The document provides best practices for creating a WordPress REST API, including using the default REST API in WordPress 4.4, adding routes, namespaces, and arguments. It also mentions using middleware, ETAGs, and RAML. Useful links for the REST API, plugins, and Cloud9 IDE are included.

1. Best Practices for
creating WordPress
REST API
by Galkin Nikita
WORDPRESS KITCHEN MEETUP
SPRING 2016

2. Useful links
http://v2.wp-api.org
https://wordpress.org/plugins/rest-api/
http://raml.org
https://www.getpostman.com
https://c9.io
https://wp-rest-galk-in.c9users.io

3. Default REST in Wordpress 4.4
Start endpoint http://example.com/wp-json/
Added oembed/1.0/ namespace
Off REST API
add_filter('rest_enabled', function() {return false;});

4. Standart REST API
{
"name": "Example WordPress Site",
"namespaces": [
"wp/v2",
"oembed/1.0/"
]
}

5. Add route
add_action( 'rest_api_init', function () {
register_rest_route( 'myplugin/v1', '/example/', array(
'methods' => 'GET',
'callback' => function($request) {
return "Hello world!";
},
) );
} );

6. Namespace =
<plugin|theme>/<version>

7. Route
last part of
endpoint

8. Arguments
methods
callback
permission_callback
args
default
required
sanitize_callback

9. Middleware

10. ETAG

11. R
A
M
L