RestHandler::getHandlerFields

private function getHandlerFields(): array
{
	if (!$this->handlerFields)
	{
		$handler = $this->service->getField('ACTION_FILE');
		$dbRes = PaySystemRestHandlersTable::getList([
			'filter' => ['CODE' => $handler]
		]);
		$data = $dbRes->fetch();

		if ($data)
		{
			$this->handlerFields = $data;
		}
	}

	return $this->handlerFields;
}