refactored queries, ante/post handlers and DenomResolver

proto/feemarket/feemarket/v1/genesis.proto

@@ -22,9 +22,9 @@ message GenesisState {
 // the current base fee, learning rate, and block utilization within the
 // specified AIMD window.
 message State {
-  // BaseFee is the current base fee. This is denominated in the fee per gas
+  // BaseGasPrice is the current base fee. This is denominated in the fee per gas
   // unit.
-  string base_fee = 1 [
+  string base_gas_price = 1 [
     (cosmos_proto.scalar) = "cosmos.Dec",
     (gogoproto.customtype) = "cosmossdk.io/math.LegacyDec",
     (gogoproto.nullable) = false

proto/feemarket/feemarket/v1/params.proto

@@ -44,9 +44,9 @@ message Params {
     (gogoproto.nullable) = false
   ];
 
-  // MinBaseFee determines the initial base fee of the module and the global
-  // minimum for the network. This is denominated in fee per gas unit.
-  string min_base_fee = 5 [
+  // MinBaseGasPrice determines the initial gas price of the module and the global
+  // minimum for the network.
+  string min_base_gas_price = 5 [
     (cosmos_proto.scalar) = "cosmos.Dec",
     (gogoproto.customtype) = "cosmossdk.io/math.LegacyDec",
     (gogoproto.nullable) = false

proto/feemarket/feemarket/v1/query.proto

@@ -26,10 +26,19 @@ service Query {
     };
   };
 
-  // BaseFee returns the current feemarket module base fee.
-  rpc BaseFee(BaseFeeRequest) returns (BaseFeeResponse) {
+  // GasPrice returns the current feemarket module gas price
+  // for specified denom.
+  rpc GasPrice(GasPriceRequest) returns (GasPriceResponse) {
     option (google.api.http) = {
-      get : "/feemarket/v1/base_fee"
+      get : "/feemarket/v1/gas_price/{denom}"
+    };
+  };
+
+  // GasPrices returns the current feemarket module list of gas prices
+  // in all available denoms.
+  rpc GasPrices(GasPricesRequest) returns (GasPricesResponse) {
+    option (google.api.http) = {
+      get : "/feemarket/v1/gas_prices"
     };
   };
 }
@@ -46,14 +55,31 @@ message StateRequest {}
 // StateResponse is the response type for the Query/State RPC method.
 message StateResponse { State state = 1 [ (gogoproto.nullable) = false ]; }
 
-// BaseFeeRequest is the request type for the Query/BaseFee RPC method.
-message BaseFeeRequest {}
+// GasPriceRequest is the request type for the Query/GasPrice RPC method.
+message GasPriceRequest {
+  // denom we are querying gas price in
+  string denom = 1;
+}
+
+// GasPriceResponse is the response type for the Query/GasPrice RPC method.
+// Returns a gas price in specified denom.
+message GasPriceResponse {
+  cosmos.base.v1beta1.DecCoin price = 1 [
+    (gogoproto.nullable) = false,
+    (amino.dont_omitempty) = true
+  ];
+}
 
-// StateResponse is the response type for the Query/BaseFee RPC method.
-message BaseFeeResponse {
-  repeated cosmos.base.v1beta1.DecCoin fees = 1 [
+// GasPriceRequest is the request type for the Query/GasPrices RPC method.
+message GasPricesRequest {
+}
+
+// GasPricesResponse is the response type for the Query/GasPrices RPC method.
+// Returns a gas price in all available denoms.
+message GasPricesResponse {
+  repeated cosmos.base.v1beta1.DecCoin prices = 1 [
     (gogoproto.nullable) = false,
     (amino.dont_omitempty) = true,
     (gogoproto.castrepeated) = "github.com/cosmos/cosmos-sdk/types.DecCoins"
   ];
-}
+}

tests/e2e/e2e_test.go

@@ -17,8 +17,8 @@ import (
 )
 
 var (
-	minBaseFee = sdkmath.LegacyNewDec(10)
-	baseFee    = sdkmath.LegacyNewDec(1000000)
+	minBaseGasPrice = sdkmath.LegacyNewDec(10)
+	baseGasPrice    = sdkmath.LegacyNewDec(1000000)
 
 	// config params
 	numValidators = 3
@@ -42,7 +42,7 @@ var (
 				Beta:                   feemarkettypes.DefaultBeta,
 				Theta:                  feemarkettypes.DefaultTheta,
 				Delta:                  feemarkettypes.DefaultDelta,
-				MinBaseFee:             minBaseFee,
+				MinBaseGasPrice:        minBaseGasPrice,
 				MinLearningRate:        feemarkettypes.DefaultMinLearningRate,
 				MaxLearningRate:        feemarkettypes.DefaultMaxLearningRate,
 				TargetBlockUtilization: feemarkettypes.DefaultTargetBlockUtilization / 4,
@@ -56,7 +56,7 @@ var (
 		{
 			Key: "app_state.feemarket.state",
 			Value: feemarkettypes.State{
-				BaseFee:      baseFee,
+				BaseGasPrice: baseGasPrice,
 				LearningRate: feemarkettypes.DefaultMaxLearningRate,
 				Window:       make([]uint64, feemarkettypes.DefaultWindow),
 				Index:        0,

tests/e2e/setup.go

@@ -149,7 +149,7 @@ func (s *TestSuite) QueryState() types.State {
 	return resp.State
 }
 
