AeroFSSDK.Impl.AeroFSAuthClientImpl.ExchangeAuthorizationCodeForAccessToken C# (CSharp) Method

        public string ExchangeAuthorizationCodeForAccessToken(string code)
        {
            var uri =
                "{0}/auth/token".FormatWith(HostName);

            var data =
                "grant_type=authorization_code" +
                "&code={0}".FormatWith(code) +
                "&client_id={0}".FormatWith(ClientID) +
                "&client_secret={0}".FormatWith(ClientSecret) +
                "&redirect_uri={0}".FormatWith(RedirectUri);

            var req = (HttpWebRequest)WebRequest.Create(uri);
            req.Method = "POST";
            req.ContentType = "application/x-www-form-urlencoded";

            var bytes = System.Text.Encoding.ASCII.GetBytes(data);
            req.ContentLength = bytes.Length;
            using (var os = req.GetRequestStream())
            {
                os.Write(bytes, 0, bytes.Length);
            }

            using (var resp = req.GetResponse())
            {
                using (var reader = new StreamReader(resp.GetResponseStream()))
                {
                    var anonType = new { access_token = string.Empty, token_type = string.Empty, expires_in = 0, scope = string.Empty };
                    return JsonConvert.DeserializeAnonymousType(reader.ReadToEnd(), anonType).access_token;
                }
            }
        }