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Jonathan Bossenger
Let’s Code
Learn.WordPress.org
Extending the WP REST API - custom routes &
endpoints

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👋🏽
Welcome!
As you join, please make sure you have your local
development environment ready:
• A local WordPress installation
• A code editor like VSCode or Sublime
• Postman
https://www.postman.com/downloads/
Then, let everyone know in the chat where you’re
joining us from, and something interesting about your
city/state/country…
Hello!
○ My name is Jonathan Bossenger
○ From Cape Town, South Africa
○ Ex-developer turned code instructor
○ Sponsored contributor at Automattic
○ jonathanbossenger.com

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Learn.WordPress.org
Let's code!
The WP REST API -
custom routes and
endpoints
Jonathan Bossenger

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Announcements
○ Welcome, and thank you to Joshua for co-hosting!
○ We are presenting in focus mode, but please feel free to enable your video.
○ Please let me know if you can’t see my shared screen.
○ You are welcome to ask questions.
○ You are welcome to post questions in the chat, or unmute to ask questions.

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Announcements
○ Make sure your local install is ready
• https://www.postman.com/downloads/
○ If I am going too fast, please let me know!
○ We will be posting this session to https://wordpress.tv/ afterwards
○ For more WordPress focused content please visit https://learn.wordpress.org/
○ Follow up questions/feedback - https://github.com/WordPress/Learn/issues/1304

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Learning Outcomes
1. Registering a custom WP REST API route
2. Registering different route endpoints
3. How to access WP REST API request data in your custom route
4. Protecting routes/requiring authentication
5. Adding and using path variables on routes

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Objectives
1. Create a form submissions REST API plugin
2. Create a custom table to store form submissions
3. Register a custom WP REST API route to fetch submissions
4. Register a custom WP REST API route to post submissions
5. Register a custom WP REST API endpoint to fetch a single submission
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Let’s code.

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Resources
○ https://github.com/WordPress/Learn/issues/1304
○ https://www.postman.com/downloads/
○ https://developer.wordpress.org/rest-api/extending-the-rest-api/adding-custom-endpoints/
○ https://developer.wordpress.org/rest-api/extending-the-rest-api/routes-and-endpoints/
○ https://developer.wordpress.org/reference/functions/dbdelta/
○ https://developer.wordpress.org/reference/functions/register_rest_route/
○ https://developer.wordpress.org/reference/functions/register_activation_hook/
○ https://developer.wordpress.org/reference/functions/current_user_can/
○ https://github.com/CastosHQ/Seriously-Simple-Podcasting/tree/master/php/classes/rest