Get All Invoice Items

curl --request GET \
     --url 'https://www.zep-online.de/zepinstanz/next/api/v1/invoice-items' \
     --header 'Accept: application/json' \
     --header 'Authorization: Bearer {token}'

{
	"data": [
        {
            "id": 1,
            "invoice_id": 101,
            "description": "Software Development Services",
            "quantity": 40,
            "unit_price": 85.00,
            "total_price": 3400.00,
            "tax_rate": 19.0,
            "tax_amount": 646.00,
            "net_amount": 3400.00,
            "gross_amount": 4046.00,
            "created": "2024-01-15T10:30:00.000000Z",
            "modified": "2024-01-15T10:30:00.000000Z"
        },
        {
            "id": 2,
            "invoice_id": 102,
            "description": "Consulting Services",
            "quantity": 20,
            "unit_price": 120.00,
            "total_price": 2400.00,
            "tax_rate": 19.0,
            "tax_amount": 456.00,
            "net_amount": 2400.00,
            "gross_amount": 2856.00,
            "created": "2024-02-01T14:20:00.000000Z",
            "modified": "2024-02-01T14:20:00.000000Z"
        }
	]
}