the repository containes the code to push notification to flutter using firebase messaging both in background and foreground.

I missed the part of handling the terminated state message payload in the video. I have fixed that issue and updated the code on github repository.

Just added this lines in main.dart file

 // for handling in terminated state
  final RemoteMessage? message =
      await FirebaseMessaging.instance.getInitialMessage();

  if (message != null) {
    print("Launched from terminated state");
    Future.delayed(Duration(seconds: 1), () {
      navigatorKey.currentState!.pushNamed("/message", arguments: message);
    });
  }

• Push notification in background
• Push notification in foreground
• Add onTap and open new screen with payload

To watch full tutorial click here.