How do I implement authentication in a Ruby on Rails application?

How do I implement authentication in a Ruby on Rails application?

You can use the Devise gem for authentication in Ruby on Rails. It provides a complete solution for user registration, login, and password recovery.

What are the steps to set up Devise?

First, add the Devise gem to your Gemfile and run bundle install. Then, run rails generate devise:install to set it up.

Can I customize the views for sign up and login?

Yes, you can customize the views by running rails generate devise:views, which will create the view files in your app.

What if I want to add additional fields to the user model?

You can add additional fields by creating a migration and updating the Devise strong parameters in your controller.