capitalize RpcError

rpc/lib/client/ws_client.go

@@ -422,8 +422,8 @@ func (c *WSClient) readRoutine() {
 			c.ErrorsCh <- err
 			continue
 		}
-		if response.Error != "" {
-			c.ErrorsCh <- errors.Errorf(response.Error)
+		if response.Error != nil {
+			c.ErrorsCh <- errors.New(response.Error.Message)
 			continue
 		}
 		c.Logger.Info("got response", "resp", response.Result)

rpc/lib/types/types.go

@@ -54,7 +54,7 @@ func ArrayToRequest(id string, method string, params []interface{}) (RPCRequest,
 //----------------------------------------
 // RESPONSE
 
-type RpcError struct {
+type RPCError struct {
 	Code    int    `json:"code"`
 	Message string `json:"message"`
 	Data    string `json:"data,omitempty"`
@@ -64,7 +64,7 @@ type RPCResponse struct {
 	JSONRPC string           `json:"jsonrpc"`
 	ID      string           `json:"id,omitempty"`
 	Result  *json.RawMessage `json:"result,omitempty"`
-	Error   *RpcError        `json:"error,omitempty"`
+	Error   *RPCError        `json:"error,omitempty"`
 }
 
 func NewRPCSuccessResponse(id string, res interface{}) RPCResponse {
@@ -87,12 +87,12 @@ func NewRPCErrorResponse(id string, code int, msg string, data string) RPCRespon
 	return RPCResponse{
 		JSONRPC: "2.0",
 		ID:      id,
-		Error:   &RpcError{Code: code, Message: msg, Data: data},
+		Error:   &RPCError{Code: code, Message: msg, Data: data},
 	}
 }
 
 func (resp RPCResponse) String() string {
-	if resp.Error == "" {
+	if resp.Error == nil {
 		return fmt.Sprintf("[%s %v]", resp.ID, resp.Result)
 	} else {
 		return fmt.Sprintf("[%s %s]", resp.ID, resp.Error)