curl --request GET \
  --url https://api.crevio.co/v1/orders/{order_id}/order_items \
  --header 'Authorization: <api-key>'

{
  "object": "list",
  "data": [
    {
      "id": "<string>",
      "object": "<string>",
      "quantity": 123,
      "price_variant": "<string>",
      "product": "<string>",
      "order": "<string>"
    }
  ],
  "has_more": true,
  "url": "<string>"
}