MegaApi.Session.GetNextRequest C# (CSharp) Method

        private HttpWebRequest GetNextRequest()
        {
            UriBuilder ub = new UriBuilder(ApiRequestUrl);
            ub.Query += string.Format("id={0}", SequenceNumber);
            if (!string.IsNullOrEmpty(SessionId))
            {
                ub.Query += string.Format("&sid={0}", SessionId);
            }
            Uri uri = ub.Uri;

            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
            request.Method = "POST";
            request.ContentType = "text/plain;charset=UTF-8";
            request.Timeout = 10000;
            return request;
        }