PaXa Labs / 08 · Payment engineering

Payment Integration
Playground

SANDBOX · NO REAL MONEY

Explore payment APIs, webhooks, transaction states, and failure scenarios using simulated payments.

Developer simulation only. No financial transactions are processed.
01 / DEMO CHECKOUTSimulated
DEMO ORDER · ORDER-1024

PaXa Cloud Pro

Quantity: 1

RM 49.90
Subtotal RM 49.90Total RM 49.90
Simulated payment method
DEMO CARD•••• •••• •••• 4242

The payment is processed, verified by webhook, and the order is marked paid.

TRANSACTION STATEReady to Simulate
02 / PAYMENT FLOWcreated
Order created
Payment created
Customer submitted payment
Processing
Webhook received
Webhook verified
Order completed
03 / INTEGRATION STATUS
API ReadyProvider SimulatedWebhook WaitingIdempotency ReadyOrder Open
04 / DEVELOPER CONSOLE0 EVENTS
Run a scenario to inspect simulated requests, responses and webhook events.

Behind the transaction

How Payment Integration Works

Backend behaviour simulated in the browser.

1 · CREATE

Backend creates the payment.

2 · CHECKOUT

Customer chooses a method.

3 · PROCESS

Provider processes it.

4 · WEBHOOK

Provider sends the result.

5 · VERIFY

Backend validates the event.

6 · FULFIL

Application marks it paid.

SIMULATED ARCHITECTURE

This shows a conceptual backend and payment provider. The simulation runs entirely in your browser.

  1. Customer
  2. PaXa Labs UI
  3. Backend API
  4. Payment Provider
  5. Webhook
  6. Backend
  7. Order Updated

Concepts Demonstrated

REST APIAsync ProcessingPayment State MachineWebhooksWebhook VerificationIdempotencyFailure HandlingNetwork Recovery