# Syntax

## Verify placing order

```
POST /v{version}/accounts/{accountId}/preview/orders
```

### Description

This API endpoint enables you to validate the parameters of a new order before placing it on the platform.

### Parameters

| Type       | Name                           | Description                                                                                                                                 | Schema                                      | Default |
| ---------- | ------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------- | ------- |
| **Header** | **Authorization**   *required* | This is the authorization token that you retrieved from the first endpoint (/token).                                                        | string                                      |         |
| **Header** | **Et-App-Key**   *required*    | This is your app’s unique key that can be retrieved from the BO Companies widget in Autoshares Trader.                                      | string                                      |         |
| **Path**   | **accountId**   *required*     | This is the unique identifier of the trading account on which a new order is to be verified.                                                | integer (int32)                             |         |
| **Path**   | **version**   *required*       | This is the version of the API. Unless you have multiple versions of Autoshares Trader’s API deployed in your environment, leave it at 1.0. | string                                      | `"1"`   |
| **Query**  | **currency**   *optional*      | This is the currency in which the underlying security of the order is denominated.                                                          | string                                      |         |
| **Query**  | **exchange**   *optional*      | This is the exchange on which the verified order should preferably be placed.                                                               | string                                      |         |
| **Body**   | **body**   *required*          | Place order parameters                                                                                                                      | [CreateOrderResource](#createorderresource) |         |

### Responses

| HTTP Code | Description                                                                                                                                              | Schema                                |
| --------- | -------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------- |
| **200**   | JSON data with the order information is returned, indicating if the order is properly constructed (examine the isSuccessful parameter in the JSON file). | [VerifyOrderModel](#verifyordermodel) |
| **401**   | The access level of the provided authorization token is not sufficient to perform this operation.                                                        | No Content                            |
| **403**   | The provided Et-App-Key is incorrect.                                                                                                                    | No Content                            |
| **422**   | A validation error occurred while processing the request.                                                                                                | No Content                            |
| **500**   | Internal server error                                                                                                                                    | No Content                            |

### Consumes

* `application/json`
* `text/json`

### Produces

* `application/json`
* `text/json`