JSON (JavaScript Object Notation) is a format that can be used to store or exchange data. It is easy to read by humans and easy to parse by machines, which is why a lot of APIs use JSON.

In this article, we will learn how to create custom JSON responses with ActiveModel::Serializer. All examples are created using a Ruby on Rails application. Creating JSON responses in Rails is easy, but using the framework default feature is not enough and is not easily testable.

Continue reading %Active Model Serializers, Rails, and JSON! OH MY!%

Source: SitePoint