{
  "invoiceNumber": "RN-2026-000123",
  "invoiceType": "Normal",
  "transactionType": "Sale",
  "cashier": "Operater 1",
  "buyerId": "10:123456789",
  "referentDocumentNumber": "",
  "referentDocumentDT": "",
  "note": "Primer ulaznog racuna iz ERP-a",
  "payment": [
    {
      "type": "Cash",
      "amount": 1000.00
    },
    {
      "type": "Card",
      "amount": 200.00
    }
  ],
  "items": [
    {
      "name": "Artikal 1",
      "gtin": "",
      "quantity": 2,
      "unitPrice": 500.00,
      "totalAmount": 1000.00,
      "unit": "kom",
      "taxLabels": ["A"]
    },
    {
      "name": "Artikal 2",
      "gtin": "",
      "quantity": 1,
      "unitPrice": 200.00,
      "totalAmount": 200.00,
      "unit": "kom",
      "taxLabels": ["A"]
    }
  ]
}