Stripe

Stripe sends a webhook on a successful payment. Give it an incoming address from the dashboard and say once which of its fields go where on the receipt. Nothing to build on their side.

How to set it up

1. 01Dashboard → Notifications → incoming: create a hook and copy its address.
2. 02In Stripe, add a webhook for a successful payment that posts to that address.
3. 03Map their JSON onto the template for the receipt; the dashboard shows the last payload so you can see the field names.