// 1. Create a Payment Order
curl -X POST https://extapi.jacuji.com/payments/orders \
-H "Content-Type: application/json" \
-d '{
    "amount": 500,
    "description": "Payment for #ORD123"
}'

// 2. Redirect user to checkout URL
// The checkout URL is:
"https://extapi.jacuji.com/checkout/{orderId}"