public async Task <IActionResult> Register(RegisterViewModel model, string returnUrl = null)
        {
            ViewData["ReturnUrl"] = returnUrl;
            if (ModelState.IsValid)
            {
                var user = new ApplicationUser {
                    UserName = model.Email, Email = model.Email
                };
                var userInfo = new User {
                    UserName = model.Email, Email = model.Email
                };
                var result = await _userServer.CreateUserAsync(userInfo, model.Password);

                if (result == RegisterResult.Success)
                {
                    _logger.LogInformation("User created a new account with password.");
                    return(RedirectToLocal(returnUrl));
                }
            }

            // If we got this far, something failed, redisplay form
            return(View(model));
        }