Extending the WP REST API

Sample code for extending the WordPress REST API. Slides are also available

Examples in this Code

• Add revision counts to posts: register_api_field()
• Add featured image URL and dimensions to posts: rest_prepare_post filter and add_link()
• Custom routes: register_rest_route
• Custom authentication: determine_current_user filter
• Forcing API Link in headers to SSL: rest_url filter
• Disallowing non-SSL requests: rest_pre_dispatch filter
• Non-JSON responses: rest_pre_serve_request filter
• Change base API URL prefix: ‘rest_url_prefix’ filter
• Hide media endpoing from non-authenticated users: global $wp_post_types; $wp_post_types['attachment']->show_in_rest = is_user_logged_in();
• Disabled media endpoint: rest_dispatch_request filter