In main.dart I've added this:

FirebaseAuth.instance.userChanges().listen((event) async {
      debugPrint('user state changed in main');
    });

The event is continuously getting triggered, with no changes to the users logged in status (I am developing for the web, not tested on devices).

CodePudding user response：

Use authStateChanges when interested in the current user.

authStateChanges

Notifies about changes to the user's sign-in state (such as sign-in or sign-out).

userChanges

Notifies about changes to any user updates.

CodePudding user response：

The issue was isolated - I was calling this inside the .listen((event) async {}

token = await FirebaseAuth.instance.currentUser!.getIdTokenResult(true);

which was triggering the event again...