TradeLocker API PATCH /trade/orders/{orderId}

PATCH/trade/orders/{orderId}Trading

Change a pending order: its price, size, validity, stop loss or take profit.

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Independent and unofficialpublic-api.tradelocker.comchecked 12 Oct 2026

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. The definition requires a request body and marks none of its fields as required. The page refers to the order placing call for what each field means, and the descriptions here follow that call. No mock reply is recorded.

Parameters

Name	In	Type	Description
orderIdrequired	path	integer	The identifier of the order to change.
accNumrequired	header	integer	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.
price	body	number	New limit price.
qty	body	number	New order size.
stopPrice	body	number	New stop price.
validity	body	string	One of: GTC, IOC.
stopLoss	body	number	New stop loss, read according to stopLossType.
stopLossType	body	string	One of: absolute, offset, trailingOffset.
takeProfit	body	number	New take profit, read according to takeProfitType.
takeProfitType	body	string	One of: absolute, offset.
trStopOffset	body	number	New trailing offset.

Authentication headers

Name	Type	Description
Authorizationrequired	string	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	string	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 writes these same snippets, from the same record.

This call takes a request body. The record marks no body field as required, so the samples send an empty JSON object with a Content-Type of application/json (in Python, passing json= sets that header). Add the fields the call needs from the parameters above before the request can succeed.

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; body fields price, qty, stopPrice, validity, stopLoss, stopLossType, takeProfit, takeProfitType, trStopOffset.
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"],
}
body = {}
resp = requests.patch(BASE_URL + "/trade/orders/{orderId}", headers=headers, json=body, timeout=10)
resp.raise_for_status()
print(resp.json())

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; body fields price, qty, stopPrice, validity, stopLoss, stopLossType, takeProfit, takeProfitType, trStopOffset.
// 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: "PATCH",
  headers: {
    "Authorization": "Bearer " + process.env.TRADELOCKER_ACCESS_TOKEN,
    "accNum": process.env.TRADELOCKER_ACC_NUM,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({}),
});
if (!res.ok) throw new Error(`HTTP ${res.status}`);
console.log(await res.json());

curl

# 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; body fields price, qty, stopPrice, validity, stopLoss, stopLossType, takeProfit, takeProfitType, trStopOffset.
curl -X PATCH "https://demo.tradelocker.com/backend-api/trade/orders/{orderId}" \
  -H "Authorization: Bearer $TRADELOCKER_ACCESS_TOKEN" \
  -H "accNum: $TRADELOCKER_ACC_NUM" \
  -H "Content-Type: application/json" \
  -d '{}'

Response

No mock response is recorded for this endpoint. Where the record says why, or names the fields of the reply, it does so in the note at the top of this page. That is a statement about this record, not about what the API returns: read the shape of the reply in the official reference.

TradeLocker API errors you may meet

All TradeLocker API error codes.