public IActionResult Authenticate([FromBody] AuthenticateModel model)
        {
            Debug.Assert(_usersDAO != null, nameof(_usersDAO) + " != null");
            var user = _usersDAO.Authenticate(model.Username, model.Password);

            if (user == null)
            {
                return(BadRequest(new { message = "Username or password is incorrect." }));
            }

            Console.WriteLine(user.IdUser);
            Console.WriteLine(user.Pseudo);
            return(Ok(user));
        }