curl --request DELETE \
  --url https://api.elections.kalshi.com/trade-api/v2/portfolio/orders/batched \
  --header 'Content-Type: application/json' \
  --header 'KALSHI-ACCESS-KEY: <api-key>' \
  --header 'KALSHI-ACCESS-SIGNATURE: <api-key>' \
  --header 'KALSHI-ACCESS-TIMESTAMP: <api-key>' \
  --data '
{
  "ids": [
    "<string>"
  ],
  "orders": [
    {
      "order_id": "<string>",
      "subaccount": 0
    }
  ]
}
'

{
  "orders": [
    {
      "order_id": "<string>",
      "reduced_by_fp": "10.00",
      "error": {
        "code": "<string>",
        "message": "<string>",
        "details": "<string>",
        "service": "<string>"
      }
    }
  ]
}