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Send JSON data to external WebService from AX2009 using bearer token Authentication

Hi everyone,

key words here are Bearer token Authentication (not basic authentication).

Did anyone already consume external webservice from AX2009 using bearer token auth ?

following code won't work and I still get either "The remote server returned an error: (415) Unsupported Media Type." or

"The remote server returned an error: (401) Unauthorized." :

   System.Net.HttpWebRequest       request;
    System.Net.HttpWebResponse      response;
    System.Byte[]                   byteArray, byteArrayToken;
    System.IO.Stream                dataStream;
    System.IO.StreamReader          streamReader;
    System.Net.ServicePoint         servicePoint;
    System.Net.ServicePointManager servicePointManager;
    System.Net.WebHeaderCollection httpHeader;
    CLRObject                       clrObj;
    System.Text.Encoding            utf8;
    str                             bodyData;
   str                            token = 'xxxxxxxxxxx';
    XYZParameters                  xyzParameters = XYZParameters::find();
   ;

   bodyData = "{'xxxx': 'yyyy'}"

   new InteropPermission(InteropKind::ClrInterop).assert();
    clrObj = System.Net.WebRequest::Create(xyzParameters.URL);
    System.Net.ServicePointManager::set_Expect100Continue(false);

   httpHeader = new System.Net.WebHeaderCollection();

   request = clrObj;
    request.set_Method("POST");
    request.set_ContentType("application/json");

   utf8 = System.Text.Encoding::get_UTF8();

    byteArray = utf8.GetBytes(bodyData);
    request.set_ContentLength(byteArray.get_Length());

   // first possibility : passing clear token
   // won't work. CLR Error on GetRequestStream line below : "The remote server returned an error: (415) Unsupported Media Type."
   httpHeader.Add("Authorization", strfmt("bearer %1", token));

   // second possibility : passing encoded token
   // won't work. CLR Error on GetRequestStream line below: "The remote server returned an error: (401) Unauthorized." though token is correct and    authorized when tested elsewhere
   byteArrayToken = utf8.GetBytes(token);
    byteTokenStr = System.Convert::ToBase64String(byteArrayToken);
    httpHeader.Add("Authorization", strfmt("bearer %1", byteTokenStr));

   request.set_Headers(httpHeader);

   dataStream = request.GetRequestStream(); // line where CLR error is thrown
   dataStream.Write(byteArray, 0, byteArray.get_Length());
   dataStream.Close();