In this tutorial, i will build a Flutter app that allows users to sign in with their Google accounts, leveraging a REST API built with Symfony framework for authentication and JSON Web Token management.

When a user signs in through Google, our system will check if the user already exists in our database. If not, it will create a new user account. Once authenticated, either as a new or existing user, our application will generate a JSON Web Token.

This JSON Web Token is securely stored using flutter_secure_storage and allows the Flutter app to send requests and access resources.