{"ok":true,"service":"qrpay-api","version":"1.0.0","docs":"/docs","endpoints":["POST /api/v1/payments","GET  /api/v1/payments/{order_id}","POST /api/v1/payments/{order_id}/check","GET  /api/v1/transactions   (tương thích Xgate)","GET  /qr/{order_id}.png","GET  /checkout/{order_id}"]}