Ruby on Rails | Sessions (login logout)

How to create session in Rails

• Create route: get 'login', to: 'sessions#new'
• Create route: post 'login', to: 'sessions#create'
• Create route: delete 'logout', to: 'sessions#destroy'
• Create sessions sub folder in controllers directory, and create new file, sessions_controller.rb
• Create new, create and destroy actions.
• In views, create new.html.erb
• In application_controller.rb, create current_user, logged_in and require_user actions