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Express demo

Build a server-rendered ticket checkout with Express. One server-created order supports embedded, modal, and hosted payment.

What you’ll build

  • An Express 5 POST handler with explicit validation and safe errors
  • Typed order construction with the Inttegro TypeScript SDK
  • Server-owned API and idempotency keys
  • Server-rendered HTML progressively enhanced with @inttegro/js

See the flow

The gallery shows the same order embedded, in a modal, and on Inttegro Pages. The API key and order SDK remain on the server.

Express desktop embedded Checkout
Afterglow Sessions Express ticket page with Inttegro Checkout embedded beside the reservation details. Shown without a previously attached payment method.
Embedded. The checkout is mounted within Express’s server-rendered ticket experience. Shown without a previously attached payment method.
Express desktop modal Checkout
Afterglow Sessions Express ticket page dimmed behind an Inttegro Checkout modal. Shown with an attached payment method.
Modal. Checkout opens above the event page and can close without a full-page navigation. Shown with an attached payment method.

Select any image to view it full screen.

Run the demo

Install a supported Node.js release, set the environment values, and start the development server. The released README has the exact commands.

Key files

  1. src/checkout.ts creates the ticket order.
  2. src/app.ts handles validation, safe errors, and the response.
  3. public/checkout-presentations.js presents Checkout in all three modes.

Before you ship

Keep the API key on the server. Link the booking to its Inttegro order and verify payment before issuing a ticket.

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