package keeper import ( "fmt" "github.com/cosmos/cosmos-sdk/codec" sdk "github.com/cosmos/cosmos-sdk/types" abci "github.com/tendermint/tendermint/abci/types" "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 sdk.Error) { switch path[0] { case types.QueryCurrentPrice: return queryCurrentPrice(ctx, req, keeper) case types.QueryRawPrices: return queryRawPrices(ctx, req, keeper) case types.QueryMarkets: return queryMarkets(ctx, req, keeper) case types.QueryGetParams: return queryGetParams(ctx, req, keeper) default: return nil, sdk.ErrUnknownRequest("unknown pricefeed query endpoint") } } } func queryCurrentPrice(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) (res []byte, sdkErr sdk.Error) { var requestParams types.QueryPricesParams err := keeper.cdc.UnmarshalJSON(req.Data, &requestParams) if err != nil { return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err)) } _, found := keeper.GetMarket(ctx, requestParams.MarketID) if !found { return []byte{}, sdk.ErrUnknownRequest("asset not found") } currentPrice, sdkErr := keeper.GetCurrentPrice(ctx, requestParams.MarketID) if sdkErr != nil { return nil, sdkErr } bz, err := codec.MarshalJSONIndent(keeper.cdc, currentPrice) if err != nil { panic("could not marshal result to JSON") } return bz, nil } func queryRawPrices(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) (res []byte, sdkErr sdk.Error) { var requestParams types.QueryPricesParams err := keeper.cdc.UnmarshalJSON(req.Data, &requestParams) if err != nil { return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err)) } _, found := keeper.GetMarket(ctx, requestParams.MarketID) if !found { return []byte{}, sdk.ErrUnknownRequest("asset not found") } rawPrices := keeper.GetRawPrices(ctx, requestParams.MarketID) bz, err := codec.MarshalJSONIndent(keeper.cdc, rawPrices) if err != nil { panic("could not marshal result to JSON") } return bz, nil } func queryMarkets(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) (res []byte, sdkErr sdk.Error) { markets := keeper.GetMarkets(ctx) bz, err := codec.MarshalJSONIndent(keeper.cdc, markets) if err != nil { panic("could not marshal result to JSON") } return bz, nil } // query params in the auction store func queryGetParams(ctx sdk.Context, req abci.RequestQuery, keeper Keeper) ([]byte, sdk.Error) { // Get params params := keeper.GetParams(ctx) // Encode results bz, err := codec.MarshalJSONIndent(keeper.cdc, params) if err != nil { return nil, sdk.ErrInternal(sdk.AppendMsgToErr("could not marshal result to JSON", err.Error())) } return bz, nil }