diff --git a/CHANGELOG.md b/CHANGELOG.md index 245b287483bb..8f059ebd001a 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -39,6 +39,7 @@ Ref: https://keepachangelog.com/en/1.0.0/ ### Features +* [\#10393](https://github.com/cosmos/cosmos-sdk/pull/10393) Add `HasSupply` method to bank keeper to ensure that input denom actually exists on chain. * [\#9933](https://github.com/cosmos/cosmos-sdk/pull/9933) Introduces the notion of a Cosmos "Scalar" type, which would just be simple aliases that give human-understandable meaning to the underlying type, both in Go code and in Proto definitions. * [\#9884](https://github.com/cosmos/cosmos-sdk/pull/9884) Provide a new gRPC query handler, `/cosmos/params/v1beta1/subspaces`, that allows the ability to query for all registered subspaces and their respective keys. * [\#9860](https://github.com/cosmos/cosmos-sdk/pull/9860) Emit transaction fee in ante handler fee decorator. The event type is `tx` and the attribute is `fee`. diff --git a/x/bank/keeper/keeper.go b/x/bank/keeper/keeper.go index 50aec230dda1..b5f80c5f6dff 100644 --- a/x/bank/keeper/keeper.go +++ b/x/bank/keeper/keeper.go @@ -26,6 +26,7 @@ type Keeper interface { ExportGenesis(sdk.Context) *types.GenesisState GetSupply(ctx sdk.Context, denom string) sdk.Coin + HasSupply(ctx sdk.Context, denom string) bool GetPaginatedTotalSupply(ctx sdk.Context, pagination *query.PageRequest) (sdk.Coins, *query.PageResponse, error) IterateTotalSupply(ctx sdk.Context, cb func(sdk.Coin) bool) GetDenomMetaData(ctx sdk.Context, denom string) (types.Metadata, bool) @@ -215,6 +216,13 @@ func (k BaseKeeper) GetSupply(ctx sdk.Context, denom string) sdk.Coin { } } +// HasSupply checks if the supply coin exists in store. +func (k BaseKeeper) HasSupply(ctx sdk.Context, denom string) bool { + store := ctx.KVStore(k.storeKey) + supplyStore := prefix.NewStore(store, types.SupplyKey) + return supplyStore.Has([]byte(denom)) +} + // GetDenomMetaData retrieves the denomination metadata. returns the metadata and true if the denom exists, // false otherwise. func (k BaseKeeper) GetDenomMetaData(ctx sdk.Context, denom string) (types.Metadata, bool) { diff --git a/x/bank/keeper/keeper_test.go b/x/bank/keeper/keeper_test.go index 52d0dc1338e3..63f347a6fba5 100644 --- a/x/bank/keeper/keeper_test.go +++ b/x/bank/keeper/keeper_test.go @@ -1119,6 +1119,7 @@ func (suite *IntegrationTestSuite) TestBalanceTrackingEvents() { } // check balance and supply tracking + suite.Require().True(suite.app.BankKeeper.HasSupply(suite.ctx, "utxo")) savedSupply := suite.app.BankKeeper.GetSupply(suite.ctx, "utxo") utxoSupply := savedSupply suite.Require().Equal(utxoSupply.Amount, supply.AmountOf("utxo"))