01
Create checkout
Use mock mode now or real sandbox credentials later.
INTERNAL TECHNICAL DEMONSTRATION
One payment model.
Two BNPL providers.
A working reference implementation for checkout, callbacks, webhooks, authorization, capture, cancellation, refunds, and reconciliation.
What this proves
The integration can be engineered from the published API documentation. Provider involvement is limited to credentials, merchant configuration, and production approval.
02
Provider controls
Register server callbacks when using real sandboxes.
Public callback base
—
Use a public HTTPS tunnel for real provider webhooks. Localhost is sufficient for mock mode.
Internal order
→Provider adapter
→Hosted checkout
Webhook + reconciliation
03
Payment ledger
Each trace connects the documented provider operation to its sanitized request, provider response, normalized internal status, system action, redirect or webhook, and official source.
No sandbox payments yet
Create a checkout session to begin the demonstration.
04
Webhook audit
Persisted intake records demonstrate duplicate detection and processing outcomes.
No webhook events received.