Plugin / Genesis REST API Integration

Braad Martin



If your site uses the Genesis framework, it’s likely that you’re making use of Genesis hooks like genesis_before_content or genesis_entry_footer. When using the WP REST API, any content that has been added to these hooks is not included in the response by default.

This plugin filters the response from the API to include any content added via Genesis hooks. It adds this content to the post object response, which means you don’t have to do a separate request or modify your request to get the data. Simply ask for a post in the standard way like /wp-json/wp/v2/posts/1 and you’ll get the extra content from the Genesis hooks.

Example diff showing the response with and without the plugin active

The Genesis hook content that is returned is generated with respect to the context of the specific post being retrieved. The context will match what it would be on the single post page for the given post, page, or custom post type. This means that if you’ve got some code like this:

add_action( 'genesis_before_entry', 'mytheme_output_special_content' );
function mytheme_output_special_content() {
    // Only on posts in a specific category
    if ( in_category( '5' ) ) {
        echo 'Some Content';

You’ll get back ‘Some Content’ as the value of the property ‘genesis_before_entry’ on the response object only if the post is actually in category 5. All of the standard conditionals like is_archive(), is_single(), has_tag(), etc. will be respected.

By default this plugin only adds properties to the response object for hooks that have output, but you can modify this behavior using a filter like so:

add_filter( 'genesis_rest_api_return_empty_hooks', '__return_true' );

By default this plugin adds the extra properties to posts, pages, and all custom post types, but you can specify which post types you want to include the extra data with another filter:

add_filter( 'genesis_rest_api_supported_post_types', 'mytheme_genesis_rest_api_supported_post_types' );
function mytheme_genesis_rest_api_supported_post_types( $post_types ) {

    // Only add data to the movie post type.
    $post_types = array( 'movie' );

    return $post_types;

NOTE: In v2 of the REST API, custom post types need to have the extra properties show_in_rest, rest_base, and rest_controller_class set on their post type objects in order for the API to start serving data for them. I’ve included a filter in this plugin for adding these properties so that you can declare REST API support for CPTs and add the extra Genesis data in one step, but the filter is off by default and won’t override properties that are already set (because if core doesn’t assume you want all your CPTs publicly accessible by default, I don’t think I should either). To turn this functionality on, use the included filter like this:

add_filter( 'genesis_rest_api_register_cpt_api_support', '__return_true' );

If you do this, you’re CPTs will be available at routes that match the official name of the post type found on the post type object, so if your post type is ‘movie’ and you have a movie with an id of 8, the movie will be accessible at /wp-json/v2/movie/8. It’s probably a better idea to match the core convention of /posts/ and /pages/, so if you want to make the route available at /movies/ instead of /movie/ you just need to specifically set the rest_base property like so:

add_action( 'init', 'mytheme_change_cpt_routes', 11 );
function mytheme_change_cpt_routes() {

    global $wp_post_types;

    $wp_post_types['movie']->rest_base = 'movies';

Here’s the full list of all the Genesis hooks that are currently supported:


And naturally, there is a filter to control which hooks are supported:

add_filter( 'genesis_rest_api_supported_hooks', 'mytheme_genesis_rest_api_supported_hooks' );
function mytheme_genesis_rest_api_supported_hooks( $genesis_hooks ) {

    // Only include certian hooks.
    $genesis_hooks = array(

    return $genesis_hooks;

NOTE: The hooks genesis_header and genesis_loop are not included by default because they mostly call other hooks that are included, but you can always add them back in using the genesis_rest_api_supported_hooks filter.

NOTE: Returning formatted HTML over the REST API is not the best way to make use of a REST API to build a website. It would be preferable to return only the raw object data and build all of your HTML on the client side using the object data. With this plugin you can do exactly this with a little help from json_encode:

add_action( 'genesis_before_entry_content', 'mytheme_pass_array' );
function mytheme_pass_array() {

    if ( is_single( 124 ) ) {
        $json = array(
            'a_key' => 'some value',
            'another_key' => 'another value',
        echo json_encode( $json );

Or the object version:

add_action( 'genesis_after_entry_content', 'mytheme_pass_object' );
function mytheme_pass_object() {

    if ( in_category( 2 ) ) {
        $json = new stdClass();
        $json->some_key = 'some value';
        $json->another_key = 'another value';
        echo json_encode( $json );

Passing arbitrary objects and arrays like this really opens up some interesting possibilities.

If you have any ideas for new features or find a bug, please open an issue on Github. Pull requests are also encouraged :).


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