});

//payment route
router.post('/billing/:plan_name', function(req, res, next) {
  var plan = req.params.plan_name;
  var stripeToken = req.body.stripeToken;
  console.log(stripeToken);

  if (!stripeToken) {
    req.flash('errors', { msg: 'Please provide a valid card.' });
    return res.redirect('/awesome');
  }

  User.findById({ _id: req.user._id}, function(err, user) {
    if (err) return next(err);

    stripe.customers.create({
      source: stripeToken, // obtained with Stripe.js
      plan: plan,
      email: user.email
    }).then(function(customer) {
      user.stripe.plan = customer.plan;
      user.stripe.customerId = customer.id;
      console.log(customer);
      user.save(function(err) {
        console.log("Success");
        if (err) return next(err);
        return next(null);
      });
    }).catch(function(err) {
      // Deal with an error
    });

    return res.redirect('/');

  });
});

router.post('/billing/catch_paid_invoice', function(req, res) {
    // Here you parse JSON data from Stripe
}):

If today's date <= user.active_until
  allow them access

Else
  show them an account expired message

if event type is "invoice.payment_succeeded"
  then update user.active_until to be equal to today's date + 1 month