Paginate Products List
Explore how to implement pagination using the Kaminari gem in your Rails API. Learn to modify the controller to limit product listings per page, include pagination data in JSON responses, and update tests to ensure functionality, enhancing API performance and usability.
We will start slowly by paginating the products list since we don’t have any access restriction. This allows for easier testing.
The kaminari gem
We need the kaminari gem for pagination. The kaminari gem is an easily implementable and customizable paginator. We can add this gem to the Gemfile by using this command:
$ bundle add kaminari
In this case, we already have kaminari installed, so we can move forward.
Modify index function
We will go to the index action in the app/controllers/api/v1/products_controller.rb file and add
the pagination methods as ...