Windows Universal https Post Problem

I want to make a Json Post Request with my Windows Universal App.
I have it working in my Android and IOS.

   public String DoServiceCall()
        var request = (HttpWebRequest)WebRequest.Create(string.Format("{2}/{0}/{0}ServiceJson.svc/{1}", "Authentication", "Authenticate", "https://....."));

        using (MemoryStream ms = new MemoryStream())
            // create the request object
            string requestString = JSONRequest;
            byte[] requestData = Encoding.UTF8.GetBytes(requestString);
            request.Method = "POST";
            request.ContentType = "application/json; charset=UTF-8";
            request.ContentLength = requestData.Length;
            request.AllowAutoRedirect = false;

            // add known cookies to request (needed for authentication)
            CookieContainer requestCookies = new CookieContainer();
            foreach (Cookie knownCookie in this._cookieCollection)
                requestCookies.Add( knownCookie);
            request.CookieContainer = requestCookies;

            //For getting rid of the https Problem
            ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;

            using (Stream stream =  request.GetRequestStream())
                stream.Write(requestData, 0, requestData.Length);
            // get response data
            HttpWebResponse response = (HttpWebResponse) request.GetResponse();

            string responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
            return (responseString);

The Problem is that Windows Universal does not support.
request.ContentLength = requestData.Length;
request.AllowAutoRedirect = false;
requestCookies.Add( knownCookie); //with only on Argument
ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;

Neither does it support.
(HttpWebResponse) request.GetResponse();
But that i could fix with async
=> await request.GetRequestStreamAsync())
=> (HttpWebResponse)await request.GetResponseAsync();

But without that 4 Lines i couldn´t get it working on Windows.
Is there an Option to get it working on Windows 10 or is there an Working alternative.


Best Answer


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