "staking",
+                "delegations",
+                which_addr,
+                home=self.data_dir,
+                chain_id=self.chain_id,
+                node=self.node_rpc,
+                output="json",
+            )
+        )
+
+    def delegate_amount(self, to_addr, amount, from_addr, gas_price=None):
+        if gas_price is None:
+            return json.loads(
+                self.raw(
+                    "tx",
+                    "staking",
+                    "delegate",
+                    to_addr,
+                    amount,
+                    "-y",
+                    home=self.data_dir,
+                    from_=from_addr,
+                    keyring_backend="test",
+                    chain_id=self.chain_id,
+                    node=self.node_rpc,
+                )
+            )
+        else:
+            return json.loads(
+                self.raw(
+                    "tx",
+                    "staking",
+                    "delegate",
+                    to_addr,
+                    amount,
+                    "-y",
+                    home=self.data_dir,
+                    from_=from_addr,
+                    keyring_backend="test",
+                    chain_id=self.chain_id,
+                    node=self.node_rpc,
+                    gas_prices=gas_price,
+                )
+            )
+
+    # to_addr: croclcl1...  , from_addr: cro1...
+    def unbond_amount(self, to_addr, amount, from_addr):
+        return json.loads(
+            self.raw(
+                "tx",
+                "staking",
+                "unbond",
+                to_addr,
+                amount,
+                "-y",
+                home=self.data_dir,
+                from_=from_addr,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+                node=self.node_rpc,
+            )
+        )
+
+    # to_validator_addr: crocncl1...  ,  from_from_validator_addraddr: crocl1...
+    def redelegate_amount(
+        self, to_validator_addr, from_validator_addr, amount, from_addr
+    ):
+        return json.loads(
+            self.raw(
+                "tx",
+                "staking",
+                "redelegate",
+                from_validator_addr,
+                to_validator_addr,
+                amount,
+                "-y",
+                home=self.data_dir,
+                from_=from_addr,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+                node=self.node_rpc,
+            )
+        )
+
+    # from_delegator can be account name or address
+    def withdraw_all_rewards(self, from_delegator):
+        return json.loads(
+            self.raw(
+                "tx",
+                "distribution",
+                "withdraw-all-rewards",
+                "-y",
+                from_=from_delegator,
+                home=self.data_dir,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+                node=self.node_rpc,
+            )
+        )
+
+    def make_multisig(self, name, signer1, signer2):
+        self.raw(
+            "keys",
+            "add",
+            name,
+            multisig=f"{signer1},{signer2}",
+            multisig_threshold="2",
+            home=self.data_dir,
+            keyring_backend="test",
+        )
+
+    def sign_multisig_tx(self, tx_file, multi_addr, signer_name):
+        return json.loads(
+            self.raw(
+                "tx",
+                "sign",
+                tx_file,
+                from_=signer_name,
+                multisig=multi_addr,
+                home=self.data_dir,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+                node=self.node_rpc,
+            )
+        )
+
+    def sign_batch_multisig_tx(
+        self, tx_file, multi_addr, signer_name, account_number, sequence_number
+    ):
+        r = self.raw(
+            "tx",
+            "sign-batch",
+            "--offline",
+            tx_file,
+            account_number=account_number,
+            sequence=sequence_number,
+            from_=signer_name,
+            multisig=multi_addr,
+            home=self.data_dir,
+            keyring_backend="test",
+            chain_id=self.chain_id,
+            node=self.node_rpc,
+        )
+        return r.decode("utf-8")
+
+    def encode_signed_tx(self, signed_tx):
+        return self.raw(
+            "tx",
+            "encode",
+            signed_tx,
+        )
+
+    def sign_tx(self, tx_file, signer):
+        return json.loads(
+            self.raw(
+                "tx",
+                "sign",
+                tx_file,
+                from_=signer,
+                home=self.data_dir,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+                node=self.node_rpc,
+            )
+        )
+
+    def sign_tx_json(self, tx, signer, max_priority_price=None):
+        if max_priority_price is not None:
+            tx["body"]["extension_options"].append(
+                {
+                    "@type": "/ethermint.types.v1.ExtensionOptionDynamicFeeTx",
+                    "max_priority_price": str(max_priority_price),
+                }
+            )
+        with tempfile.NamedTemporaryFile("w") as fp:
+            json.dump(tx, fp)
+            fp.flush()
+            return self.sign_tx(fp.name, signer)
+
+    def combine_multisig_tx(self, tx_file, multi_name, signer1_file, signer2_file):
+        return json.loads(
+            self.raw(
+                "tx",
+                "multisign",
+                tx_file,
+                multi_name,
+                signer1_file,
+                signer2_file,
+                home=self.data_dir,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+                node=self.node_rpc,
+            )
+        )
+
+    def combine_batch_multisig_tx(
+        self, tx_file, multi_name, signer1_file, signer2_file
+    ):
+        r = self.raw(
+            "tx",
+            "multisign-batch",
+            tx_file,
+            multi_name,
+            signer1_file,
+            signer2_file,
+            home=self.data_dir,
+            keyring_backend="test",
+            chain_id=self.chain_id,
+            node=self.node_rpc,
+        )
+        return r.decode("utf-8")
+
+    def broadcast_tx(self, tx_file, **kwargs):
+        kwargs.setdefault("broadcast_mode", "block")
+        kwargs.setdefault("output", "json")
+        return json.loads(
+            self.raw("tx", "broadcast", tx_file, node=self.node_rpc, **kwargs)
+        )
+
+    def broadcast_tx_json(self, tx, **kwargs):
+        with tempfile.NamedTemporaryFile("w") as fp:
+            json.dump(tx, fp)
+            fp.flush()
+            return self.broadcast_tx(fp.name, **kwargs)
+
+    def unjail(self, addr):
+        return json.loads(
+            self.raw(
+                "tx",
+                "slashing",
+                "unjail",
+                "-y",
+                from_=addr,
+                home=self.data_dir,
+                node=self.node_rpc,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+            )
+        )
+
+    def create_validator(
+        self,
+        amount,
+        moniker=None,
+        commission_max_change_rate="0.01",
+        commission_rate="0.1",
+        commission_max_rate="0.2",
+        min_self_delegation="1",
+        identity="",
+        website="",
+        security_contact="",
+        details="",
+    ):
+        """MsgCreateValidator
+        create the node with create_node before call this"""
+        pubkey = (
+            "'"
+            + (
+                self.raw(
+                    "tendermint",
+                    "show-validator",
+                    home=self.data_dir,
+                )
+                .strip()
+                .decode()
+            )
+            + "'"
+        )
+        return json.loads(
