private string Get(string uri, Dictionary <string, string> parameters)
        {
            _credentials.LogRequest(_credential);
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);

            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                if ((int)response.StatusCode == 429)
                {
                    _accessToken = GetAccessToken();
                    parameters["access_token"] = _accessToken;
                    return(Get(uri, parameters));
                }
                else
                {
                    using (Stream stream = response.GetResponseStream())
                        using (StreamReader reader = new StreamReader(stream))
                        {
                            return(reader.ReadToEnd());
                        }
                }
            }
        }