WordPress REST API
The WordPress REST API is a set of endpoints that allow external applications to interact with a WordPress site by sending and receiving JSON data. It enables developers to create, read, update, and delete WordPress content (such as posts, pages, and users) programmatically over HTTP. This transforms WordPress from a traditional CMS into a headless or decoupled application platform.
Developers should learn the WordPress REST API when building mobile apps, single-page applications (SPAs), or integrating WordPress with external services, as it provides a standardized way to access site data without relying on PHP templates. It's essential for creating headless WordPress setups where the front-end is built with modern JavaScript frameworks like React or Vue.js, allowing for more flexible and scalable web architectures.