Check If User Is Logged In Firebase. FirebaseUser user = FirebaseAuthgetInstance()getCurrentUser() if (user != null) { // Name email address and profile photo Url String name = usergetDisplayName() String email = usergetEmail() Uri photoUrl = usergetPhotoUrl() // Check if user’s email is verified boolean emailVerified = userisEmailVerified() // The user’s ID unique to the Firebase project.
This should be possible for nonloggedin users Therefore there need to be a check if this entry is already in the database As I don’t want to expose the full list to the nonloggedin user how would I check if an EMail address already exists without making a fetch GET request that is having rights to access that list with firebase as the whole code is exposed in the.
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lukasborawski changed the title Check logged user in firebase with Nuxtjs middleware Check logged user in firebase with middleware Jul 25 2017 Copy link ChavaSobreyra commented Jul 26.
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Maybe the shortest and safest answer is if (FirebaseAuthinstancecurrentUser?uid == null) { // not logged } else { // logged } It gets the User ID (if exists) which is recorded on Firebase Authentication UID field for each user have been authenticated on the app before otherwise it returns null.
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Here I started writing JAVA code to check if someone is already logged in or not If someone is logged in then just let the current activity (which is MainA.
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You can easily detect if the user is logged or not by executing var user = firebaseauth()currentUser For those who face the “returning null” issue it’s just because you are not waiting for the firebase call to completeCode samplefirebaseauth()onAuthStateChanged(function(user) { if (user) { } else { }})Was this helpful?Thanks! .