package keeper import ( abci "github.com/tendermint/tendermint/abci/types" "github.com/cosmos/cosmos-sdk/codec" sdk "github.com/cosmos/cosmos-sdk/types" sdkerrors "github.com/cosmos/cosmos-sdk/types/errors" "github.com/kava-labs/kava/x/pricefeed/types" ) // NewQuerier is the module level router for state queries func NewQuerier(keeper Keeper) sdk.Querier { return func(ctx sdk.Context, path []string, req abci.RequestQuery) (res []byte, err error) { switch path[0] { case types.QueryPrice: return queryPrice(ctx, req, keeper) case types.QueryRawPrices: return queryRawPrices(ctx, req, keeper) case types.QueryOracles: return queryOracles(ctx, req, keeper) case types.QueryMarkets: return queryMarkets(ctx, req, keeper) case types.QueryGetParams: return queryGetParams(ctx, req, keeper) default: return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unknown %s query endpoint", types.ModuleName) } } } func queryPrice(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) (res []byte, sdkErr error) { var requestParams types.QueryWithMarketIDParams err := types.ModuleCdc.UnmarshalJSON(req.Data, &requestParams) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error()) } _, found := keeper.GetMarket(ctx, requestParams.MarketID) if !found { return []byte{}, sdkerrors.Wrap(types.ErrAssetNotFound, requestParams.MarketID) } currentPrice, sdkErr := keeper.GetCurrentPrice(ctx, requestParams.MarketID) if sdkErr != nil { return nil, sdkErr } bz, err := codec.MarshalJSONIndent(types.ModuleCdc, currentPrice) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryRawPrices(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) (res []byte, sdkErr error) { var requestParams types.QueryWithMarketIDParams err := types.ModuleCdc.UnmarshalJSON(req.Data, &requestParams) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error()) } _, found := keeper.GetMarket(ctx, requestParams.MarketID) if !found { return []byte{}, sdkerrors.Wrap(types.ErrAssetNotFound, requestParams.MarketID) } rawPrices, err := keeper.GetRawPrices(ctx, requestParams.MarketID) if err != nil { return nil, err } bz, err := codec.MarshalJSONIndent(types.ModuleCdc, rawPrices) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryOracles(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) (res []byte, sdkErr error) { var requestParams types.QueryWithMarketIDParams err := types.ModuleCdc.UnmarshalJSON(req.Data, &requestParams) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONUnmarshal, err.Error()) } oracles, err := keeper.GetOracles(ctx, requestParams.MarketID) if err != nil { return []byte{}, sdkerrors.Wrap(types.ErrAssetNotFound, requestParams.MarketID) } bz, err := codec.MarshalJSONIndent(types.ModuleCdc, oracles) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } func queryMarkets(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) (res []byte, sdkErr error) { markets := keeper.GetMarkets(ctx) bz, err := codec.MarshalJSONIndent(types.ModuleCdc, markets) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil } // query params in the pricefeed store func queryGetParams(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) ([]byte, error) { params := keeper.GetParams(ctx) // Encode results bz, err := codec.MarshalJSONIndent(types.ModuleCdc, params) if err != nil { return nil, sdkerrors.Wrap(sdkerrors.ErrJSONMarshal, err.Error()) } return bz, nil }