From 954913b42fd00f97b29f66ec8a75bd624395301e Mon Sep 17 00:00:00 2001
From: Ivan Goncharov <ivan.goncharov.ua@gmail.com>
Date: Sun, 4 Apr 2021 19:17:46 +0300
Subject: [PATCH] subscribe: simplify root field extraction (#3025)

---
 src/subscription/subscribe.js | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/subscription/subscribe.js b/src/subscription/subscribe.js
index f0b8163aa9..1fa1eefc6a 100644
--- a/src/subscription/subscribe.js
+++ b/src/subscription/subscribe.js
@@ -203,11 +203,8 @@ async function executeSubscription(
     Object.create(null),
     Object.create(null),
   );
-  const responseNames = Object.keys(fields);
-  const responseName = responseNames[0];
-  const fieldNodes = fields[responseName];
-  const fieldNode = fieldNodes[0];
-  const fieldName = fieldNode.name.value;
+  const [responseName, fieldNodes] = Object.entries(fields)[0];
+  const fieldName = fieldNodes[0].name.value;
   const fieldDef = getFieldDef(schema, type, fieldName);
 
   if (!fieldDef) {