Jin Liu questions

Jin Liu answers

• Automatic auth linking
• Firebase merge user account by email after the fact
• Is there a way to determine if a Firebase user's UID is valid?
• Invalid authentication token after 1 hour - Disk Persistence in Firebase
• Migrate user authentication to Firebase Auth
• Google Identity Toolkit not getting Client ID for Login
• FirebaseAuthInvalidCredentialsException when using "One account per email address"
• Firebase Password Validation allowed regex
• Get id token on Android app and verify it on backend server (How to use id token?)
• How to use Firebase Authentication service and have user in our own database?