Rest::isCorrectFrom

public function isCorrectFrom($from): bool
{
	[$appId, $code] = explode('|', $from);
	$restSender = RestAppTable::getList(
		[
			'filter' => [
				'=APP_ID' => $appId,
				'=CODE' => $code
			],
			'select' => ['ID']
		]
	)->fetch();

	return $restSender !== false;
}