public async Task <IActionResult> ConfirmEmail(string userId, string code)
        {
            if (userId == null || code == null)
            {
                return(new RedirectResult("/authentication/failed.html"));
            }
            var user = await _userAccountService.FindByIdAsync(userId);

            if (user == null)
            {
                return(new NotFoundObjectResult("User id " + userId + "not found"));
            }
            var result = await _userAccountService.ConfirmEmailAsync(user, code);

            return(new RedirectResult("/app/#/verified"));
        }