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Hs:payment Integration by danielleit241

Name: Hs:payment Integration
Author: danielleit241

File contents

Payment Integration

Production-proven payment processing with SePay (Vietnamese banks), Polar (global SaaS), and Stripe (global infrastructure).

When to Use

Payment gateway integration (checkout, processing)
Subscription management (trials, upgrades, billing)
Webhook handling (notifications, idempotency)
QR code payments (VietQR, NAPAS)
Multi-provider order management

Platform Selection

Platform	Best For
SePay	Vietnamese market, VND, bank transfers, VietQR
Polar	Global SaaS, subscriptions, automated benefits (GitHub/Discord)
Stripe	Enterprise payments, Connect platforms, custom checkout

Quick Reference

SePay

references/sepay/overview.md - Auth, supported banks
references/sepay/api.md - Endpoints, transactions
references/sepay/webhooks.md - Setup, verification
references/sepay/sdk.md - Node.js, PHP, Laravel
references/sepay/qr-codes.md - VietQR generation
references/sepay/best-practices.md - Production patterns

Polar

references/polar/overview.md - Auth, MoR concept
references/polar/products.md - Pricing models
references/polar/checkouts.md - Checkout flows
references/polar/subscriptions.md - Lifecycle management
references/polar/webhooks.md - Event handling
references/polar/benefits.md - Automated delivery
references/polar/sdk.md - Multi-language SDKs
references/polar/best-practices.md - Production patterns

Stripe

references/stripe/stripe-best-practices.md - Integration design
references/stripe/stripe-sdks.md - Server SDKs
references/stripe/stripe-js.md - Payment Element
references/stripe/stripe-cli.md - Local testing
references/stripe/stripe-upgrade.md - Version upgrades
External: https://docs.stripe.com/llms.txt

Multi-Provider

references/multi-provider-order-management-patterns.md - Unified orders, currency conversion

Scripts

scripts/sepay-webhook-verify.js - SePay webhook verification
scripts/polar-webhook-verify.js - Polar webhook verification
scripts/checkout-helper.js - Checkout session generator

Key Capabilities

Platform	Highlights
SePay	QR/bank/cards, 44+ VN banks, webhooks, 2 req/s
Polar	MoR, subscriptions, usage billing, benefits, 300 req/min
Stripe	CheckoutSessions, Billing, Connect, Payment Element

Implementation

General flow: auth → products → checkout → webhooks → events

---name: hs-payment-integrationdescription: Integrate payments with SePay (VietQR), Polar, and Stripe. Checkout, webhooks, subscriptions, QR codes, and multi-provider orders.license: MIT---# Payment IntegrationProduction-proven payment processing with SePay (Vietnamese banks), Polar (global SaaS), and Stripe (global infrastructure).## When to Use- Payment gateway integration (checkout, processing)- Subscription management (trials, upgrades, billing)- Webhook handling (notifications, idempotency)- QR code payments (VietQR, NAPAS)- Multi-provider order management## Platform Selection| Platform | Best For || ---------- | --------------------------------------------------------------- || **SePay** | Vietnamese market, VND, bank transfers, VietQR || **Polar** | Global SaaS, subscriptions, automated benefits (GitHub/Discord) || **Stripe** | Enterprise payments, Connect platforms, custom checkout |## Quick Reference### SePay- `references/sepay/overview.md` - Auth, supported banks- `references/sepay/api.md` - Endpoints, transactions- `references/sepay/webhooks.md` - Setup, verification- `references/sepay/sdk.md` - Node.js, PHP, Laravel- `references/sepay/qr-codes.md` - VietQR generation- `references/sepay/best-practices.md` - Production patterns### Polar- `references/polar/overview.md` - Auth, MoR concept- `references/polar/products.md` - Pricing models- `references/polar/checkouts.md` - Checkout flows- `references/polar/subscriptions.md` - Lifecycle management- `references/polar/webhooks.md` - Event handling- `references/polar/benefits.md` - Automated delivery- `references/polar/sdk.md` - Multi-language SDKs- `references/polar/best-practices.md` - Production patterns### Stripe- `references/stripe/stripe-best-practices.md` - Integration design- `references/stripe/stripe-sdks.md` - Server SDKs- `references/stripe/stripe-js.md` - Payment Element- `references/stripe/stripe-cli.md` - Local testing- `references/stripe/stripe-upgrade.md` - Version upgrades- External: https://docs.stripe.com/llms.txt### Multi-Provider- `references/multi-provider-order-management-patterns.md` - Unified orders, currency conversion### Scripts- `scripts/sepay-webhook-verify.js` - SePay webhook verification- `scripts/polar-webhook-verify.js` - Polar webhook verification- `scripts/checkout-helper.js` - Checkout session generator## Key Capabilities| Platform | Highlights || ---------- | -------------------------------------------------------- || **SePay** | QR/bank/cards, 44+ VN banks, webhooks, 2 req/s || **Polar** | MoR, subscriptions, usage billing, benefits, 300 req/min || **Stripe** | CheckoutSessions, Billing, Connect, Payment Element |## Implementation**General flow:** auth → products → checkout → webhooks → events

Frequently asked questions

Hs:payment Integration