From b2ffe115874c422414d58038d5d01e1b411c5a6c Mon Sep 17 00:00:00 2001
From: Thomas P <TPXP@users.noreply.github.com>
Date: Thu, 18 Jun 2020 12:30:02 +0200
Subject: [PATCH] fix(ios): handle nil messaging token (#3790)

Co-authored-by: Mike Hardy <github@mikehardy.net>

[publish]
---
 .../ios/RNFBMessaging/RNFBMessaging+FIRMessagingDelegate.m     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/messaging/ios/RNFBMessaging/RNFBMessaging+FIRMessagingDelegate.m b/packages/messaging/ios/RNFBMessaging/RNFBMessaging+FIRMessagingDelegate.m
index ab5a49fa97..d6e9aa460e 100644
--- a/packages/messaging/ios/RNFBMessaging/RNFBMessaging+FIRMessagingDelegate.m
+++ b/packages/messaging/ios/RNFBMessaging/RNFBMessaging+FIRMessagingDelegate.m
@@ -49,6 +49,9 @@ - (void)observe {
 
 // JS -> `onTokenRefresh`
 - (void)messaging:(FIRMessaging *)messaging didReceiveRegistrationToken:(NSString *)fcmToken {
+  if (fcmToken == nil) { // Don't crash when the token is reset
+    return;
+  }
   [[RNFBRCTEventEmitter shared] sendEventWithName:@"messaging_token_refresh" body:@{
       @"token": fcmToken
   }];