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

{
  "backorders": [
    {
      "backorder_number": "string",
      "created_at": "string",
      "customer_id": "string",
      "expected_date": null,
      "id": "string",
      "order_id": "string",
      "priority": "string",
      "promised_date": null,
      "quantity_fulfilled": "string",
      "quantity_ordered": "string",
      "quantity_remaining": "string",
      "sku": "string",
      "status": "string"
    }
  ],
  "total": 1
}