The remote server returned an error: (401) Unauthorized: Push Notification

Question

I am developing push notifications in BB 10 cascades.I am developing my own push initiator and not using Push Service SDK. My Server side push initiator code is as follows.

private static void pushMessageSample(string pushPin, string pushedMessage)
{
string s = "";
try{
String appid = "xxxx-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
String password = "xxxxxxxx";
String deliverbefore = DateTime.UtcNow.AddMinutes(5).ToString("s",     System.Globalization.CultureInfo.InvariantCulture) + "Z";
String Boundary = "mPsbVQo0a68eIL3OAxnm";

StringBuilder dataToSend = new StringBuilder();

dataToSend.AppendLine("--" + Boundary);
dataToSend.AppendLine("Content-Type: application/xml; charset=UTF-8");

dataToSend.AppendLine("");
dataToSend.AppendLine("<?xml version=\"1.0\"?>");
dataToSend.AppendLine("<!DOCTYPE pap PUBLIC \"-//WAPFORUM//DTD PAP 2.1//EN\" \"http://www.openmobilealliance.org/tech/DTD/pap_2.1.dtd\">");
dataToSend.AppendLine("<pap>");
string myPushId = DateTime.Now.ToFileTime().ToString();
dataToSend.AppendLine("<push-message push-id=" + (char)34 + myPushId + (char)34 + " deliver-before-timestamp=" +
 (char)34 + deliverbefore + (char)34 + " source-reference=" + (char)34 + appid + (char)34 + ">");
//dataToSend.AppendLine("<push-message push-id=\"" + myPushId + "\" source-reference=\"" + appid + "\">");
dataToSend.AppendLine("<address address-value=\"" + pushPin + "\"/>");
dataToSend.AppendLine("<quality-of-service delivery-method=\"unconfirmed\"/>");
dataToSend.AppendLine("</push-message>");
dataToSend.AppendLine("</pap>");
dataToSend.AppendLine("--" + Boundary);

dataToSend.AppendLine("Content-Type: text/plain");
dataToSend.AppendLine("Push-Message-ID: " + myPushId);
dataToSend.AppendLine("");

dataToSend.AppendLine(pushedMessage);

dataToSend.AppendLine("--" + Boundary + "--");
dataToSend.AppendLine("");

byte[] bytes = Encoding.ASCII.GetBytes(dataToSend.ToString());
String httpURL = "https://cpxxxx.pushapi.eval.blackberry.com/mss/PD_pushRequest";

WebRequest tRequest;
tRequest = WebRequest.Create(httpURL);
//SetProxy(tRequest);
tRequest.Method = "POST";
//tRequest.ContentType = "text/plain";

//tRequest.ContentLength = bytes.Length;
tRequest.Credentials = new NetworkCredential(appid, password);

tRequest.PreAuthenticate = true;
tRequest.ContentType = "multipart/related; boundary=" + Boundary + ";             type=application/xml";
tRequest.ContentLength = bytes.Length;
string rawCredentials = string.Format("{0}:{1}", appid, password);
tRequest.Headers.Add("Authorization",
    string.Format(
        "Basic {0}",
        Convert.ToBase64String(Encoding.UTF8.GetBytes(rawCredentials))));

SetBasicAuthHeader(tRequest, appid, password);

Stream dataStream = tRequest.GetRequestStream();
dataStream.Write(bytes, 0, bytes.Length);
dataStream.Close();

WebResponse tResponse = tRequest.GetResponse();

dataStream = tResponse.GetResponseStream();

StreamReader tReader = new StreamReader(dataStream);

String sResponseFromServer = tReader.ReadToEnd();

tReader.Close();
dataStream.Close();
tResponse.Close();
}
catch (Exception ex1)
{
    s = ex1.Message.ToString();
}
}

But I am getting The remote server returned an error: (401) Unauthorized error. How to resolve it?

Answer 1

For production: use https://cpxxxx.pushapi.na.blackberry.com/mss/PD_pushRequest. For testing you can use pushapi.eval.blackberry.com