Create a refund

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

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

const refund = await client.orders.refunds.create('or_UkLWZg9DAJ', {
  payment_id: 'pay_UkLWZg9DAJ',
  amount: 5.00,
  refund_reason_id: 'refrsn_UkLWZg9DAJ',
})

{
  "id": "re_UkLWZg9DAJ",
  "transaction_id": "BGS-162d0a7eaeca",
  "amount": "5.0",
  "payment_id": "py_UkLWZg9DAJ",
  "refund_reason_id": "rr_UkLWZg9DAJ",
  "reimbursement_id": null,
  "metadata": {},
  "created_at": "2026-05-21T18:11:21.881Z",
  "updated_at": "2026-05-21T18:11:21.881Z"
}