REST API 5.11 Support For WooCommerce Products, Orders, Coupons

Add ability to customize supported routes, object_type, and object_child_type in the ACF_Rest_Request.

Currently, there is no out-of-the-box support for updating custom fields via the REST API on WooCommerce custom post types.

Would be good if these are either supported out of the box or have the ability to update the ACF_Rest_Request supported routes as well as object_type and object_child_type via filters so that we can do this ourselves.

Example code that I've whipped up that adds support via filters.

Line 145: add ability to update supported routes

$this->supported_routes = apply_filters('acf/rest_request_supported_routes', $this->supported_routes);

Line 206: add ability to update object_type and object_sub_type

$this->object_type = apply_filters('acf/rest_request_object_type', $this->object_type, $base, $child_base);
$this->object_sub_type = apply_filters('acf/rest_request_child_object_type', $this->object_sub_type, $base, $child_base);

Example filters to add support for WooCommerce Products

add_filter('acf/rest_request_supported_routes', function($supported_routes) {
  $supported_routes[] = '/wc/v3/(?P<rest_base>products)/(?P<id>[\d]+)';
  return $supported_routes;
});

add_filter('acf/rest_child_object_type', function($object_type, $base) {
  if(!$object_type && $base === 'products') {
    return 'product';
  }
  return $object_type;
}, 2, 10);


add_filter('acf/rest_request_object_type', function($object_type, $base) {
  if(!$object_type && $base === 'products') {
    return 'product';
  }
  return $object_type;
}, 2, 10);

Start by locating ACF_Rest_Request and reviewing the logic around the referenced lines 145 and 206, including how REST routes and object types are determined. Compare that behavior with WooCommerce product, order, and coupon routes; done means those values can be customized through filters or are supported out of the box as specified.