Firebase push notifications on Android with multiple modules

Question

I'm currently trying to implement push notifications in our application.

So we have three modules.

• App 1
• Logic
• App 2

I gave them obviously names. App 1 and 2 have a dependency on the logic module. This module contains ALL the logic for both apps. Now I want App specific notifications to users that are logged in on App 1 OR App 2.

Problem:

I can't put the firebase logic into the Logic module since this module is configured as a lib module and isn't configured as an App. Now I have to put the firebase logic in App 1 and 2, but I can't access this logic from the Logic module since App 1 and 2 have a dependency on the Logic module and not the other way around.

Firebase requires a google-services.json for every app connected, this file is required to generate a user specific pushtoken.

Is there a way to configure this so that I can generate user specific tokens for push notifications? So after a user logs in a pushtoken has to be generated according to the App and user so this user can get a notifcation on said device which he/she is logged in.

I hope this is clear enough.

Answer 1

There should be nothing stopping you from implementing what you're describing.

You can still add Firebase SDK dependencies to a library module. You just can't use the google-services plugin on it - that belongs only on application modules.