[pathardepavan]

Please find the code below.. I am sure it must be a very small error

add_action( 'rest_api_init', function() {
 register_api_field( 'topic',
    'post_parent',
    array(
       'get_callback'    => 'slug_get_post_meta_cb',
       //'update_callback' => 'slug_update_post_meta_cb',
       'update_callback' => 'slug_update_spaceship2',
       'schema'          => null,
    )
 );

});

 
function slug_update_spaceship2( $value, $object, $field_name ) {
   
   return update_post_meta( $object->ID, $field_name, $value);

}

function slug_get_post_meta_cb( $object, $field_name, $request ) {
    return get_post_meta( $object['id'], $field_name );
}

[pathardepavan]

@robkk I am a php developer myself but can you guide me on how can i achieve this ?