curl --request POST \
  --url https://sandbox.ntxpay.com/api/oxxo/cash-in \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "amountCentavos": 20000,
  "customerName": "Juan Perez",
  "customerTaxId": "PEPJ800101ABC",
  "externalId": "order-xyz-789"
}
'

{
  "id": 33333,
  "status": "PENDING",
  "barcode": "012345678901234567",
  "referenceNumerical": "12345-67890",
  "checkoutUrl": "https://pay.ntxpay.com/oxxo/abc",
  "expiresAt": "2026-05-20T23:59:59.000Z",
  "amountCentavos": 20000
}