var request = WebRequest.CreateHttp(loginUriBuilder.Uri);
            request.ContentType = "application/json";
            var inCookies = new CookieContainer();
            var outCookies = new CookieContainer();
            request.CookieContainer = inCookies;
            //var cookie = new Cookie("grafana_sess", "47f17f1ecae59892");
            //inCookies.Add(cookie);
            request.Method = "POST";
            var reqStream = request.GetRequestStream();
            var data = Encoding.UTF8.GetBytes("{\"user\":\"agent\",\"email\":\"\",\"password\":\"agent\"}");
            reqStream.Write(data, 0, data.Length);
            reqStream.Close();
            var resp = request.GetResponse();
            var enumarator = (resp as HttpWebResponse).Cookies.GetEnumerator();
            checked
            {
                while (enumarator.MoveNext())
                {
                    var obj = enumarator.Current;
                }
            }