POTB Online Payment API

Unified hosted-checkout API for PayMongo, Xendit, and Bux.

• POST /api/payments — create a checkout
• POST /api/payments/paymongo/webhook
• POST /api/payments/xendit/webhook
• POST /api/payments/bux/webhook
• GET /api/payments/paymongo/status?id=…
• GET /api/payments/xendit/status?id=… (or ?external_id=…)
• GET /api/payments/bux/status?req_id=…
• POST /api/payments/paymongo/refund (+ GET to retrieve/list)
• GET /api/health

See the README for request/response examples.