Using Firebase Authentication in Flutter

A Flutter project meant to demonstrate simple usage outline for Firebase.

Getting Started

Reference the following packages in your pubspec.yaml:

• google_sign_in
• firebase_auth

Ensure you have a Firebase account as well as a project for this example. Go through the process of registering your application as well as downloading the .json file to your project.

Firebase Settings

Under the authentication tab, enable at least one 'sign-in method'. This example uses both Google and email/password authentication.

In order to use Google authentication, ensure you have both a support email defined and debug SHA certificate fingerprints registered. These can both be set in the project settings.

Generating Debug SHA certificate fingerprints

Through a terminal follow the instructions here to retrieve the debug certificate fingerprints.

$ keytool -list -v -alias androiddebugkey -keystore ~\.android\debug.keystore

Note the default password is: android

Example

Home Screen

Google Authentication

Logged in Screen

Email Account Creation/Authentication

Firebase Console

References

Code snippets taken from the included packages example docs