+            self.raw(
+                "tx",
+                "staking",
+                "create-validator",
+                "-y",
+                from_=self.address("validator"),
+                amount=amount,
+                pubkey=pubkey,
+                min_self_delegation=min_self_delegation,
+                # commision
+                commission_rate=commission_rate,
+                commission_max_rate=commission_max_rate,
+                commission_max_change_rate=commission_max_change_rate,
+                # description
+                moniker=moniker,
+                identity=identity,
+                website=website,
+                security_contact=security_contact,
+                details=details,
+                # basic
+                home=self.data_dir,
+                node=self.node_rpc,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+            )
+        )
+
+    def edit_validator(
+        self,
+        commission_rate=None,
+        moniker=None,
+        identity=None,
+        website=None,
+        security_contact=None,
+        details=None,
+    ):
+        """MsgEditValidator"""
+        options = dict(
+            commission_rate=commission_rate,
+            # description
+            moniker=moniker,
+            identity=identity,
+            website=website,
+            security_contact=security_contact,
+            details=details,
+        )
+        return json.loads(
+            self.raw(
+                "tx",
+                "staking",
+                "edit-validator",
+                "-y",
+                from_=self.address("validator"),
+                home=self.data_dir,
+                node=self.node_rpc,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+                **{k: v for k, v in options.items() if v is not None},
+            )
+        )
+
+    def gov_propose(self, proposer, kind, proposal, **kwargs):
+        kwargs.setdefault("gas_prices", DEFAULT_GAS_PRICE)
+        if kind == "software-upgrade":
+            return json.loads(
+                self.raw(
+                    "tx",
+                    "gov",
+                    "submit-proposal",
+                    kind,
+                    proposal["name"],
+                    "-y",
+                    from_=proposer,
+                    # content
+                    title=proposal.get("title"),
+                    description=proposal.get("description"),
+                    upgrade_height=proposal.get("upgrade-height"),
+                    upgrade_time=proposal.get("upgrade-time"),
+                    upgrade_info=proposal.get("upgrade-info"),
+                    deposit=proposal.get("deposit"),
+                    # basic
+                    home=self.data_dir,
+                    **kwargs,
+                )
+            )
+        elif kind == "cancel-software-upgrade":
+            return json.loads(
+                self.raw(
+                    "tx",
+                    "gov",
+                    "submit-proposal",
+                    kind,
+                    "-y",
+                    from_=proposer,
+                    # content
+                    title=proposal.get("title"),
+                    description=proposal.get("description"),
+                    deposit=proposal.get("deposit"),
+                    # basic
+                    home=self.data_dir,
+                    **kwargs,
+                )
+            )
+        else:
+            with tempfile.NamedTemporaryFile("w") as fp:
+                json.dump(proposal, fp)
+                fp.flush()
+                return json.loads(
+                    self.raw(
+                        "tx",
+                        "gov",
+                        "submit-proposal",
+                        kind,
+                        fp.name,
+                        "-y",
+                        from_=proposer,
+                        # basic
+                        home=self.data_dir,
+                        **kwargs,
+                    )
+                )
+
+    def gov_vote(self, voter, proposal_id, option, **kwargs):
+        kwargs.setdefault("gas_prices", DEFAULT_GAS_PRICE)
+        return json.loads(
+            self.raw(
+                "tx",
+                "gov",
+                "vote",
+                proposal_id,
+                option,
+                "-y",
+                from_=voter,
+                home=self.data_dir,
+                **kwargs,
+            )
+        )
+
+    def gov_deposit(self, depositor, proposal_id, amount):
+        return json.loads(
+            self.raw(
+                "tx",
+                "gov",
+                "deposit",
+                proposal_id,
+                amount,
+                "-y",
+                from_=depositor,
+                home=self.data_dir,
+                node=self.node_rpc,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+            )
+        )
+
+    def query_proposals(self, depositor=None, limit=None, status=None, voter=None):
+        return json.loads(
+            self.raw(
+                "query",
+                "gov",
+                "proposals",
+                depositor=depositor,
+                count_total=limit,
+                status=status,
+                voter=voter,
+                output="json",
+                node=self.node_rpc,
+            )
+        )
+
+    def query_proposal(self, proposal_id):
+        return json.loads(
+            self.raw(
+                "query",
+                "gov",
+                "proposal",
+                proposal_id,
+                output="json",
+                node=self.node_rpc,
+            )
+        )
+
+    def query_tally(self, proposal_id):
+        return json.loads(
+            self.raw(
+                "query",
+                "gov",
+                "tally",
+                proposal_id,
+                output="json",
+                node=self.node_rpc,
+            )
+        )
+
+    def ibc_transfer(
+        self,
+        from_,
+        to,
+        amount,
+        channel,  # src channel
+        target_version,  # chain version number of target chain
+        i=0,
+    ):
+        return json.loads(
+            self.raw(
+                "tx",
+                "ibc-transfer",
+                "transfer",
+                "transfer",  # src port
+                channel,
+                to,
+                amount,
+                "-y",
+                # FIXME https://github.com/cosmos/cosmos-sdk/issues/8059
+                "--absolute-timeouts",
+                from_=from_,
+                home=self.data_dir,
+                node=self.node_rpc,
+                keyring_backend="test",
+                chain_id=self.chain_id,
+                packet_timeout_height=f"{target_version}-10000000000",
+                packet_timeout_timestamp=0,
+            )
+        )
+
+    def export(self):
+        return self.raw("export", home=self.data_dir)
+
+    def unsaferesetall(self):
+        return self.raw("unsafe-reset-all")
+
+    def build_evm_tx(self, raw_tx: str, **kwargs):
+        return json.loads(
+            self.raw(
+                "tx",
+                "evm",
+                "raw",
+                raw_tx,
+                "-y",
+                "--generate-only",
+                home=self.data_dir,
+                **kwargs,
+            )
+        )
+
+    def query_base_fee(self, **kwargs):
+        default_kwargs = {"home": self.data_dir}
+        return int(
+            json.loads(
+                self.raw(
+                    "q",
+                    "feemarket",
+                    "base-fee",
+                    **(default_kwargs | kwargs),
+                )
+            )["base_fee"]
+        )

