Hepsiburada MarketPlace:


ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
String encoded = System.Convert.ToBase64String(System.Text.Encoding .GetEncoding("ISO-8859-1").GetBytes(username + ":" + password));
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://oms-external.hepsiburada.com/orders/merchantid/" + suplierid + "?offset=0&limit=100");
request.Method = "GET";
request.Headers.Add("Authorization", "Basic " + encoded);