public async Task <ActionResult> ResetPassword(string email)
        {
            var user = await _userManager.FindByNameAsync(email);

            if (user != null)
            {
                var resetToken = await _userManager.GeneratePasswordResetTokenAsync(user);

                await _emailService.SendResetPasswordEmailAsync(email, resetToken);

                return(Ok(resetToken));
            }
            return(null);
        }