gistfile1.js

var stripe = require('stripe')('YOUR_API_KEY');

exports.create = function(req, res, next) {
  stripe.customers.create(
    { email: user.email, plan: 'YOUR_PLAN_ID', card: req.body.stripeToken },
    function(err, customer) {
      if (err) return next(err);
      user.customerToken = customer.id;
      // Save your user, and redirect
    }
  );
};