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

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

// `rules` is the rate's whole targeting — what you send replaces what it holds.
// `position` moves the rate: 1 is tried first, and the first match wins.
//
// Every rule has to hold, so this charges 15% only on camera sales worth 50 or
// more. Call ruleTypes() for the kinds this marketplace has.
const commissionRate = await client.commissionRates.update('crate_a1b2c3', {
  value: '15',
  position: 1,
  rules: [
    { type: 'category_rule', preferences: { category_ids: ['ctg_d4e5f6'] } },
    { type: 'item_total_rule', preferences: { min_amount: '50' } },
  ],
})

spree api patch /commission_rates/{id} -d '{"value":"15","position":1,"rules":[{"type":"category_rule","preferences":{"category_ids":["ctg_d4e5f6"]}},{"type":"item_total_rule","preferences":{"min_amount":"50"}}]}'

{
  "id": "crate_UkLWZg9DAJ",
  "name": "Standard",
  "code": null,
  "enabled": true,
  "position": 1,
  "kind": "percentage",
  "tax_inclusive": false,
  "include_shipping": false,
  "metadata": {},
  "deleted_at": null,
  "created_at": "2026-01-15T12:00:00.000Z",
  "updated_at": "2026-01-15T12:00:00.000Z",
  "value": "15",
  "commission_tax_rate": null,
  "amounts": {},
  "bounds": {},
  "global": true,
  "rules": []
}