tests/integration_tests/network.py

@@ -8,6 +8,7 @@ import web3
 from pystarport import ports
 from web3.middleware import geth_poa_middleware
 
+from .cosmoscli import CosmosCLI
 from .utils import wait_for_port
 
 
@@ -53,6 +54,9 @@ class Ethermint:
         self._w3 = None
         self._use_websockets = use
 
+    def cosmos_cli(self, i=0):
+        return CosmosCLI(self.base_dir / f"node{i}", self.node_rpc(i), "ethermintd")
+
 
 class Geth:
     def __init__(self, w3):

tests/integration_tests/test_priority.py

@@ -1,5 +1,7 @@
+import sys
+
 from .network import Ethermint
-from .utils import KEYS, sign_transaction
+from .utils import ADDRS, KEYS, eth_to_bech32, sign_transaction, wait_for_new_blocks
 
 PRIORITY_REDUCTION = 1000000
 
@@ -101,14 +103,95 @@ def test_priority(ethermint: Ethermint):
 
     # the later txs should be included earlier because of higher priority
     # FIXME there's some non-deterministics due to mempool logic
-    assert all(included_earlier(r2, r1) for r1, r2 in zip(receipts, receipts[1:]))
+    tx_indexes = [(r.blockNumber, r.transactionIndex) for r in receipts]
+    print(tx_indexes)
+    # the first sent tx are included later, because of lower priority
+    assert all(i1 > i2 for i1, i2 in zip(tx_indexes, tx_indexes[1:]))
 
 
 def included_earlier(receipt1, receipt2):
-    "returns true if receipt1 is earlier than receipt2"
+    "returns true if receipt1 is included earlier than receipt2"
-    if receipt1.blockNumber < receipt2.blockNumber:
+    return (receipt1.blockNumber, receipt1.transactionIndex) < (
-        return True
+        receipt2.blockNumber,
-    elif receipt1.blockNumber == receipt2.blockNumber:
+        receipt2.transactionIndex,
-        return receipt1.transactionIndex < receipt2.transactionIndex
+    )
-    else:
+
-        return False
+
+def test_native_tx_priority(ethermint: Ethermint):
+    cli = ethermint.cosmos_cli()
+    base_fee = cli.query_base_fee()
+    print("base_fee", base_fee)
+    test_cases = [
+        {
+            "from": eth_to_bech32(ADDRS["community"]),
+            "to": eth_to_bech32(ADDRS["validator"]),
+            "amount": "1000aphoton",
+            "gas_prices": f"{base_fee + PRIORITY_REDUCTION * 6}aphoton",
+            "max_priority_price": 0,
+        },
+        {
+            "from": eth_to_bech32(ADDRS["signer1"]),
+            "to": eth_to_bech32(ADDRS["signer2"]),
+            "amount": "1000aphoton",
+            "gas_prices": f"{base_fee + PRIORITY_REDUCTION * 6}aphoton",
+            "max_priority_price": PRIORITY_REDUCTION * 2,
+        },
+        {
+            "from": eth_to_bech32(ADDRS["signer2"]),
+            "to": eth_to_bech32(ADDRS["signer1"]),
+            "amount": "1000aphoton",
+            "gas_prices": f"{base_fee + PRIORITY_REDUCTION * 4}aphoton",
+            "max_priority_price": PRIORITY_REDUCTION * 4,
+        },
+        {
+            "from": eth_to_bech32(ADDRS["validator"]),
+            "to": eth_to_bech32(ADDRS["community"]),
+            "amount": "1000aphoton",
+            "gas_prices": f"{base_fee + PRIORITY_REDUCTION * 6}aphoton",
+            "max_priority_price": None,  # no extension, maximum tipFeeCap
+        },
+    ]
+    txs = []
+    expect_priorities = []
+    for tc in test_cases:
+        tx = cli.transfer(
+            tc["from"],
+            tc["to"],
+            tc["amount"],
+            gas_prices=tc["gas_prices"],
+            generate_only=True,
+        )
+        txs.append(
+            cli.sign_tx_json(
+                tx, tc["from"], max_priority_price=tc.get("max_priority_price")
+            )
+        )
+        gas_price = int(tc["gas_prices"].removesuffix("aphoton"))
+        expect_priorities.append(
+            min(
+                get_max_priority_price(tc.get("max_priority_price")),
+                gas_price - base_fee,
+            )
+            // PRIORITY_REDUCTION
+        )
+    assert expect_priorities == [0, 2, 4, 6]
+
+    txhashes = []
+    for tx in txs:
+        rsp = cli.broadcast_tx_json(tx, broadcast_mode="sync")
+        assert rsp["code"] == 0, rsp["raw_log"]
+        txhashes.append(rsp["txhash"])
+
+    print("wait for two new blocks, so the sent txs are all included")
+    wait_for_new_blocks(cli, 2)
+
+    tx_results = [cli.tx_search_rpc(f"tx.hash='{txhash}'")[0] for txhash in txhashes]
+    tx_indexes = [(int(r["height"]), r["index"]) for r in tx_results]
+    print(tx_indexes)
+    # the first sent tx are included later, because of lower priority
+    assert all(i1 > i2 for i1, i2 in zip(tx_indexes, tx_indexes[1:]))
+
+
+def get_max_priority_price(max_priority_price):
+    "default to max int64 if None"
+    return max_priority_price if max_priority_price is not None else sys.maxsize

tests/integration_tests/utils.py

@@ -4,8 +4,10 @@ import socket
 import time
 from pathlib import Path
 
+import bech32
 from dotenv import load_dotenv
 from eth_account import Account
+from hexbytes import HexBytes
 from web3._utils.transactions import fill_nonce, fill_transaction_defaults
 
 load_dotenv(Path(__file__).parent.parent.parent / "scripts/.env")
@@ -64,6 +66,15 @@ def w3_wait_for_new_blocks(w3, n):
             break
 
