From 5309c61c1589667e47cbd2edba1a7f31859b6d05 Mon Sep 17 00:00:00 2001
From: Sebastien Schwartz <schwartz.seb@gmail.com>
Date: Mon, 17 Feb 2020 15:11:37 +0100
Subject: [PATCH] Allow in PubSub to add async custom headers

Allow in PubSub the same capabilities as API for custom headers:
* Async header
* Override headers (Authorization)

Check issue #4928 for explanations.
---
 packages/pubsub/src/Providers/AWSAppSyncRealTimeProvider.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/pubsub/src/Providers/AWSAppSyncRealTimeProvider.ts b/packages/pubsub/src/Providers/AWSAppSyncRealTimeProvider.ts
index 75c85d456dd..fd08fdcdd2e 100644
--- a/packages/pubsub/src/Providers/AWSAppSyncRealTimeProvider.ts
+++ b/packages/pubsub/src/Providers/AWSAppSyncRealTimeProvider.ts
@@ -241,7 +241,6 @@ export class AWSAppSyncRealTimeProvider extends AbstractPubSubProvider {
 
 		const dataString = JSON.stringify(data);
 		const headerObj = {
-			...graphql_headers(),
 			...(await this._awsRealTimeHeaderBasedAuth({
 				apiKey,
 				appSyncGraphqlEndpoint,
@@ -250,6 +249,7 @@ export class AWSAppSyncRealTimeProvider extends AbstractPubSubProvider {
 				canonicalUri: '',
 				region,
 			})),
+			...(await graphql_headers()),
 			[USER_AGENT_HEADER]: Constants.userAgent,
 		};