/C#/403 forbidden error using Windows Forms

403 forbidden error using Windows Forms

/* Use Rest Client
https://www.nuget.org/packages/RestSharp/
*/

var client = new RestClient("https://example.com/openam/oauth2/access_token?grant_type=authorization_code&realm=/cbpgatqa");
var request = new RestRequest(Method.POST);

request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
request.AddHeader("Cache-Control", "no-cache");
request.AddHeader("Authorization", "Basic MzE4OGQwYjQtZTRlOC00MTZjLTg5NjAtZDNlYWFhMmNjY2IxOkx3NiVBa0x4NWtPM01rJTJ5RWwxbW1jR0ZYZmhTQmk1NHhIRCpzNiUyVUd5WXN0MCNVbyNMNWQhcVlpZE93djc=");
request.AddParameter("undefined", "code=" + AuthCode + "&redirect_uri=http%3A%2F%2Flocalhost%3A8080", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);

using (var ms = new MemoryStream(Encoding.Unicode.GetBytes(response.Content)))
{
  // Deserialization from JSON  
  DataContractJsonSerializer deserializer = new DataContractJsonSerializer(typeof(Token));
  Token token = (Token)deserializer.ReadObject(ms);
  return  userinfo=  GetuserInfo(token.id_token);
}

Source: stackoverflow.com

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