Cloud Integration Overview

A typical PayIn Cloud integration has three parts: API calls, customer payment experience, and webhook processing.

API calls

Your backend creates payment orders and checks payment state through PayIn Cloud APIs. API keys should only be stored server-side. See API keys and order payments.

Payment experience

Customers can be redirected to a hosted payment page or shown payment instructions inside your own product experience.

Webhook processing

PayIn Cloud sends payment status events to your webhook endpoint. Your system should verify signatures, store event IDs, and update your order or account state idempotently. See PayIn Cloud webhooks.

Production checklist

Before go-live, review the full production launch checklist. At minimum:

• Sandbox order flow has been tested end to end
• Webhook signature verification is implemented
• Duplicate webhook events are handled safely
• Customer support and refund policy are defined
• Production API keys are stored securely
• Accounting or reconciliation workflow is ready

Related Cloud docs

• Sandbox integration
• API keys
• Order payments
• Hosted payment page
• Webhooks
• Reconciliation
• Production launch
• Support and incidents