import { createSellerClient } from '@spree/seller-sdk'

const client = createSellerClient({
  baseUrl: 'https://your-store.com',
  jwtToken: 'eyJhbGciOi...',
  sellerId: 'sel_UkLWZg9DAJ',
})

const exchange = await client.orders.exchanges.fulfill('or_UkLWZg9DAJ', 'exch_UkLWZg9DAJ')

curl --request PATCH \
  --url http://{defaultHost}/api/v3/seller/orders/{order_id}/exchanges/{id}/fulfill \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Spree-Seller-Id: <x-spree-seller-id>' \
  --data '{}'

{
  "id": "exch_UkLWZg9DAJ",
  "number": "EX1001",
  "status": "fulfilled",
  "order_id": "or_UkLWZg9DAJ",
  "reason_id": null,
  "price_difference": "9.99",
  "approved_at": "2026-01-15T12:00:00Z",
  "received_at": "2026-01-15T12:00:00Z",
  "fulfilled_at": "2026-01-15T12:00:00Z",
  "canceled_at": null,
  "memo": null,
  "stock_location_id": "sloc_UkLWZg9DAJ"
}