Book Image

Learning WordPress REST API

By : Sufyan bin Uzayr, Mathew Rooney
Book Image

Learning WordPress REST API

By: Sufyan bin Uzayr, Mathew Rooney

Overview of this book

The WordPress REST API is a recent innovation that has the potential to unlock several new opportunities for WordPress developers. It can help you integrate with technologies outside of WordPress, as well as offer great flexibility when developing themes and plugins for WordPress. As such, the REST API can make developers’ lives easier. The book begins by covering the basics of the REST API and how it can be used along with WordPress. Learn how the REST API interacts with WordPress, allowing you to copy posts and modify post metadata. Move on to get an understanding of taxonomies and user roles are in WordPress and how to use them with the WordPress REST API. Next, find out how to edit and process forms with AJAX and how to create custom routes and functions. You will create a fully-functional single page web app using a WordPress site and the REST API. Lastly, you will see how to deal with the REST API in future versions and will use it to interact it with third-party services. By the end of the book, you will be able to work with the WordPress REST API to build web applications.
Table of Contents (16 chapters)
Learning WordPress REST API
About the Authors
About the Reviewer

WP REST API: internals and customization

In this last part of our tutorial series on WP REST API, we will be looking at how the internals of the WP REST API work and modifying server responses for our default endpoints to contain custom fields.

Internal classes and methods of WP REST API

WP REST API has two main categories of classes, and those are endpoint and infrastructure classes. The endpoint classes cover the CRUD actions over resources like posts and comments that we overviewed in the last chapter. The infrastructure classes are covering classes that lie at the foundation of the API. In the following example, we will be looking at each of those two classes in detail.

The endpoint classes within the WP REST API are responsible for performing actions of creating, reading, updating and deleting, which include different controllers like the WP_REST_Posts_Controller and various others that are united within a more general class named WP_REST_Controller.

This patterned class that provides the...