In order to avoid the possibility of duplicate transactions caused by such reasons such as having a buyer click twice before an order can be confirmed if no prevention or having the network being disconnected, causing a retry, we added a safeguard mechanism to our checkout calls whereby a UUID generated before the call to the checkout API and independent of client retries will be blocked by the ACME servers.
A duplicate check will return a 409 http response code.
Please use the following header x-acme-request-uuid and create a UUID in the following form:
UUID
In its canonical textual representation, the sixteen octets of a UUID are represented as 32 lowercase hexadecimal (base 16) digits, displayed in five groups separated by hyphens, in the form 8-4-4-4-12 for a total of 36 characters (32 alphanumeric characters and four hyphens).
For example: 123e4567-e89b-12d3-a456-426655440000
HTTP Request Header
"x-acme-request-uuid"
APIs
| API | Description |
| B2C Checkout | Placing an order with a shopping cart |
| Event Templates - B2C | APIs to help you market your events. Ex: A calendar of days where the event is available and not sold out |
| Shopping Cart | Building and storing shopping carts on our site |
| Reservations | Reservations API to reserve tickets while you are performing a checkout |