import { createAdminClient } from '@spree/admin-sdk'

const client = createAdminClient({
  baseUrl: 'https://your-store.com',
  secretKey: 'sk_xxx',
})

const { data: packageTypes } = await client.packageTypes.list()

spree api get /package_types

{
  "data": [
    {
      "id": "pkgtype_UkLWZg9DAJ",
      "name": "Master carton",
      "kind": "carton",
      "length": "40.0",
      "width": "30.0",
      "height": "25.0",
      "weight": null,
      "max_weight": "20.0",
      "default": false,
      "metadata": {},
      "created_at": "2026-01-15T12:00:00.000Z",
      "updated_at": "2026-01-15T12:00:00.000Z",
      "dimensions_unit": "cm",
      "weight_unit": "kg",
      "volume": "0.03",
      "seller_id": null,
      "seller_name": null
    }
  ],
  "meta": {
    "page": 1,
    "limit": 25,
    "count": 1,
    "pages": 1,
    "from": 1,
    "to": 1,
    "in": 1,
    "previous": null,
    "next": null
  }
}

{
  "error": {
    "code": "authentication_required",
    "message": "Authentication required"
  }
}