Level Up

A collection of resources for WordPress Developers, written and curated by experts

Posts tagged: REST API

Scaling the REST API: Defensive Architecture for Custom Endpoints

The WordPress® REST API is the primary bridge to modern frontend frameworks. However, default endpoints are generic by design. Custom endpoints require precise logic to avoid over-fetching data and exhausting… Read more

Mike Davey

Mar 16, 2026

5 Ways to Create a WordPress Plugin Settings Page

The extensibility of WordPress has always been one of its strong points. Not only are there thousands of plugins available, you can build your own. At some point, you might… Read more

Iain Poulson

Dec 2, 2024

Handling AJAX Requests in WordPress: WP REST API vs admin-ajax.php vs Must-Use Plugin

The WordPress REST API was merged into WordPress core in version 4.7. Before that, developers relied on the default AJAX implementation, otherwise known as admin-ajax after the /wp-admin/admin-ajax.php file that… Read more

Matt Shaw

Oct 17, 2023

How to Develop a WordPress Plugin Using Webpack 3, React and the REST API (part 2)

How to Develop a WordPress Plugin Using Webpack 3, React and the REST API (part 2)

This is article 2 of 2 in the series “How to Develop a WordPress Plugin Using Webpack 3” Have you ever wondered how to get React working with the WordPress… Read more

Peter Tasker

Oct 31, 2017