public User(string email, string password, string name, int age)
 {
     this.email         = email;
     this.password      = password;
     this.name          = name;
     this.age           = age;
     this.newsFeed      = new Stack <Recipe>();
     this.notifications = new Stack <string>();
     this.MyMenu        = new MyMenu();
     this.followers     = new SimpleList <String>();
     this.rating        = 0;
     this.isChef        = false;
 }
        private async System.Threading.Tasks.Task updateFeedAsync()
        {
            try
            {
                HttpClient client = new HttpClient();


                //     ?  ---> para decir que van parametros SOLO EL PRIMERO
                //     &  ---> para separar un parametro de otro. :)
                client.BaseAddress = new Uri(Client.HTTP_BASE_URL + "user/feed?email=" + this.email);

                HttpResponseMessage response = await client.GetAsync(client.BaseAddress);

                //Get the json from the sever NULL if didn't match
                String json = response.Content.ReadAsStringAsync().Result;
                //Serialize the json object to a User object and assign it to the Client User
                Stack <Recipe> newFeed = JsonConvert.DeserializeObject <Stack <Recipe> >(json);
                this.newsFeed = newFeed;
            }
            catch (Exception e)
            {
                //exception
            }
        }