public async Task <IActionResult> OnPostAsync(string returnUrl = null) { returnUrl = returnUrl ?? Url.Content("~/"); if (ModelState.IsValid) { // This doesn't count login failures towards account lockout // To enable password failures to trigger account lockout, set lockoutOnFailure: true var result = await _signInManager.PasswordSignInAsync(Input.Email, Input.Password, Input.RememberMe, lockoutOnFailure : true); if (result.Succeeded) { var user = _user.FindWithEmail(Input.Email); var counter = _shoppingCart.Count(c => c.ApplicationUserId == user.Id); HttpContext.Session.SetInt32("Counter", counter); _logger.LogInformation("User logged in."); return(LocalRedirect(returnUrl)); } if (result.RequiresTwoFactor) { return(RedirectToPage("./LoginWith2fa", new { ReturnUrl = returnUrl, RememberMe = Input.RememberMe })); } if (result.IsLockedOut) { _logger.LogWarning("User account locked out."); return(RedirectToPage("./Lockout")); } else { ModelState.AddModelError(string.Empty, "Invalid login attempt."); return(Page()); } } // If we got this far, something failed, redisplay form return(Page()); }