curl --request GET \
  --url https://production.trackstarhq.com/carrier/invoice-line-items/{invoice_line_item_id} \
  --header 'x-trackstar-access-token: <x-trackstar-access-token>' \
  --header 'x-trackstar-api-key: <x-trackstar-api-key>'

{
  "data": {
    "id": "invoice_line_item_id",
    "created_date": "2022-01-01T00:00:00Z",
    "updated_date": "2022-01-02T05:05:05Z",
    "transaction_date": "2025-11-15T00:00:00Z",
    "account_id": "account_id",
    "invoice_id": "invoice_id",
    "tracking_number": "tracking_number",
    "gross_cost": 10,
    "net_cost": 8,
    "charge_description": "Freight Charge",
    "raw": "<unknown>",
    "trackstar_tags": [
      "tag1",
      "tag2",
      {
        "tag3": "value3"
      }
    ],
    "trackstar_created_date": "2023-11-07T05:31:56Z",
    "trackstar_updated_date": "2023-11-07T05:31:56Z"
  }
}