authentication

Set up Rails 8 user authentication by running the built-in generator to scaffold models and controllers. This creates a secure foundation using has_secure_password for password hashing and session-based login for request-level context.

Rails handles OAuth integration by processing callback flows from providers like Google or GitHub. The authentication system manages these OAuth callbacks to securely link third-party provider identities to your local application user accounts.

Implement password resets and email verification in Rails using the generates_token_for feature. This approach creates secure, token-based actions that enable reliable account recovery and email confirmation workflows for users.

Yes, Rails 8 authentication supports multi-device sessions and remember-me functionality. It provides Current storage for request-level authentication context, enabling concurrent session management across multiple devices for a single user.

Yes, you can use has_secure_password without custom boilerplate by applying the Rails 8 generator. It automatically wires secure password hashing into the User model and integrates it directly with the session controllers.

You need custom session handling when extending typical web app workflows beyond standard secure sign-in. The generator output covers standard login, password resets, and OAuth, but complex authorization rules may require manual additions.