🐛 [firebase_auth] FirebaseAuth.instance.currentUser initially null for the first few seconds initializing firebase on windows

[Justus-M]

Bug report

Describe the bug

FirebaseAuth.instance.currentUser is always null when initializing firebase on windows, even if the user is logged in. It then changes to a non-null value within a few seconds.

Steps to reproduce

Steps to reproduce the behavior:

1. Login with FirebaseAuth on flutter windows
2. restart app and print FirebaseAuth.instance.currentUser immediately after initializing firebase
3. See that the value is null initially, and then changes after about 20 seconds

Expected behavior

I expect the logged in user object to be shown on initialization, otherwise I have to add a delay (not sure how long it needs to be) or I don't know whether to show the login page or not. On mac and web, currentUser is immediately loaded on initialization.

Flutter doctor

Run flutter doctor and paste the output below:

Click To Expand

PS C:\Users\justinmulli\blazesql_flutter> flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 3.16.4, on Microsoft Windows [Version 10.0.17763.5122], locale en-US)
[√] Windows Version (Installed version of Windows is version 10 or higher)
[X] Android toolchain - develop for Android devices
    X Unable to locate Android SDK.
      Install Android Studio from: https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK components.
      (or visit https://flutter.dev/docs/get-started/install/windows#android-setup for detailed instructions).
      If the Android SDK has been installed to a custom location, please use
      `flutter config --android-sdk` to update to that location.

[√] Chrome - develop for the web
[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.7.2)
[!] Android Studio (not installed)
[√] VS Code (version 1.85.1)
[√] Connected device (3 available)
[√] Network resources

! Doctor found issues in 2 categories.
PS C:\Users\justinmulli\blazesql_flutter>```


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[danagbemava-nc]

Hi @Justus-M, is this limited to only windows or do you experience it on other platforms as well?

Can you share the code sample you use as well?

[Justus-M]

I haven't had time to create a minimum reproducible example but I imagine you can just use the example app and print FirebaseAuth.instance.currentUser immediately after initializing firebase.

I have added a delay of a few seconds and then it is no longer null, so to be honest this is no longer a priority for me. I believe it's an issue with the library so I wanted to bring it to your attention since flutterfire is still in the early stages for windows and has various issues.

But the code is literally just

print(FirebaseAuth.instance.currentUser)

This prints null on windows after initializing firebase, even if the user was logged in before closing the app.

On mac, web, and mobile it does not return null

[google-oss-bot]

Hey @Justus-M. We need more information to resolve this issue but there hasn't been an update in 7 weekdays. I'm marking the issue as stale and if there are no new updates in the next 7 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!

[Justus-M]

I provided more information