✅ Moving from HttpWebRequest to HttpClient

var request = (HttpWebRequest)WebRequest.Create("https://127.0.0.1:" + port + url);

                request.PreAuthenticate = true;
request.ContentType = "application/json";
request.Method = type;          request.Headers.Add("Authorization", "Basic " + token);

var httpResponse =(HttpWebResponse)request.GetResponse();

using (var
 streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
return streamReader.ReadToEnd();
}