Book Image

WordPress Plugin Development Cookbook - Third Edition

By : Yannick Lefebvre
Book Image

WordPress Plugin Development Cookbook - Third Edition

By: Yannick Lefebvre

Overview of this book

WordPress is one of the most widely used, powerful, and open content management systems (CMSs). Whether you're a site owner trying to find the right extension, a developer who wants to contribute to the community, or a website developer working to fulfill a client's needs, learning how to extend WordPress' capabilities will help you to unleash its full potential. This book will help you become familiar with API functions to create secure plugins with easy-to-use administration interfaces. This third edition contains new recipes and up-to-date code samples, including new chapters on creating custom blocks for the block editor and integrating data from external sources. From one chapter to the next, you’ll learn how to create plugins of varying complexity, ranging from a few lines of code to complex extensions that provide intricate new capabilities. You'll start by using the basic mechanisms provided in WordPress to create plugins, followed by recipes covering how to design administration panels, enhance the post editor with custom fields, store custom data, and even create custom blocks. You'll safely incorporate dynamic elements into web pages using scripting languages, learn how to integrate data from external sources, and build new widgets that users will be able to add to WordPress sidebars and widget areas. By the end of this book, you will be able to create WordPress plugins to perform any task you can imagine.
Table of Contents (15 chapters)

Setting up a block development environment and creating a simple block

As mentioned in the introduction, code to create custom blocks written using ESNext and JSX must be compiled before being able to run in standard browsers. This recipe shows how to download a copy of Node.js, the tool that will allow us to build our code, along with a set of necessary support modules to create a reusable block development environment.

Getting ready

You should have access to a WordPress development environment, either on your local computer or a remote server, where you will be able to load your new plugin files.

How to do it...

Follow these steps to create your first simple block:

  1. Download and install the current long-term support (LTS) version of Node.js ( At the time of writing, the version is 16.13.2. The libraries that are currently used for WordPress block development are not currently compatible with Node.js version 17. On the Windows platform, make...