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

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

const exchange = await client.orders.exchanges.create('or_UkLWZg9DAJ', {
  reason_id: 'rar_UkLWZg9DAJ',
  stock_location_id: 'sloc_UkLWZg9DAJ',
  items: [
    { fulfillment_item_id: 'fi_UkLWZg9DAJ', new_variant_id: 'variant_k5nR8xLq', quantity: 1 },
  ],
})

spree api post /orders/{order_id}/exchanges -d '{"reason_id":"rar_UkLWZg9DAJ","stock_location_id":"sloc_UkLWZg9DAJ","items":[{"fulfillment_item_id":"fi_UkLWZg9DAJ","new_variant_id":"variant_k5nR8xLq","quantity":1}]}'

{
  "id": "exch_gbHJdmfrXB",
  "number": "EX1002",
  "status": "requested",
  "order_id": "or_gbHJdmfrXB",
  "reason_id": null,
  "price_difference": "9.99",
  "approved_at": null,
  "received_at": null,
  "fulfilled_at": null,
  "canceled_at": null,
  "memo": "Wrong size",
  "metadata": {},
  "created_at": "2026-01-15T12:00:00.000Z",
  "updated_at": "2026-01-15T12:00:00.000Z",
  "stock_location_id": "sloc_UkLWZg9DAJ",
  "created_by_id": "adm_UkLWZg9DAJ",
  "created_by_type": "admin_user"
}