const options = {method: 'GET'};

fetch('https://api.dolfinai.co/i/{token}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "documentNumber": "<string>",
  "currency": "<string>",
  "customerName": "<string>",
  "organisationName": "<string>",
  "totalAmount": 123,
  "amountPaid": 123,
  "amountDue": 123,
  "issueDate": "2023-11-07T05:31:56Z",
  "dueDate": "2023-11-07T05:31:56Z",
  "memo": "<string>",
  "organisationLogoUrl": "<string>",
  "organisationPrimaryColour": "<string>"
}