Wineroute dynamic data for Adoric GTM teg

<script>
(function() {
    URL = 'https://www.wineroute.co.il/api/basket/list?sid=0';
    var data = null;
    var xhr = new XMLHttpRequest();
    xhr.withCredentials = true;
    xhr.addEventListener('readystatechange', function () {
        if (this.readyState === 4) {
            var cartData = JSON.parse(this.responseText);
            var totalCartSum = parseInt(cartData.TotalSum);
            window.adoricTotalCartSum = totalCartSum;
        }
    });
    xhr.open('GET', URL);
    xhr.setRequestHeader('cache-control', 'no-cache');
    xhr.send(data);
})();
</script>