Wsrtjtyk

I am currently using the Wordpress REST API to read and write posts.

I have created a custom post type called property:

register_post_type( 'property', array(

  'labels' => array(

    'name' => 'Properties',

    'singular_name' => 'Property',

   ),

  'description' => '',

  'show_in_rest' => true,

  'public' => true,

  'menu_position' => 20,

  'supports' => array( 'title', 'editor')

));



add_action( 'init', 'property_cpt' );

And I have added a custom metabox called property_name so the it will appear in the edit post admin page:

function add_property_metaboxes(){

    add_meta_box(

        'property_name', // id

        'Name', // title

        'property_name_callback', // callback

        'property', // page

        'normal', // context

        'default' // priority

    );

}

function property_name_callback() {

    global $post;

    wp_nonce_field( basename( __FILE__ ), 'property_fields' );

    $value = get_post_meta( $post->ID, 'property_name', true );

    echo '<input name="property_name" type="text" value="' . $value . '" />';

}

add_action( 'add_meta_boxes', 'add_property_metaboxes' );

I am handling the save function for this post type:

function property_save_meta( $post_id, $post ) {

    if ( ! current_user_can( 'edit_post', $post_id ) ) {

        return $post_id;

    }

    if  ( !isset( $_POST['property_name'] ) || 

          !wp_verify_nonce( $_POST['property_fields'], basename(__FILE__) ) ) {

        return $post_id;

    }

    $events_meta['property_name'] = esc_textarea( $_POST['property_name'] );



    foreach ( $events_meta as $key => $value ) :

        if ( 'revision' === $post->post_type ) {

            return;

        }

        if ( get_post_meta( $post_id, $key, false ) ) {

            update_post_meta( $post_id, $key, $value );

        } else {

            add_post_meta( $post_id, $key, $value);

        }

        if ( ! $value ) {

            delete_post_meta( $post_id, $key );

        }

    endforeach;

}

add_action( 'save_post', 'property_save_meta', 1, 2 );

And finally I have registered property_name as a rest field:

function register_rest_fields() {

    register_rest_field('property', 'property_name', 

        array(

        'get_callback' => 'get_post_meta_cb', 

        'update_callback' => 'update_post_meta_cb', 

        'schema' => null

        )

    );

}



function get_post_meta_cb($object, $field_name, $request){

    return get_post_meta($object['id'], $field_name, true); 

}

function update_post_meta_cb($value, $object, $field_name){

    if ( ! $value || ! is_string( $value ) ) {

        return;

    }

    return update_term_meta( $object->ID, $field_name, $value );

}

add_action('rest_api_init', 'register_rest_fields');

On the front-end, I am able to fetch 'property' posts using the API and the property_name field appears correctly in the response.

I am also able to create a new post easily but I am not able to set the property_name meta field value.

Currently I am trying:

request(`${url}/wp-json/wp/v2/property`, {

    method: "POST",

    body:JSON.stringify({

        title: 'Lorem ipsum dolor sit amet',

        content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.',

        status: 'publish',

        meta: {

            property_name: 'Testing'

        }

    })

});

(As pointed in my comment,) the problem is here:

function update_post_meta_cb($value, $object, $field_name){

    if ( ! $value || ! is_string( $value ) ) {

        return;

    }

    return update_term_meta( $object->ID, $field_name, $value );

}

where you're actually saving a post meta, but then used update_term_meta() which is for saving a term meta. :)

And (I forgot to say that) to fix it, just replace the update_term_meta() with update_post_meta(). ;)