System.Net.WebException:The remote server returned an error: (415) Unsupported MEDIA TYPE

I am having the problems with a bit of code that accesses a RESTful Web service. Running This code, it errors out at var HttpResponse = (HttpWebResponse) httpwebrequest.getresponse (); And the exception returned is: "System.Net.WebException:The remote server returned an error: (415) Unsupported MEDIA TYP E. "

       Public BOOLCreateAccount (stringMyUserName,stringUrlstringAuthtoken) {        Try{HttpWebRequest HttpWebRequest=(HttpWebRequest) webrequest.create (URL); Httpwebrequest.contenttype="Application/json"; Httpwebrequest.mediatype="Application/json"; Httpwebrequest.accept="Application/json"; Httpwebrequest.method="POST"; WebHeaderCollection Headers=Newwebheadercollection (); Headers. ADD ("Authorization:token"+Authtoken); Httpwebrequest.headers=headers; using(StreamWriter StreamWriter =NewStreamWriter (Httpwebrequest.getrequeststream ())) {StreamWriter.Write ("{username: '"+myusername+"'}"); }            varHttpResponse = (HttpWebResponse) httpwebrequest.getresponse ();//fails on the line.            using(varStreamReader =NewStreamReader (Httpresponse.getresponsestream ())) {JavaScriptSerializer Jsserializer=NewJavaScriptSerializer (); stringJSON =Streamreader.readtoend (); }            return true; } Catch(WebException e) {Throwe; return false; }        //return true;}

I have tried various things for the ContentType, mediatype, and Accept, but the working example given to me by the develop Er of the service supplies-h "Content-type:application/json" to curl, so it would seem that ' Application/json ' is the CO Rrect value. He also does--data-binary, which I assume StreamWriter does for me.

Does anyone know what might is causing this error?

Figured it out.

When I do:

   New webheadercollection ();   Headers. ADD (""+Authtoken);    = headers;

I accidentally blow away all of the existing headers this were created by doing:

        " Application/json " ;        Httpwebrequest.mediatype="application/json";        Httpwebrequest.accept="application/json";         " POST ";

The answer is to move the code where I create the header with the Auth token above the code where I set the other headers.

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