Using Supabase for authentication in Flutter

Supabase, an open-source alternative to Firebase, offers a robust and flexible solution for integrating user authentication into Flutter applications. Unlike Firebase, Supabase is free to use and supports various third-party authentication services such as Google, Apple, Twitter, and more, alongside SAML-based enterprise logins. To get started with Supabase, developers need to create a project on the Supabase dashboard and obtain a URL and public API key for their Flutter app. The article guides users through setting up a Supabase service class in Flutter to handle authentication functions like signup, login, and logout, demonstrating how to disable email verification for simplicity. Additionally, the article emphasizes Supabase's ease of integration for authentication without building a custom solution, while also highlighting its support for social authentication providers and encouraging users to explore further options through the Supabase documentation.