Lets say users subscribe to a topic, checkedIn_"restaurantId", meaning they (and I) gets notified when users check in at the restaurant with that id.
But, I want to avoid to get notified when I (myself) checks in to that restaurant.
How would one manage that?
I only see one way out: I unsubscribe from that topic, then sending message, then subscribe again.
There is no way to exclude on user from a notification to a topic. The common way to implement is to separate message delivery, from the display of the notification on the device.
If you send a data only message with Firebase Cloud Messaging, it is *always` the responsibility of your application code to handle that message. So if you send the information about the check-in in a data-only message and include the ID of the user in that data, the receiving code can check whether that is their own message and not display a notification in that case.
To learn more, see:
