ConvertToServiceItem::processRequest

public function processRequest(HttpRequest $request): ?Result
{
	$id = $request->getPost('id');
	if (empty($id) || !is_numeric($id))
	{
		return null;
	}
	$id = (int)$id;

	return ProductAction::convertToServiceElementList($this->getIblockId(), [$id]);
}