 
+def wait_for_new_blocks(cli, n):
+    begin_height = int((cli.status())["SyncInfo"]["latest_block_height"])
+    while True:
+        time.sleep(0.5)
+        cur_height = int((cli.status())["SyncInfo"]["latest_block_height"])
+        if cur_height - begin_height >= n:
+            break
+
+
 def deploy_contract(w3, jsonfile, args=(), key=KEYS["validator"]):
     """
     deploy contract and return the deployed contract instance
@@ -95,3 +106,8 @@ def send_transaction(w3, tx, key=KEYS["validator"]):
     signed = sign_transaction(w3, tx, key)
     txhash = w3.eth.send_raw_transaction(signed.rawTransaction)
     return w3.eth.wait_for_transaction_receipt(txhash)
+
+
+def eth_to_bech32(addr, prefix=ETHERMINT_ADDRESS_PREFIX):
+    bz = bech32.convertbits(HexBytes(addr), 8, 5)
+    return bech32.bech32_encode(prefix, bz)

types/codec.go

@@ -20,5 +20,6 @@ func RegisterInterfaces(registry codectypes.InterfaceRegistry) {
 	registry.RegisterImplementations(
 		(*tx.TxExtensionOptionI)(nil),
 		&ExtensionOptionsWeb3Tx{},
+		&ExtensionOptionDynamicFeeTx{},
 	)
 }

types/dynamic_fee.go

@@ -0,0 +1,11 @@
+package types
+
+import (
+	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
+)
+
+// HasDynamicFeeExtensionOption returns true if the tx implements the `ExtensionOptionDynamicFeeTx` extension option.
+func HasDynamicFeeExtensionOption(any *codectypes.Any) bool {
+	_, ok := any.GetCachedValue().(*ExtensionOptionDynamicFeeTx)
+	return ok
+}

