[firebase_auth] - Token is not refreshed after expired

[borabaloglu]

Hi all,

I have a Flutter app that uses Firebase Auth. The issue that I am facing is:

When I am using the application it is fine. The token is refreshed and never expires. However, when I go to the home screen on my phone. Lock the phone or use other applications. After 1 hour (so the token expired), I open the app again. It calls getIdToken(true) but returning token is not a refreshed token. It still has an expired date. So when my backend calls validateIdToken it returns an unauthorized exception. How can I fix this issue?

I share the code where I generate token before each request :

fb.IdTokenResult? tokenResult =
    await fb.FirebaseAuth.instance.currentUser?.getIdTokenResult(true);

if (tokenResult != null &&
    tokenResult.expirationTime?.isBefore(DateTime.now()) == true) {
  tokenResult =
      await fb.FirebaseAuth.instance.currentUser?.getIdTokenResult(true);
}