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: 'rr_UkLWZg9DAJ',
})

spree api post /orders/{order_id}/refunds -d '{"payment_id":"pay_UkLWZg9DAJ","amount":"5.00","refund_reason_id":"rr_UkLWZg9DAJ"}'

{
  "id": "re_UkLWZg9DAJ",
  "transaction_id": "BGS-c5ae59a82a25",
  "amount": "5.00",
  "payment_id": "py_UkLWZg9DAJ",
  "refund_reason_id": "rr_UkLWZg9DAJ",
  "originator_id": null,
  "originator_type": null,
  "metadata": {},
  "created_at": "2026-01-15T12:00:00.000Z",
  "updated_at": "2026-01-15T12:00:00.000Z",
  "tax_amount": "0.00",
  "refunder_id": "adm_UkLWZg9DAJ",
  "refunder_type": "admin_user"
}