types/dynamic_fee.pb.go

@@ -0,0 +1,321 @@
+// Code generated by protoc-gen-gogo. DO NOT EDIT.
+// source: ethermint/types/v1/dynamic_fee.proto
+
+package types
+
+import (
+	fmt "fmt"
+	github_com_cosmos_cosmos_sdk_types "github.com/cosmos/cosmos-sdk/types"
+	_ "github.com/gogo/protobuf/gogoproto"
+	proto "github.com/gogo/protobuf/proto"
+	io "io"
+	math "math"
+	math_bits "math/bits"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
+
+// ExtensionOptionDynamicFeeTx is an extension option that specify the maxPrioPrice for cosmos tx
+type ExtensionOptionDynamicFeeTx struct {
+	// the same as `max_priority_fee_per_gas` in eip-1559 spec
+	MaxPriorityPrice github_com_cosmos_cosmos_sdk_types.Int `protobuf:"bytes,1,opt,name=max_priority_price,json=maxPriorityPrice,proto3,customtype=github.com/cosmos/cosmos-sdk/types.Int" json:"max_priority_price"`
+}
+
+func (m *ExtensionOptionDynamicFeeTx) Reset()         { *m = ExtensionOptionDynamicFeeTx{} }
+func (m *ExtensionOptionDynamicFeeTx) String() string { return proto.CompactTextString(m) }
+func (*ExtensionOptionDynamicFeeTx) ProtoMessage()    {}
+func (*ExtensionOptionDynamicFeeTx) Descriptor() ([]byte, []int) {
+	return fileDescriptor_9d7cf05c9992c480, []int{0}
+}
+func (m *ExtensionOptionDynamicFeeTx) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *ExtensionOptionDynamicFeeTx) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_ExtensionOptionDynamicFeeTx.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *ExtensionOptionDynamicFeeTx) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ExtensionOptionDynamicFeeTx.Merge(m, src)
+}
+func (m *ExtensionOptionDynamicFeeTx) XXX_Size() int {
+	return m.Size()
+}
+func (m *ExtensionOptionDynamicFeeTx) XXX_DiscardUnknown() {
+	xxx_messageInfo_ExtensionOptionDynamicFeeTx.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ExtensionOptionDynamicFeeTx proto.InternalMessageInfo
+
+func init() {
+	proto.RegisterType((*ExtensionOptionDynamicFeeTx)(nil), "ethermint.types.v1.ExtensionOptionDynamicFeeTx")
+}
+
+func init() {
+	proto.RegisterFile("ethermint/types/v1/dynamic_fee.proto", fileDescriptor_9d7cf05c9992c480)
+}
+
+var fileDescriptor_9d7cf05c9992c480 = []byte{
+	// 232 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x52, 0x49, 0x2d, 0xc9, 0x48,
+	0x2d, 0xca, 0xcd, 0xcc, 0x2b, 0xd1, 0x2f, 0xa9, 0x2c, 0x48, 0x2d, 0xd6, 0x2f, 0x33, 0xd4, 0x4f,
+	0xa9, 0xcc, 0x4b, 0xcc, 0xcd, 0x4c, 0x8e, 0x4f, 0x4b, 0x4d, 0xd5, 0x2b, 0x28, 0xca, 0x2f, 0xc9,
+	0x17, 0x12, 0x82, 0xab, 0xd2, 0x03, 0xab, 0xd2, 0x2b, 0x33, 0x94, 0x12, 0x49, 0xcf, 0x4f, 0xcf,
+	0x07, 0x4b, 0xeb, 0x83, 0x58, 0x10, 0x95, 0x4a, 0xd5, 0x5c, 0xd2, 0xae, 0x15, 0x25, 0xa9, 0x79,
+	0xc5, 0x99, 0xf9, 0x79, 0xfe, 0x05, 0x25, 0x99, 0xf9, 0x79, 0x2e, 0x10, 0xd3, 0xdc, 0x52, 0x53,
+	0x43, 0x2a, 0x84, 0x62, 0xb8, 0x84, 0x72, 0x13, 0x2b, 0xe2, 0x0b, 0x8a, 0x32, 0xf3, 0x8b, 0x32,
+	0x4b, 0x2a, 0x41, 0x8c, 0xe4, 0x54, 0x09, 0x46, 0x05, 0x46, 0x0d, 0x4e, 0x27, 0xbd, 0x13, 0xf7,
+	0xe4, 0x19, 0x6e, 0xdd, 0x93, 0x57, 0x4b, 0xcf, 0x2c, 0xc9, 0x28, 0x4d, 0xd2, 0x4b, 0xce, 0xcf,
+	0xd5, 0x4f, 0xce, 0x2f, 0xce, 0xcd, 0x2f, 0x86, 0x52, 0xba, 0xc5, 0x29, 0xd9, 0x10, 0x57, 0xea,
+	0x79, 0xe6, 0x95, 0x04, 0x09, 0xe4, 0x26, 0x56, 0x04, 0x40, 0x0d, 0x0a, 0x00, 0x99, 0xe3, 0x64,
+	0x75, 0xe2, 0x91, 0x1c, 0xe3, 0x85, 0x47, 0x72, 0x8c, 0x0f, 0x1e, 0xc9, 0x31, 0x4e, 0x78, 0x2c,
+	0xc7, 0x70, 0xe1, 0xb1, 0x1c, 0xc3, 0x8d, 0xc7, 0x72, 0x0c, 0x51, 0x0a, 0x48, 0x66, 0xa6, 0x96,
+	0x81, 0x8c, 0x44, 0xf3, 0x77, 0x12, 0x1b, 0xd8, 0xfd, 0xc6, 0x80, 0x00, 0x00, 0x00, 0xff, 0xff,
