package rest import ( "fmt" "net/http" "github.com/gorilla/mux" "github.com/cosmos/cosmos-sdk/client/context" "github.com/cosmos/cosmos-sdk/types/rest" "github.com/kava-labs/kava/x/bep3/types" ) const restSwapID = "swap-id" const restDenom = "denom" func registerQueryRoutes(cliCtx context.CLIContext, r *mux.Router) { r.HandleFunc(fmt.Sprintf("/%s/swap/{%s}", types.ModuleName, restSwapID), queryAtomicSwapHandlerFn(cliCtx)).Methods("GET") r.HandleFunc(fmt.Sprintf("/%s/swaps", types.ModuleName), queryAtomicSwapsHandlerFn(cliCtx)).Methods("GET") r.HandleFunc(fmt.Sprintf("/%s/supply/{%s}", types.ModuleName, restDenom), queryAssetSupplyHandlerFn(cliCtx)).Methods("GET") r.HandleFunc(fmt.Sprintf("/%s/parameters", types.ModuleName), queryParamsHandlerFn(cliCtx)).Methods("GET") } func queryAtomicSwapHandlerFn(cliCtx context.CLIContext) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { // Parse the query height cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r) if !ok { return } // Prepare params for querier vars := mux.Vars(r) if len(vars[restSwapID]) == 0 { err := fmt.Errorf("%s required but not specified", restSwapID) rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } swapID, err := types.HexToBytes(vars[restSwapID]) if err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } bz, err := cliCtx.Codec.MarshalJSON(types.QueryAtomicSwapByID{SwapID: swapID}) if err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } // Query res, height, err := cliCtx.QueryWithData(fmt.Sprintf("/custom/%s/%s", types.ModuleName, types.QueryGetAtomicSwap), bz) if err != nil { rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error()) return } // Decode and return results cliCtx = cliCtx.WithHeight(height) var swap types.AtomicSwap err = cliCtx.Codec.UnmarshalJSON(res, &swap) if err != nil { rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error()) return } rest.PostProcessResponse(w, cliCtx, cliCtx.Codec.MustMarshalJSON(swap)) } } func queryAtomicSwapsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { // Parse the query height cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r) if !ok { return } route := fmt.Sprintf("custom/%s/%s", types.ModuleName, types.QueryGetAtomicSwaps) res, height, err := cliCtx.QueryWithData(route, nil) if err != nil { rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error()) return } // Decode and return results cliCtx = cliCtx.WithHeight(height) var swaps types.AtomicSwaps err = cliCtx.Codec.UnmarshalJSON(res, &swaps) if err != nil { rest.WriteErrorResponse(w, http.StatusNotFound, err.Error()) return } // using empty slice so json returns [] instead of null when there's no swaps sliceSwaps := types.AtomicSwaps{} for _, s := range swaps { sliceSwaps = append(sliceSwaps, s) } rest.PostProcessResponse(w, cliCtx, cliCtx.Codec.MustMarshalJSON(sliceSwaps)) } } func queryAssetSupplyHandlerFn(cliCtx context.CLIContext) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { // Parse the query height cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r) if !ok { return } // Prepare params for querier vars := mux.Vars(r) denom := []byte(vars[restDenom]) params := types.NewQueryAssetSupply(denom) bz, err := cliCtx.Codec.MarshalJSON(params) if err != nil { rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error()) return } // Query res, height, err := cliCtx.QueryWithData(fmt.Sprintf("/custom/%s/%s", types.ModuleName, types.QueryGetAssetSupply), bz) if err != nil { rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error()) return } // Decode and return results cliCtx = cliCtx.WithHeight(height) var assetSupply types.AssetSupply err = cliCtx.Codec.UnmarshalJSON(res, &assetSupply) if err != nil { rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error()) return } rest.PostProcessResponse(w, cliCtx, cliCtx.Codec.MustMarshalJSON(assetSupply)) } } func queryParamsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc { return func(w http.ResponseWriter, r *http.Request) { cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r) if !ok { return } route := fmt.Sprintf("custom/%s/%s", types.QuerierRoute, types.QueryGetParams) res, height, err := cliCtx.QueryWithData(route, nil) if err != nil { rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error()) return } cliCtx = cliCtx.WithHeight(height) rest.PostProcessResponse(w, cliCtx, res) } }