apple-pay-button.js

export default Component.extend({
  actions: {
    beginApplePay() {
      let item = this.get('item');
      let price = item.get('price');
      let paymentRequest = {
        requiredShippingContactFields: ['email', 'postalAddress'],
        countryCode: 'US',
        currencyCode: 'USD',
        total: {
          label: 'Stripe.com',
          amount:  price / 100 + ''
        }
      };

      // Stripe.applePay.buildSession(...) - A seam!
      let session = Stripe.applePay.buildSession(paymentRequest, (result, completion) => {
        this.get('onChargeSuccess')({
          shippingContact: result.shippingContact,
          token: result.token.id,
          price,
          item,
          description: `201 Created Sticker: ${item.get('name')}`
        }).then(() => {
          trySet(this, 'successMessage', 'Purchase is on its way');

          // Looks like another seam
          completion(ApplePaySession.STATUS_SUCCESS);
        }).catch(() => {
          trySet('errorMessage', 'Purchase failed');

          // Another one
          completion(ApplePaySession.STATUS_FAILURE);
        });
      }, (error) => {
        trySet(this, 'errorMessage', error.message);
      });

      // Another third-party API
      session.begin();
    }
  }
});