# TradeLocker API DELETE /trade/orders/{orderId}

Independent and unofficial. Not affiliated with or endorsed by any broker or platform named here. Educational only: nothing here is advice, and nothing here recommends a broker or a trade.

This is the markdown version of https://openbrokerapi.com/platforms/tradelocker/endpoints/delete-order, written from the same records as that page.

Risk warning: CFDs and spread bets are complex instruments and come with a high risk of losing money rapidly due to leverage. You can lose money on these products, and each provider publishes its own loss figure under FCA rules. You should consider whether you understand how they work and whether you can afford to take the high risk of losing your money. Automated and API trading can amplify losses through bugs, connectivity failures and runaway orders.

Cancel one pending order. It works only before the order has been executed.

- Request: `DELETE /trade/orders/{orderId}`
- Group: Trading
- Status: verified. Source: [public-api.tradelocker.com](https://public-api.tradelocker.com/reference/cancelorder), checked 2026-10-12.
- Official reference: https://public-api.tradelocker.com/reference/cancelorder

Note: Read on 12 Oct 2026 on TradeLocker's own reference page for this call, in the Markdown version the documentation site serves at the same address with .md on the end. That page carries the call's OpenAPI definition, headed Trading API version 2.11.0: the method, path, parameters and required marks here are that definition's. The reference names the optional header developer-api-key, while TradeLocker's getting started page calls the Developer Program key tl-developer-api-key and says it unlocks less restrictive rate limits. This record keeps the name on the reference page. Documented success statuses are 200, with a status s of ok, and 204. No mock reply is recorded.

## Parameters

- `orderId` (in path, type integer, required): The identifier of the order, as returned when it was placed.
- `accNum` (in header, type integer, required): The account number that selects which of the login's accounts the call acts on. It is the accNum from GET /auth/jwt/all-accounts, not the accountId.

### Authentication headers

- `Authorization` (type string, required): Send Bearer followed by the accessToken from POST /auth/jwt/token. The reference marks the call as secured by a bearer JWT. Placeholder only: never paste a real token into this site.
- `developer-api-key` (type string, optional): A key issued through the TradeLocker Developer Program. Optional.

## Request

Written from the method, path and parameters recorded on this page, against the demo host. Not executed against a live or demo account. Credentials are read from environment variables on your own machine and are never entered on this site. The request builder at https://openbrokerapi.com/tools/request-builder writes these same snippets, from the same record.

### Python

```python
# Set TRADELOCKER_ACCESS_TOKEN, TRADELOCKER_ACC_NUM as environment variables first. Never paste real values into code.
# TRADELOCKER_ACCESS_TOKEN holds the Authorization header that POST /auth/jwt/token returns.
# Replace each {placeholder}, "..." and 0 with a real value before running.
# Optional and not shown: headers developer-api-key.
import os
import requests

BASE_URL = "https://demo.tradelocker.com/backend-api"  # the demo host
headers = {
    "Authorization": "Bearer " + os.environ["TRADELOCKER_ACCESS_TOKEN"],
    "accNum": os.environ["TRADELOCKER_ACC_NUM"],
}
resp = requests.delete(BASE_URL + "/trade/orders/{orderId}", headers=headers, timeout=10)
resp.raise_for_status()
print(resp.json())
```

### JavaScript

```javascript
// Set TRADELOCKER_ACCESS_TOKEN, TRADELOCKER_ACC_NUM as environment variables first. Never paste real values into code.
// TRADELOCKER_ACCESS_TOKEN holds the Authorization header that POST /auth/jwt/token returns.
// Replace each {placeholder}, "..." and 0 with a real value before running.
// Optional and not shown: headers developer-api-key.
// Run as a module, for example a .mjs file, on a Node version that has fetch built in.
const BASE_URL = "https://demo.tradelocker.com/backend-api"; // the demo host
const res = await fetch(BASE_URL + "/trade/orders/{orderId}", {
  method: "DELETE",
  headers: {
    "Authorization": "Bearer " + process.env.TRADELOCKER_ACCESS_TOKEN,
    "accNum": process.env.TRADELOCKER_ACC_NUM,
  },
});
if (!res.ok) throw new Error(`HTTP ${res.status}`);
console.log(await res.json());
```

### curl

```bash
# Set TRADELOCKER_ACCESS_TOKEN, TRADELOCKER_ACC_NUM as environment variables first. Never paste real values into code.
# TRADELOCKER_ACCESS_TOKEN holds the Authorization header that POST /auth/jwt/token returns.
# Replace each {placeholder}, "..." and 0 with a real value before running.
# Optional and not shown: headers developer-api-key.
curl -X DELETE "https://demo.tradelocker.com/backend-api/trade/orders/{orderId}" \
  -H "Authorization: Bearer $TRADELOCKER_ACCESS_TOKEN" \
  -H "accNum: $TRADELOCKER_ACC_NUM"
```

## Response

No mock response is recorded for this endpoint. That is a statement about this record, not about what the API returns: read the shape of the reply in the [official reference](https://public-api.tradelocker.com/reference/cancelorder).

## More on the TradeLocker API

- [All TradeLocker API endpoints](https://openbrokerapi.com/platforms/tradelocker/endpoints): 23 documented, grouped by what they do.
- [All TradeLocker API error codes](https://openbrokerapi.com/errors/tradelocker)
- [TradeLocker API page](https://openbrokerapi.com/platforms/tradelocker): The full record: access, authentication, limits and the source for each.
- [TradeLocker API as an OpenAPI file](https://openbrokerapi.com/specs/tradelocker.json): Generated from these endpoint records. Independent and unofficial.

## Licence and how to cite

The records behind this page are all rights reserved. This file is the page itself, at its own address, in another format. It is not part of the CC BY 4.0 downloads listed at https://openbrokerapi.com/data. Quote from it with a link to the page.

Cite as: TradeLocker API DELETE /trade/orders/{orderId}. Broker API Hub, https://openbrokerapi.com/platforms/tradelocker/endpoints/delete-order, newest check 2026-10-12.

Where you rely on a single figure, cite the source and the checked date printed beside it as well. Where this page and a broker's own documentation differ, the documentation wins.