public async Task <Unit> Handle(ResetPasswordRequest request, CancellationToken cancellationToken)
{
var user = await userManager.FindByEmailAsync(request.Email);
if (user == null)
{
throw new NotExistentUserException();
}
var token = await userManager.GeneratePasswordResetTokenAsync(user);
var model = MailModel.Create(
"Recupero de contraseña",
new ResetPasswordEmailData(token, $"{frontendOptions.Url}{frontendOptions.ForgotPassword}"));
await mailingService.SendEmailAsync(
user.Email, model.Subject, await request.GetEmailBody(model));
return(Unit.Value);
}