curl --request GET \
  --url https://sandbox.cucu.bo/api/v1/api/v1/invoice/xml \
  --header 'Content-Type: <content-type>' \
  --header 'cucukey: <cucukey>' \
  --data '
{
  "posId": 1,
  "invoiceNumber": 1026,
  "invoiceCode": "6D1B7B5D"
}
'

{
  "message": "<string>",
  "errors": "<string>",
  "success": true,
  "data": "<string>"
}