- Creating an API keyLive and staging keys, shown only once.
- Making your first API requestCreate an order and send the customer to the checkout.
- Setting up webhooksGet a signed notification when a payment changes.
- Verifying webhook signaturesCheck every webhook really came from the gateway.
- Reading the API logsSee each request, its status and how long it took.
- Using the PHP SDKA single-file client for PHP projects.
- Common API errors401, 402, 409, 422 and 429 and what to do.