authentication-flow

Implement user authentication in a Rails app by running the built-in `bin/rails generate authentication` command, which creates a secure, token-based system for user registration, login, and session persistence without external gems.

Session management uses a dedicated `Session` model and secure signed cookies to maintain user login state. This approach ensures persistent sessions and secure token-based authentication across requests in Rails applications.

Yes, Rails built-in authentication includes password reset functionality. The generated system provides complete flows allowing users to securely reset forgotten passwords directly within the Rails application.

Yes, you can protect specific Rails routes. The authentication system integrates with `ApplicationController` via a concern, allowing you to easily guard routes and provide controller access to the current user.

The best way to set up secure user registration and login in Rails 8 is using the native authentication generator. It leverages Rails 8's built-in capabilities to deliver a robust, standard authentication system quickly.

You need token-based authentication when launching a new Rails application requiring user accounts. It provides a secure, standard method for managing user registration, login, logout, and session persistence via signed cookies.