public ActionResult ConnectionTest()
        {
            List<String> shopping_carts = new List<string>();// change data type to model (not yet created)

            string sql = " SELECT * FROM shopping_cart ";
            var connectionConfig = new DB.MySqlConfig();
            MySqlConnection con = new MySqlConnection(connectionConfig.getConfig());

            var cmd = new MySqlCommand(sql, con);

            con.Open();

            MySqlDataReader reader = cmd.ExecuteReader();

            while (reader.Read())
            {
                shopping_carts.Add(Convert.ToString(reader["total_price"]));
            }

            return View();
        }