Flutter Chat App or Messaging App Notification

Question

I am making a chat app with flutter. I used StreamBuilder to receive messages and store them in Firestore.

 StreamBuilder<QuerySnapshot<Map<String, dynamic>>>(
                stream: FirestoreHelper.firestoreHelper
                    .getMessageStream(widget.chatRoomModel.chatRoomId),
                builder: (context, dataSnapshot) {})

I want to include notifications in my app.

What should I use and what should I read. I am a junior flutter developer and I do not have any idea about notification.

Answer 1

Chat app article on Medium

1. The app explained there uses: firebase_messaging plugin to register push service and listening notification coming.
2. Cloud Functions fire a callback when it is triggered by an event — new document is added.
3. local_notifications to render our local notification when app in the foreground.

If you've found a better way, that's more up to date than the 2019 article, please answer your own question. I'm beginning work on it too.