private static string GetPayload(HttpWebRequest request, out string requestId)
{
string result = String.Empty;
var response = SetRequestAndGetResponse(request, out requestId);
if (response.StatusCode != HttpStatusCode.OK)
throw new ApplicationException("Request wrong");
var stream = response.GetResponseStream();
StreamReader reader = new StreamReader(stream);
result = reader.ReadToEnd();
return result;
}
}