Using ActiveModel::Serializer, learn how to create the JSON responses for your Rails API application. ASM is a great object oriented approach to building a JSON API.

A brief introduction on Rails API. Learn how to create an API application and setup the routes. This episode is paving the way for more in depth looks into Rails API.

Prevent unauthorized access to your application with Pundit; an authorization library for Ruby on Rails which restricts what resources a given user is allowed to access.

Add multi factor authentication to your existing authentication solution. This gives your users the option to increase the level of security to their account and help prevent unauthorized access.

Devise is a flexible authentication solution for Rails based on Warden. Learn how to add a stable authentication solution like Devise to your application.