-func (s *TestSuite) QueryBaseFee() sdk.DecCoins {
+func (s *TestSuite) QueryDefaultGasPrice() sdk.DecCoin {
 	s.T().Helper()
 
 	// get grpc address
@@ -162,10 +162,12 @@ func (s *TestSuite) QueryBaseFee() sdk.DecCoins {
 	// create the oracle client
 	c := types.NewQueryClient(cc)
 
-	resp, err := c.BaseFee(context.Background(), &types.BaseFeeRequest{})
+	resp, err := c.GasPrice(context.Background(), &types.GasPriceRequest{
+		Denom: sdk.DefaultBondDenom,
+	})
 	s.Require().NoError(err)
 
-	return resp.Fees
+	return resp.GetPrice()
 }
 
 // QueryValidators queries for all the network's validators

tests/e2e/suite.go

@@ -5,8 +5,6 @@ import (
 	"math/rand"
 	"sync"
 
-	feemarkettypes "github.com/skip-mev/feemarket/x/feemarket/types"
-
 	"cosmossdk.io/math"
 
 	"github.com/cosmos/cosmos-sdk/codec"
@@ -123,8 +121,8 @@ func (s *TestSuite) SetupSubTest() {
 
 	state := s.QueryState()
 	s.T().Log("state at block height", height+1, ":", state.String())
-	fee := s.QueryBaseFee()
-	s.T().Log("fee at block height", height+1, ":", fee.String())
+	gasPrice := s.QueryDefaultGasPrice()
+	s.T().Log("gas price at block height", height+1, ":", gasPrice.String())
 }
 
 func (s *TestSuite) TestQueryParams() {
@@ -147,17 +145,17 @@ func (s *TestSuite) TestQueryState() {
 	})
 }
 
-func (s *TestSuite) TestQueryBaseFee() {
-	s.Run("query base fee", func() {
-		// query base fee
-		fees := s.QueryBaseFee()
+func (s *TestSuite) TestQueryGasPrice() {
+	s.Run("query gas price", func() {
+		// query gas price
+		gasPrice := s.QueryDefaultGasPrice()
 
 		// expect validate to pass
-		require.NoError(s.T(), fees.Validate(), fees)
+		require.NoError(s.T(), gasPrice.Validate(), gasPrice)
 	})
 }
 
-// TestSendTxDecrease tests that the feemarket will decrease until it hits the min base fee
+// TestSendTxDecrease tests that the feemarket will decrease until it hits the min gas price
 // when gas utilization is below the target block utilization.
 func (s *TestSuite) TestSendTxDecrease() {
 	// cast chain to cosmos-chain
@@ -169,16 +167,16 @@ func (s *TestSuite) TestSendTxDecrease() {
 
 	params := s.QueryParams()
 
-	baseFee := s.QueryBaseFee()
+	defaultGasPrice := s.QueryDefaultGasPrice()
 	gas := int64(200000)
-	minBaseFee := baseFee.MulDec(math.LegacyNewDec(gas))[0]
+	minBaseFee := sdk.NewDecCoinFromDec(defaultGasPrice.Denom, defaultGasPrice.Amount.Mul(math.LegacyNewDec(gas)))
 	minBaseFeeCoins := sdk.NewCoins(sdk.NewCoin(minBaseFee.Denom, minBaseFee.Amount.TruncateInt()))
 	sendAmt := int64(100000)
 
 	s.Run("expect fee market state to decrease", func() {
 		s.T().Log("performing sends...")
 		for {
-			// send with the exact expected fee
+			// send with the exact expected defaultGasPrice
 
 			wg := sync.WaitGroup{}
 			wg.Add(3)
@@ -232,10 +230,10 @@ func (s *TestSuite) TestSendTxDecrease() {
 			}()
 
 			wg.Wait()
-			fee := s.QueryBaseFee()
-			s.T().Log("base fee", fee.String())
+			gasPrice := s.QueryDefaultGasPrice()
+			s.T().Log("base defaultGasPrice", gasPrice.String())
 
