public LoginValidator(IUserManager userManager, ISignInManager signInManager)
{
RuleFor(x => x.Email).EmailAddress().NotEmpty().MustAsync(async(model, email, context) =>
{
var userResult = await userManager.GetUserByEmail(email);
return(userResult != null);
}).WithMessage($"Invalid Email");
RuleFor(x => x.Password).NotEmpty().WithMessage($"Password can't be empty")
.MustAsync(async(model, email, context) =>
{
var user = await userManager.GetUserByEmail(model.Email);
var passwordResult = await signInManager.CheckPass(user, model.Password, false);
return(passwordResult.Succeeded);
}).WithMessage($"Incorrect password");
}