+	0x5c, 0xa9, 0x04, 0x48, 0x11, 0x01, 0x00, 0x00,
+}
+
+func (m *ExtensionOptionDynamicFeeTx) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *ExtensionOptionDynamicFeeTx) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *ExtensionOptionDynamicFeeTx) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	{
+		size := m.MaxPriorityPrice.Size()
+		i -= size
+		if _, err := m.MaxPriorityPrice.MarshalTo(dAtA[i:]); err != nil {
+			return 0, err
+		}
+		i = encodeVarintDynamicFee(dAtA, i, uint64(size))
+	}
+	i--
+	dAtA[i] = 0xa
+	return len(dAtA) - i, nil
+}
+
+func encodeVarintDynamicFee(dAtA []byte, offset int, v uint64) int {
+	offset -= sovDynamicFee(v)
+	base := offset
+	for v >= 1<<7 {
+		dAtA[offset] = uint8(v&0x7f | 0x80)
+		v >>= 7
+		offset++
+	}
+	dAtA[offset] = uint8(v)
+	return base
+}
+func (m *ExtensionOptionDynamicFeeTx) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = m.MaxPriorityPrice.Size()
+	n += 1 + l + sovDynamicFee(uint64(l))
+	return n
+}
+
+func sovDynamicFee(x uint64) (n int) {
+	return (math_bits.Len64(x|1) + 6) / 7
+}
+func sozDynamicFee(x uint64) (n int) {
+	return sovDynamicFee(uint64((x << 1) ^ uint64((int64(x) >> 63))))
+}
+func (m *ExtensionOptionDynamicFeeTx) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowDynamicFee
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: ExtensionOptionDynamicFeeTx: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: ExtensionOptionDynamicFeeTx: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field MaxPriorityPrice", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowDynamicFee
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthDynamicFee
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthDynamicFee
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := m.MaxPriorityPrice.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipDynamicFee(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthDynamicFee
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func skipDynamicFee(dAtA []byte) (n int, err error) {
+	l := len(dAtA)
+	iNdEx := 0
+	depth := 0
+	for iNdEx < l {
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return 0, ErrIntOverflowDynamicFee
+			}
+			if iNdEx >= l {
+				return 0, io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		wireType := int(wire & 0x7)
+		switch wireType {
+		case 0:
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowDynamicFee
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				iNdEx++
+				if dAtA[iNdEx-1] < 0x80 {
+					break
+				}
+			}
+		case 1:
+			iNdEx += 8
+		case 2:
+			var length int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return 0, ErrIntOverflowDynamicFee
+				}
+				if iNdEx >= l {
+					return 0, io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				length |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if length < 0 {
+				return 0, ErrInvalidLengthDynamicFee
+			}
+			iNdEx += length
+		case 3:
+			depth++
+		case 4:
+			if depth == 0 {
+				return 0, ErrUnexpectedEndOfGroupDynamicFee
+			}
+			depth--
+		case 5:
+			iNdEx += 4
+		default:
+			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
+		}
+		if iNdEx < 0 {
+			return 0, ErrInvalidLengthDynamicFee
+		}
+		if depth == 0 {
+			return iNdEx, nil
+		}
+	}
+	return 0, io.ErrUnexpectedEOF
+}
+
+var (
+	ErrInvalidLengthDynamicFee        = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowDynamicFee          = fmt.Errorf("proto: integer overflow")
+	ErrUnexpectedEndOfGroupDynamicFee = fmt.Errorf("proto: unexpected end of group")
+)

