REST folder restructure & cleanup

x/auth/client/rest/query.go

@@ -0,0 +1,71 @@
+package rest
+
+import (
+	"encoding/hex"
+	"fmt"
+	"net/http"
+
+	"github.com/gorilla/mux"
+
+	"github.com/cosmos/cosmos-sdk/client/context"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/cosmos/cosmos-sdk/wire"
+	auth "github.com/cosmos/cosmos-sdk/x/auth/client/cli"
+)
+
+// register REST routes
+func RegisterRoutes(r *mux.Router, cdc *wire.Codec, storeName string) {
+	ctx := context.NewCoreContextFromViper()
+
+	r.HandleFunc(
+		"/accounts/{address}",
+		QueryAccountRequestHandler(storeName, cdc, auth.GetAccountDecoder(cdc), ctx),
+	).Methods("GET")
+}
+
+// query accountREST Handler
+func QueryAccountRequestHandler(storeName string, cdc *wire.Codec, decoder sdk.AccountDecoder, ctx context.CoreContext) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {
+		vars := mux.Vars(r)
+		addr := vars["address"]
+
+		bz, err := hex.DecodeString(addr)
+		if err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+			w.Write([]byte(err.Error()))
+			return
+		}
+		key := sdk.Address(bz)
+
+		res, err := ctx.Query(key, storeName)
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			w.Write([]byte(fmt.Sprintf("Could't query account. Error: %s", err.Error())))
+			return
+		}
+
+		// the query will return empty if there is no data for this account
+		if len(res) == 0 {
+			w.WriteHeader(http.StatusNoContent)
+			return
+		}
+
+		// decode the value
+		account, err := decoder(res)
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			w.Write([]byte(fmt.Sprintf("Could't parse query result. Result: %s. Error: %s", res, err.Error())))
+			return
+		}
+
+		// print out whole account
+		output, err := cdc.MarshalJSON(account)
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			w.Write([]byte(fmt.Sprintf("Could't marshall query result. Error: %s", err.Error())))
+			return
+		}
+
+		w.Write(output)
+	}
+}