public static T callWSGet<T>(string url, string method, bool isAuth)
        {
            T objResponse;
            var httpWebRequest = (HttpWebRequest)WebRequest.Create("http://wssommapositiva/" + url);
            httpWebRequest.ContentType = "text/json";
            httpWebRequest.Method = method;
            // Necessario per token
            if (isAuth)
                httpWebRequest.Headers.Add("X-Token", HttpContext.Current.Session["Token"].ToString());

                var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
                using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
                {
                    objResponse = JsonConvert.DeserializeObject<T>(streamReader.ReadToEnd());
                }

            return objResponse;
        }