curl --request GET \
  --url 'https://api.stateset.com/api/v1/promotions' \
  --header 'Authorization: Bearer YOUR_API_KEY'

{
  "promotions": [
    {
      "code": null,
      "created_at": "string",
      "discount_value": null,
      "id": "string",
      "name": "string",
      "promotion_type": "string",
      "status": "string"
    }
  ],
  "total": 1
}