Доступные страны

1async function getCartAvailableCountries() {
2   const baseUrl = 'http://apilocal.stableproxy.com/v2';
3   const req = await fetch(baseUrl + '/cart/available-countries?' + Object.entries({
4         "service": 49
5      }).map(([key, value]) => key + "=" + value).join('&'), {
6         method: 'GET',
7         headers: {
8            'Content-Type': 'application/json'
9         }
10      }
11   );
12   
13   const res = await req.json();
14}