CODEWITHSUNDEEP
firebaseflutterfirebase-authentication
Paul Kruger
Paul Kruger

Reputation: 2314

How do I verify that current FirebaseUser exists?

How do I verify that FirebaseAuth.instance.currentUser() still exists in Firebase Authentication (server-side)?

I deleted the user in my Firebase Console, but FirebaseAuth.instance.currentUser still return a user.

So, how do I check that (await FirebaseAuth.instance.currentUser()).uid is still in my Auth list in the Firebase Console?

Upvotes: 2

Views: 411

Answers (2)

Khushal Gupta
Khushal Gupta

Reputation: 21

using angular,

isLoggedIn() {
   return this.afAuth.authState.pipe(first())
}

doSomething() {
  isLoggedIn().pipe(
    tap(user => {
      if (user) {
        // do something
      } else {
        // do something else
      }
    })
  )
  .subscribe()
}

Upvotes: 0

creativecreatorormaybenot
creativecreatorormaybenot

Reputation: 126894

You can use the reload method of FirebaseUser.

final FirebaseUser firebaseUser = await FirebaseAuth.instance.currentUser();
await firebaseUser.reload();

// This should print `true` if the user is deleted in the Firebase Console.
print(await FirebaseAuth.instance.currentUser() == null);

If your user is deleted in the Firebase Console (or disabled) and you call reload on the user in Flutter, the next time you call currentUser, it should return null, i.e. there is no user authenticated on this device.

Upvotes: 4

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