Hi,

I’m a newbie in wordpress, finding it difficult to retrieve author name from custom get post meta api

Below is snippet of my code

add_action( 'rest_api_init', 'my_register_template_hook' );
function my_register_template_hook() {
    register_rest_field( 'post', // any post type registered with API
        'appp',
        array(
            'get_callback'    => 'my_get_hook_data',
            'update_callback' => null,
            'schema'          => null,
        )
    );
}

function my_get_hook_data( $object, $field_name, $request ) {
    $data['post_detail']['below_title'] = '<span class="schedule-time">' . get_post_meta( $object['id'], 'author', true) . '</span>';

       $data['post_detail']['above_title'] = '<div class="post-featured-wrap">' . get_the_post_thumbnail( $object['id'], 'large', array( 'class' => 'post-featured' ) ) . '</div>'; 
       
   return $data;
}

I could only retrieve featured image