Preview an order

Previewing an order provides insight into validation and cost an order might have on an account. We recommend most developers and platforms leverage previews before placing orders.

When previewing an order, all order validation rules are run, including buying power checks. All applicable fees and commissions are delivered in the response.


Parameter Type Param Type Required Values/Example Default
preview Form String Optional true
Whether to preview the order (should be sent with all other order parameters)


Response Definition

  "order": {
    "status": "ok",
    "commission": 3.49000000,
    "cost": 34.715100000000,
    "fees": 0,
    "symbol": "T",
    "quantity": 1,
    "side": "buy",
    "type": "market",
    "duration": "day",
    "result": true,
    "order_cost": 31.225100000000,
    "margin_change": 0,
    "request_date": "2019-05-14T15:56:47.371",
    "extended_hours": false,
    "class": "equity",
    "strategy": "equity"