Yes I know that this has been asked on StackOverflow before but I just can't find exactly what I am looking for. So what I would like is when a user (user1) send a message to another user (user2) , for user2 to get a notification saying they have a new message from user1. So far I have set my app up so that I can send a push notification from the Firebase Console, but not so that the app does it automatically. I think I need an observe function but I am not quite sure what to do or the code for it?
Thank you so much for all the help! This is my first time with Firebase.