<?
require_once('../init.php');
header('Content-type: application/json');

if(isset($_POST['pos_id']) && isset($_POST['count']))
{
	$pos_id = (int)$_POST['pos_id'];
	$count = (int)$_POST['count'];
	if($pos_id && $count && CModule::IncludeModule("sale"))
	{
		$arFields = array("QUANTITY" => $count);
		CSaleBasket::Update($pos_id, $arFields);
	}
}
$a = Order::GetCart();

echo \Bitrix\Main\Web\Json::encode($a);