Do the following in your web or mobile app:
Read moreHow does authentication work in Flutter?
Upon completion of the sign-in transaction, the users authenticate with the authorization server and return to the application . Inside the AuthorizationTokenResponse result object, you receive three tokens: accessToken : an OAuth 2.0 artifact that allows the application to call secure APIs on behalf of the user.
Read moreHow do I use Firebase authentication?
Get Started with Firebase Authentication on Websites
Read moreHow do you pass the authorization header in Flutter?
“how to pass token in header in flutter” Code Answer
Read moreHow do I authenticate my email on flutter?
Follow the steps to Firebase email and password authentication in the Flutter application.
Read moreHow do I authenticate my phone number on flutter?
On the Firebase Console, select the “Phone” authentication provider and click on the “Phone numbers for testing” dropdown. Enter a new phone number (e.g. +44 7444 555666 ) and a test code (e.g. 123456 ).
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