x/evm/keeper/utils.go

@@ -15,11 +15,6 @@ import (
 	ethtypes "github.com/ethereum/go-ethereum/core/types"
 )
 
-// DefaultPriorityReduction is the default amount of price values required for 1 unit of priority.
-// Because priority is `int64` while price is `big.Int`, it's necessary to scale down the range to keep it more pratical.
-// The default value is the same as the `sdk.DefaultPowerReduction`.
-var DefaultPriorityReduction = sdk.DefaultPowerReduction
-
 // DeductTxCostsFromUserBalance it calculates the tx costs and deducts the fees
 // returns (effectiveFee, priority, error)
 func (k Keeper) DeductTxCostsFromUserBalance(
@@ -91,7 +86,7 @@ func (k Keeper) DeductTxCostsFromUserBalance(
 	if baseFee != nil {
 		tipPrice = new(big.Int).Sub(tipPrice, baseFee)
 	}
-	priorityBig := new(big.Int).Quo(tipPrice, DefaultPriorityReduction.BigInt())
+	priorityBig := new(big.Int).Quo(tipPrice, evmtypes.DefaultPriorityReduction.BigInt())
 	if !priorityBig.IsInt64() {
 		priority = math.MaxInt64
 	} else {

x/evm/types/dynamic_fee_tx.go

@@ -7,7 +7,6 @@ import (
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/common/math"
 	ethtypes "github.com/ethereum/go-ethereum/core/types"
 
 	"github.com/evmos/ethermint/types"
@@ -267,7 +266,7 @@ func (tx DynamicFeeTx) Cost() *big.Int {
 
 // EffectiveGasPrice returns the effective gas price
 func (tx *DynamicFeeTx) EffectiveGasPrice(baseFee *big.Int) *big.Int {
-	return math.BigMin(new(big.Int).Add(tx.GasTipCap.BigInt(), baseFee), tx.GasFeeCap.BigInt())
+	return EffectiveGasPrice(baseFee, tx.GasFeeCap.BigInt(), tx.GasTipCap.BigInt())
 }
 
 // EffectiveFee returns effective_gasprice * gaslimit.

x/evm/types/evm.pb.go

@@ -117,7 +117,7 @@ func (m *Params) GetAllowUnprotectedTxs() bool {
 	return false
 }
 
