Wordpress API V2 custom fields with custom post types

Question

I'm trying to add my custom posts to the Wordpress API, which also have custom fields.

I can view the custom posts types on the API via, /wp-json/wp/v2/fruit.

But the custom fields aren't displaying, how do you add them to the API?

or thats the way I did it - there might be others, but this was literally at the click of a button. — Stender
– Stender, Commented Dec 4, 2017 at 14:39
@Stender that didn't work for me, i'm not using the Advanced Custom Fields plugin — Graeme Paul
– Graeme Paul, Commented Dec 4, 2017 at 15:04

d79 · Accepted Answer · 2017-12-06 14:50:08Z

5

Take a look at "Extending the REST API / Modifying Responses", and in particular at register_rest_field.

Check out this example:

add_action( 'rest_api_init', 'create_api_posts_meta_field' );

function create_api_posts_meta_field() {

    // register_rest_field ( 'name-of-post-type', 'name-of-field-to-return', array-of-callbacks-and-schema() )
    register_rest_field( 'post', 'post-meta-fields', array(
           'get_callback'    => 'get_post_meta_for_api',
           'schema'          => null,
        )
    );
}

function get_post_meta_for_api( $object ) {
    //get the id of the post object array
    $post_id = $object['id'];

    //return the post meta
    return get_post_meta( $post_id );
}

edited Dec 6, 2017 at 14:50

answered Dec 4, 2017 at 15:37

d79

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