Attassa.OAuthLinkedIn.WebRequest C# (CSharp) Method

        public string WebRequest(Method method, string url, string postData)
        {
            HttpWebRequest webRequest = null;
            StreamWriter requestWriter = null;
            string responseData = "";

            webRequest = System.Net.WebRequest.Create(url) as HttpWebRequest;
            webRequest.Method = method.ToString();
            webRequest.ServicePoint.Expect100Continue = false;
            webRequest.UserAgent  = USER_AGENT;
            webRequest.Timeout = 20000;

            if (method == Method.POST)
            {
                webRequest.ContentType = "application/x-www-form-urlencoded";

                requestWriter = new StreamWriter(webRequest.GetRequestStream());
                try
                {
                    requestWriter.Write(postData);
                }
                catch
                {
                    throw;
                }
                finally
                {
                    requestWriter.Close();
                    requestWriter = null;
                }
            }

            responseData = WebResponseGet(webRequest);

            webRequest = null;

            return responseData;
        }