-// ChainConfig defines the Ethereum ChainConfig parameters using *sdkmath.Int values
+// ChainConfig defines the Ethereum ChainConfig parameters using *sdk.Int values
 // instead of *big.Int.
 type ChainConfig struct {
 	// Homestead switch block (nil no fork, 0 = already homestead)

x/evm/types/utils.go

@@ -2,6 +2,7 @@ package types
 
 import (
 	"fmt"
+	"math/big"
 
 	"github.com/gogo/protobuf/proto"
 
@@ -9,9 +10,15 @@ import (
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/common/math"
 	"github.com/ethereum/go-ethereum/crypto"
 )
 
+// DefaultPriorityReduction is the default amount of price values required for 1 unit of priority.
+// Because priority is `int64` while price is `big.Int`, it's necessary to scale down the range to keep it more pratical.
+// The default value is the same as the `sdk.DefaultPowerReduction`.
+var DefaultPriorityReduction = sdk.DefaultPowerReduction
+
 var EmptyCodeHash = crypto.Keccak256(nil)
 
 // DecodeTxResponse decodes an protobuf-encoded byte slice into TxResponse
@@ -88,3 +95,9 @@ func BinSearch(lo, hi uint64, executable func(uint64) (bool, *MsgEthereumTxRespo
 	}
 	return hi, nil
 }
+
+// EffectiveGasPrice compute the effective gas price based on eip-1159 rules
+// `effectiveGasPrice = min(baseFee + tipCap, feeCap)`
+func EffectiveGasPrice(baseFee *big.Int, feeCap *big.Int, tipCap *big.Int) *big.Int {
+	return math.BigMin(new(big.Int).Add(tipCap, baseFee), feeCap)
+}

x/feemarket/keeper/integration_test.go

@@ -126,7 +126,7 @@ var _ = Describe("Feemarket", func() {
 
 		Context("with MinGasPrices (feemarket param) < min-gas-prices (local)", func() {
 			BeforeEach(func() {
-				privKey, msg = setupTestWithContext("5", sdk.NewDec(3), sdk.ZeroInt())
+				privKey, msg = setupTestWithContext("5", sdk.NewDec(3), sdk.NewInt(5))
 			})
 			Context("during CheckTx", func() {
 				It("should reject transactions with gasPrice < MinGasPrices", func() {
@@ -139,7 +139,7 @@ var _ = Describe("Feemarket", func() {
 					).To(BeTrue(), res.GetLog())
 				})
 
-				It("should reject transactions with MinGasPrices < gasPrice < min-gas-prices", func() {
+				It("should reject transactions with MinGasPrices < gasPrice < baseFee", func() {
 					gasPrice := sdkmath.NewInt(4)
 					res := checkTx(privKey, &gasPrice, &msg)
 					Expect(res.IsOK()).To(Equal(false), "transaction should have failed")
@@ -149,7 +149,7 @@ var _ = Describe("Feemarket", func() {
 					).To(BeTrue(), res.GetLog())
 				})
 
-				It("should accept transactions with gasPrice > min-gas-prices", func() {
+				It("should accept transactions with gasPrice >= baseFee", func() {
 					gasPrice := sdkmath.NewInt(5)
 					res := checkTx(privKey, &gasPrice, &msg)
 					Expect(res.IsOK()).To(Equal(true), "transaction should have succeeded", res.GetLog())
@@ -167,13 +167,16 @@ var _ = Describe("Feemarket", func() {
 					).To(BeTrue(), res.GetLog())
 				})
 
-				It("should accept transactions with MinGasPrices < gasPrice < than min-gas-prices", func() {
+				It("should reject transactions with MinGasPrices < gasPrice < baseFee", func() {
 					gasPrice := sdkmath.NewInt(4)
-					res := deliverTx(privKey, &gasPrice, &msg)
+					res := checkTx(privKey, &gasPrice, &msg)
-					Expect(res.IsOK()).To(Equal(true), "transaction should have succeeded", res.GetLog())
+					Expect(res.IsOK()).To(Equal(false), "transaction should have failed")
+					Expect(
+						strings.Contains(res.GetLog(),
+							"insufficient fee"),
+					).To(BeTrue(), res.GetLog())
 				})
-
+				It("should accept transactions with gasPrice >= baseFee", func() {
-				It("should accept transactions with gasPrice >= min-gas-prices", func() {
 					gasPrice := sdkmath.NewInt(5)
 					res := deliverTx(privKey, &gasPrice, &msg)
 					Expect(res.IsOK()).To(Equal(true), "transaction should have succeeded", res.GetLog())