-			if fee.AmountOf(feemarkettypes.DefaultFeeDenom).Equal(params.MinBaseFee) {
+			if gasPrice.Amount.Equal(params.MinBaseGasPrice) {
 				break
 			}
 		}
@@ -246,8 +244,8 @@ func (s *TestSuite) TestSendTxDecrease() {
 		s.Require().NoError(err)
 		s.WaitForHeight(s.chain.(*cosmos.CosmosChain), height+5)
 
-		fee := s.QueryBaseFee()
-		s.T().Log("base fee", fee.String())
+		gasPrice := s.QueryDefaultGasPrice()
+		s.T().Log("gas price", gasPrice.String())
 
 		amt, err := s.chain.GetBalance(context.Background(), s.user1.FormattedAddress(), minBaseFee.Denom)
 		s.Require().NoError(err)
@@ -266,16 +264,16 @@ func (s *TestSuite) TestSendTxIncrease() {
 	nodes := cosmosChain.Nodes()
 	s.Require().True(len(nodes) > 0)
 
-	baseFee := s.QueryBaseFee()
+	baseGasPrice := s.QueryDefaultGasPrice()
 	gas := int64(20000100)
 	sendAmt := int64(100)
 
-	s.Run("expect fee market fee to increase", func() {
+	s.Run("expect fee market gas price to increase", func() {
 		s.T().Log("performing sends...")
 		for {
-			// send with the exact expected fee
-			baseFee = s.QueryBaseFee()
-			minBaseFee := baseFee.MulDec(math.LegacyNewDec(gas))[0]
+			// send with the exact expected baseGasPrice
+			baseGasPrice = s.QueryDefaultGasPrice()
+			minBaseFee := sdk.NewDecCoinFromDec(baseGasPrice.Denom, baseGasPrice.Amount.Mul(math.LegacyNewDec(gas)))
 			// add headroom
 			minBaseFeeCoins := sdk.NewCoins(sdk.NewCoin(minBaseFee.Denom, minBaseFee.Amount.Add(math.LegacyNewDec(10)).TruncateInt()))
 
@@ -331,10 +329,10 @@ func (s *TestSuite) TestSendTxIncrease() {
 			}()
 
 			wg.Wait()
-			baseFee = s.QueryBaseFee()
-			s.T().Log("base fee", baseFee.String())
+			baseGasPrice = s.QueryDefaultGasPrice()
+			s.T().Log("gas price", baseGasPrice.String())
 
-			if baseFee.AmountOf(feemarkettypes.DefaultFeeDenom).GT(math.LegacyNewDec(1000000)) {
+			if baseGasPrice.Amount.GT(math.LegacyNewDec(1000000)) {
 				break
 			}
 		}
@@ -345,10 +343,10 @@ func (s *TestSuite) TestSendTxIncrease() {
 		s.Require().NoError(err)
 		s.WaitForHeight(s.chain.(*cosmos.CosmosChain), height+5)
 
-		fee := s.QueryBaseFee()
-		s.T().Log("base fee", fee.String())
+		gasPrice := s.QueryDefaultGasPrice()
+		s.T().Log("gas price", gasPrice.String())
 
-		amt, err := s.chain.GetBalance(context.Background(), s.user1.FormattedAddress(), baseFee[0].Denom)
+		amt, err := s.chain.GetBalance(context.Background(), s.user1.FormattedAddress(), gasPrice.Denom)
 		s.Require().NoError(err)
 		s.Require().True(amt.LT(math.NewInt(initBalance)), amt)
 		s.T().Log("balance:", amt.String())

tests/integration/integration_test.go

@@ -86,7 +86,7 @@ func (s *IntegrationTestSuite) TestParams() {
 			Beta:                   math.LegacyMustNewDecFromStr("0.1"),
 			Theta:                  math.LegacyMustNewDecFromStr("0.1"),
 			Delta:                  math.LegacyMustNewDecFromStr("0.1"),
-			MinBaseFee:             math.LegacyNewDec(10),
+			MinBaseGasPrice:        math.LegacyNewDec(10),
 			MinLearningRate:        math.LegacyMustNewDecFromStr("0.1"),
 			MaxLearningRate:        math.LegacyMustNewDecFromStr("0.1"),
 			TargetBlockUtilization: 5,

x/feemarket/ante/expected_keepers.go

@@ -46,7 +46,7 @@ type BankKeeper interface {
 //go:generate mockery --name FeeMarketKeeper --filename mock_feemarket_keeper.go
 type FeeMarketKeeper interface {
 	GetState(ctx sdk.Context) (feemarkettypes.State, error)
-	GetMinGasPrices(ctx sdk.Context) (sdk.DecCoins, error)
+	GetMinGasPrice(ctx sdk.Context, denom string) (sdk.DecCoin, error)
 	GetParams(ctx sdk.Context) (feemarkettypes.Params, error)
 	SetState(ctx sdk.Context, state feemarkettypes.State) error
 	SetParams(ctx sdk.Context, params feemarkettypes.Params) error