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

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

const promotion = await client.promotions.get('promo_UkLWZg9DAJ')

spree api get /promotions/{id}

{
  "id": "promo_UkLWZg9DAJ",
  "name": "Summer Sale",
  "description": null,
  "code": "summer",
  "starts_at": "2026-01-15T11:00:00.000Z",
  "expires_at": null,
  "usage_limit": null,
  "match_policy": "all",
  "path": null,
  "kind": "coupon_code",
  "multi_codes": false,
  "number_of_codes": null,
  "code_prefix": null,
  "promotion_category_id": null,
  "metadata": {},
  "created_at": "2026-01-15T12:00:00.000Z",
  "updated_at": "2026-01-15T12:00:00.000Z",
  "action_ids": [],
  "rule_ids": []
}