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

{
  "carts": [
    {
      "cart_number": "string",
      "created_at": "string",
      "currency": "string",
      "customer_email": null,
      "customer_id": null,
      "discount_amount": "string",
      "grand_total": "string",
      "id": "string",
      "items": [],
      "order_id": null,
      "order_number": null,
      "payment_method": null,
      "shipping_amount": "string",
      "shipping_method": null,
      "status": "string",
      "subtotal": "string",
      "tax_amount": "string"
    }
  ],
  "total": 1
}