controller_buckaroo_webhook
Handle Buckaroo checkout callbacks.
Accept JSON POST pushes at /buckaroo/webhook and
/buckaroo/webhook/:payment_nr. Verify the authorization header over the original
body before decoding and processing the transaction. Verified debit updates enter
the shared receive policy; processing failures return 500 for retry.
Generate the endpoint through its dispatch rule, for example:
{% url buckaroo_payment_webhook_generic %}
This provider-facing endpoint uses the verification described above rather than an administrator login.