forked from osmosis-labs/osmosis
/
module.go
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/
module.go
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/*
The txfees modules allows nodes to easily support many
tokens for usage as txfees, while letting node operators
only specify their tx fee parameters for a single "base" asset.
- Adds a whitelist of tokens that can be used as fees on the chain.
- Any token not on this list cannot be provided as a tx fee.
- Adds a new SDK message for creating governance proposals for adding new TxFee denoms.
*/
package txfees
import (
"context"
"encoding/json"
"fmt"
"github.com/gorilla/mux"
"github.com/grpc-ecosystem/grpc-gateway/runtime"
"github.com/spf13/cobra"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/codec"
cdctypes "github.com/cosmos/cosmos-sdk/codec/types"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/module"
"github.com/Anmol1696/osmosis/v11/x/txfees/client/cli"
"github.com/Anmol1696/osmosis/v11/x/txfees/keeper"
"github.com/Anmol1696/osmosis/v11/x/txfees/types"
)
var (
_ module.AppModule = AppModule{}
_ module.AppModuleBasic = AppModuleBasic{}
)
const ModuleName = types.ModuleName
// ----------------------------------------------------------------------------
// AppModuleBasic
// ----------------------------------------------------------------------------
// AppModuleBasic implements the AppModuleBasic interface for the txfees module.
type AppModuleBasic struct {
}
func NewAppModuleBasic() AppModuleBasic {
return AppModuleBasic{}
}
// Name returns the txfees module's name.
func (AppModuleBasic) Name() string {
return types.ModuleName
}
func (AppModuleBasic) RegisterLegacyAminoCodec(cdc *codec.LegacyAmino) {
types.RegisterLegacyAminoCodec(cdc)
}
// RegisterInterfaces registers the module's interface types.
func (a AppModuleBasic) RegisterInterfaces(reg cdctypes.InterfaceRegistry) {
types.RegisterInterfaces(reg)
}
// DefaultGenesis returns the txfees module's default genesis state.
func (AppModuleBasic) DefaultGenesis(cdc codec.JSONCodec) json.RawMessage {
return cdc.MustMarshalJSON(types.DefaultGenesis())
}
// ValidateGenesis performs genesis state validation for the txfee module.
func (AppModuleBasic) ValidateGenesis(cdc codec.JSONCodec, config client.TxEncodingConfig, bz json.RawMessage) error {
var genState types.GenesisState
if err := cdc.UnmarshalJSON(bz, &genState); err != nil {
return fmt.Errorf("failed to unmarshal %s genesis state: %w", types.ModuleName, err)
}
return genState.Validate()
}
// RegisterRESTRoutes is a no-op. Needed to meet AppModuleBasic interface.
func (AppModuleBasic) RegisterRESTRoutes(clientCtx client.Context, rtr *mux.Router) {}
// RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the module.
func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux) {
//nolint:errcheck
types.RegisterQueryHandlerClient(context.Background(), mux, types.NewQueryClient(clientCtx))
}
// GetTxCmd returns the txfees module's root tx command.
func (a AppModuleBasic) GetTxCmd() *cobra.Command {
return cli.NewTxCmd()
}
// GetQueryCmd returns the txfees module's root query command.
func (AppModuleBasic) GetQueryCmd() *cobra.Command {
return cli.GetQueryCmd()
}
// ----------------------------------------------------------------------------
// AppModule
// ----------------------------------------------------------------------------
// AppModule implements the AppModule interface for the txfees module.
type AppModule struct {
AppModuleBasic
keeper keeper.Keeper
}
func NewAppModule(keeper keeper.Keeper) AppModule {
return AppModule{
AppModuleBasic: NewAppModuleBasic(),
keeper: keeper,
}
}
// Name returns the txfees module's name.
func (am AppModule) Name() string {
return am.AppModuleBasic.Name()
}
// Route returns the txfees module's message routing key.
func (am AppModule) Route() sdk.Route {
return sdk.Route{}
}
// QuerierRoute returns the txfees module's query routing key.
func (AppModule) QuerierRoute() string { return "" }
// LegacyQuerierHandler is a no-op. Needed to meet AppModule interface.
func (am AppModule) LegacyQuerierHandler(legacyQuerierCdc *codec.LegacyAmino) sdk.Querier {
return func(sdk.Context, []string, abci.RequestQuery) ([]byte, error) {
return nil, fmt.Errorf("legacy querier not supported for the x/%s module", types.ModuleName)
}
}
// RegisterServices registers a GRPC query service to respond to the
// module-specific GRPC queries.
func (am AppModule) RegisterServices(cfg module.Configurator) {
types.RegisterQueryServer(cfg.QueryServer(), keeper.NewQuerier(am.keeper))
}
// RegisterInvariants registers the txfees module's invariants.
func (am AppModule) RegisterInvariants(_ sdk.InvariantRegistry) {}
// InitGenesis performs the txfees module's genesis initialization It returns
// no validator updates.
func (am AppModule) InitGenesis(ctx sdk.Context, cdc codec.JSONCodec, gs json.RawMessage) []abci.ValidatorUpdate {
var genState types.GenesisState
// Initialize global index to index in genesis state
cdc.MustUnmarshalJSON(gs, &genState)
if genState.Basedenom == "" {
panic("genState.Basedenom must be set for txfees")
}
am.keeper.InitGenesis(ctx, genState)
return []abci.ValidatorUpdate{}
}
// ExportGenesis returns the txfees module's exported genesis state as raw JSON bytes.
func (am AppModule) ExportGenesis(ctx sdk.Context, cdc codec.JSONCodec) json.RawMessage {
genState := am.keeper.ExportGenesis(ctx)
return cdc.MustMarshalJSON(genState)
}
// BeginBlock executes all ABCI BeginBlock logic respective to the txfees module.
func (am AppModule) BeginBlock(_ sdk.Context, _ abci.RequestBeginBlock) {}
// EndBlock executes all ABCI EndBlock logic respective to the txfees module. It
// returns no validator updates.
func (am AppModule) EndBlock(_ sdk.Context, _ abci.RequestEndBlock) []abci.ValidatorUpdate {
return []abci.ValidatorUpdate{}
}
// ConsensusVersion implements AppModule/ConsensusVersion.
func (AppModule) ConsensusVersion() uint64 { return 1 }