From 6788ef20c85fe5fbe8bbd47b4264788c7a6ad77a Mon Sep 17 00:00:00 2001
From: Chris <ccbrown112@gmail.com>
Date: Sun, 2 Aug 2020 03:43:10 -0400
Subject: [PATCH] omit empty error vec in data message serialization (#732)

---
 juniper_graphql_ws/src/server_message.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/juniper_graphql_ws/src/server_message.rs b/juniper_graphql_ws/src/server_message.rs
index 3c353164..d3f1a59a 100644
--- a/juniper_graphql_ws/src/server_message.rs
+++ b/juniper_graphql_ws/src/server_message.rs
@@ -21,6 +21,7 @@ pub struct DataPayload<S> {
 
     /// The errors that have occurred during execution. Note that parse and validation errors are
     /// not included here. They are sent via Error messages.
+    #[serde(skip_serializing_if = "Vec::is_empty")]
     pub errors: Vec<ExecutionError<S>>,
 }
 
@@ -163,7 +164,7 @@ mod test {
                 },
             })
             .unwrap(),
-            r##"{"type":"data","id":"foo","payload":{"data":null,"errors":[]}}"##,
+            r##"{"type":"data","id":"foo","payload":{"data":null}}"##,
         );
 
         assert_eq!(