From c6c7b9aa99fb76ee5460ccd3912ba35d419d493d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Kupka?= <ondra.cap@gmail.com>
Date: Wed, 2 Aug 2017 20:50:46 +0200
Subject: [PATCH] Response: Add omitempty tag for Result (#14)

The 'result' key MUST be unset according when the error key is set.
This is not what is happening right now. When the error is set,
"result":null is returned in the response payload. This patch is fixing
the issue by adding omitempty for the result field.
---
 jsonrpc2.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/jsonrpc2.go b/jsonrpc2.go
index fb95f7a..54f6833 100644
--- a/jsonrpc2.go
+++ b/jsonrpc2.go
@@ -128,7 +128,7 @@ func (r *Request) SetMeta(v interface{}) error {
 // http://www.jsonrpc.org/specification#response_object.
 type Response struct {
 	ID     ID               `json:"id"`
-	Result *json.RawMessage `json:"result"`
+	Result *json.RawMessage `json:"result,omitempty"`
 	Error  *Error           `json:"error,omitempty"`
 
 	// Meta optionally provides metadata to include in the response.