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

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

const deliveryZone = await client.deliveryZones.create({
  name: 'US North-East',
  members: [
    { member_type: 'country', country_code: 'US' },
    { member_type: 'postal_code', country_code: 'US', postal_code_prefix: '10' },
  ],
})

spree api post /delivery_zones -d '{"name":"US North-East","members":[{"member_type":"country","country_code":"US"},{"member_type":"postal_code","country_code":"US","postal_code_prefix":"10"}]}'

{
  "id": "dz_UkLWZg9DAJ",
  "name": "US North-East",
  "description": null,
  "members": [
    {
      "id": "dzm_UkLWZg9DAJ",
      "member_type": "country",
      "country_code": "US",
      "state_code": null,
      "postal_code_prefix": null,
      "postal_code_from": null,
      "postal_code_to": null,
      "country_name": "United States",
      "state_name": null,
      "created_at": "2026-01-15T12:00:00.000Z",
      "updated_at": "2026-01-15T12:00:00.000Z"
    },
    {
      "id": "dzm_gbHJdmfrXB",
      "member_type": "postal_code",
      "country_code": "US",
      "state_code": null,
      "postal_code_prefix": "10",
      "postal_code_from": null,
      "postal_code_to": null,
      "country_name": "United States",
      "state_name": null,
      "created_at": "2026-01-15T12:00:00.000Z",
      "updated_at": "2026-01-15T12:00:00.000Z"
    }
  ],
  "created_at": "2026-01-15T12:00:00.000Z",
  "updated_at": "2026-01-15T12:00:00.000Z",
  "delivery_profile_id": "fp_UkLWZg9DAJ",
  "delivery_origin_group_id": "og_UkLWZg9DAJ",
  "delivery_method_ids": []
}