Get invoice Line Items

{
  "STATUS": "OK",
  "invoice": {
    "exported-by-user-id": "",
    "project-id": "1",
    "created-by-user-firstname": "Holly",
    "fixed-cost": "",
    "status": "active",
    "date-created": "2018-05-09T08:19:48Z",
    "exported-by-user-lastname": "",
    "line-items": [
      {
        "minutes": "40",
        "date-logged-utc": "2018-05-09T07:41:00Z",
        "rate": "0",
        "decimal-hours": "0.67",
        "description": "",
        "user-first-name": "Holly",
        "billable": "1",
        "task-name": "",
        "user-id": "1",
        "task-id": "",
        "id": "1",
        "date": "2018-05-09T07:41:00Z",
        "cost": "0",
        "user-last-name": "McGill",
        "hours": "0"
      }
    ],
    "number": "1",
    "po-number": "",
    "exported-by-user-firstname": "",
    "expenses": [
      {
        "invoice-id": "1",
        "name": "TIME 1",
        "created-by-user-firstname": "Holly",
        "created-by-user-id": "1",
        "description": "",
        "created-by-user-lastname": "McGill",
        "date": "20180509",
        "id": "1",
        "cost": "200.00"
      },
      {
        "invoice-id": "1",
        "name": "HELLO",
        "created-by-user-firstname": "Holly",
        "created-by-user-id": "1",
        "description": "",
        "created-by-user-lastname": "McGill",
        "date": "20180509",
        "id": "350",
        "cost": "400.00"
      }
    ],
    "update-by-user-id": "1",
    "created-by-user-id": "1",
    "id": "1",
    "company-name": "MCG Cleaning Services",
    "edited-by-user-firstname": "Sarah",
    "total-time-decimal": "0.67",
    "total-cost": "600",
    "description": "",
    "company-id": "1",
    "exported-date": "",
    "display-date": "20180509",
    "project-name": "555 Project",
    "total-time": "40",
    "created-by-user-lastname": "McGill",
    "date-updated": "2018-05-09T08:19:48Z",
    "edited-by-user-lastname": "McGill",
    "currency-code": "EUR"
  }
}