curl --request GET \
  --url https://api.example.com/v1/invoices/{id} \
  --header 'Authorization: Bearer <token>'

{
  "invoice": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "invoice_number": "<string>",
    "description": "<string>",
    "due_date": "2023-11-07T05:31:56Z",
    "currency": "<string>",
    "iban": "<string>",
    "customer_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "name_from": "<string>",
    "address_from": "<string>",
    "zip_from": "<string>",
    "city_from": "<string>",
    "country_from": "<string>",
    "name_to": "<string>",
    "address_to": "<string>",
    "zip_to": "<string>",
    "city_to": "<string>",
    "country_to": "<string>",
    "subtotal": 123,
    "shipping": 123,
    "discount": 123,
    "vat": 123,
    "total": 123,
    "created_at": "2023-11-07T05:31:56Z",
    "metadata": {}
  },
  "items": [
    "<unknown>"
  ]
}