DXtrade API PUT /accounts/{accountCode}/orders
Change an order that is not yet final by sending the whole order request again with the changed fields.
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.
Read on 12 Oct 2026 in the DXtrade REST API specification on DXtrade's developer portal. The portal draws its pages in the browser from Markdown files it also serves directly, and the Markdown file of this page (DXtrade-REST-API.md) is what was read, with the model files it includes. The portal writes each address after a base address it fills in from its own settings, which on this portal is https://demo.dx.trade/dxsca-web. A broker or firm that offers DXtrade hosts its own, so the path here is what follows that base. The page writes the placeholder in the address as {account code} and names the parameter accountCode or account code. This record uses accountCode. The specification says every request needs authentication unless it says otherwise, and this section says the Authorization header should be included, which is why it is recorded as required. The body fields are those of the Single Order Request model, with the model's own required and optional marks. The page also accepts an Order Group Request, which is not recorded here. The page says the whole order request must be sent, that some fields cannot change after issue (409), and that an order already in a final status is refused with 409 and error code 1005. The model says the order type is left out of a request that replaces a single order. Here orderCode may be the client's code or the platform's own. The reply is the updated Order Response with an ETag header.
Parameters
| Name | In | Type | Description |
|---|---|---|---|
| accountCoderequired | path | string | The account code, two strings joined by a colon in the form clearing:account, assigned by the platform. URL-encode it. |
| If-Matchrequired | header | string | The ETag last received for the resource. The specification says every PUT and DELETE must carry it: without it the reply is 403, and with a stale value it is 412. |
| orderCoderequired | body | string | An identifier for the order, unique among the orders on the account. For a new order the client assigns it. |
| typerequired | body | string | One of: MARKET, LIMIT, STOP. It cannot be changed once the order is issued. |
| instrumentrequired | body | string | The symbol of the instrument. It cannot be changed once the order is issued. |
| siderequired | body | string | One of: BUY, SELL. |
| quantity | body | number | Marked optional. The size in units, not lots. Left out or zero for a closing order tied to a position, which takes the position's size. |
| positionEffect | body | string | Marked optional. One of: OPEN, CLOSE. The model says it is required for position based trading. |
| positionCode | body | string | Marked optional. The position the order changes. Present when positionEffect is CLOSE and left out otherwise. |
| limitPrice | body | number | Marked optional. The price of a limit order. Absent for market and stop orders. |
| stopPrice | body | number | Marked optional. The price of a stop order. Absent for market and limit orders. |
| priceOffset | body | number | Marked optional. A price offset for a protection order, taken from the fill price of the order that triggers it. Needs priceLink. |
| priceLink | body | string | Marked optional. One of: TRIGGERED_STOP, TRIGGERED_LIMIT. |
| tif | body | string | Marked optional. Time in force. One of: GTC, DAY, GTD. The default depends on how the platform is set up. |
| expireDate | body | string | Marked optional. Expiry in UTC. Present when tif is GTD and left out otherwise. |
| metadata | body | object | Marked optional. Up to 32 key and value pairs of the client's own, stored and returned with the order. |
Authentication headers
| Name | Type | Description |
|---|---|---|
| Authorizationrequired | string | With token authentication, send DXAPI followed by the sessionToken from POST /login. With HMAC authentication the same header carries DXAPI with a principal, a timestamp and a hash, signed for each request as the specification describes. Placeholder only: never paste a real token into this site. |
Request
Written from the method, path and parameters recorded on this page. No demo host is recorded as a plain address for this API, so the samples read the base address from an environment variable. 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 samples send it as JSON with a Content-Type of application/json (in Python, passing json= sets that header) and a placeholder for each of the 4 body fields the record marks as required. Each placeholder has to be replaced with a real value before the request can succeed.
Python
# Set DXTRADE_BASE_URL, DXTRADE_SESSION_TOKEN as environment variables first. Never paste real values into code.
# DXTRADE_SESSION_TOKEN holds the Authorization header that POST /login returns.
# No demo host is recorded as a plain address for this API, so the base address is read from DXTRADE_BASE_URL.
# Replace each {placeholder}, "..." and 0 with a real value before running.
# Optional and not shown: body fields quantity, positionEffect, positionCode, limitPrice, stopPrice, priceOffset, priceLink, tif, expireDate, metadata.
import os
import requests
BASE_URL = os.environ["DXTRADE_BASE_URL"]
headers = {
"Authorization": "DXAPI " + os.environ["DXTRADE_SESSION_TOKEN"],
"If-Match": "...",
}
body = {"orderCode": "...", "type": "...", "instrument": "...", "side": "..."}
resp = requests.put(BASE_URL + "/accounts/{accountCode}/orders", headers=headers, json=body, timeout=10)
resp.raise_for_status()
print(resp.json())JavaScript
// Set DXTRADE_BASE_URL, DXTRADE_SESSION_TOKEN as environment variables first. Never paste real values into code.
// DXTRADE_SESSION_TOKEN holds the Authorization header that POST /login returns.
// No demo host is recorded as a plain address for this API, so the base address is read from DXTRADE_BASE_URL.
// Replace each {placeholder}, "..." and 0 with a real value before running.
// Optional and not shown: body fields quantity, positionEffect, positionCode, limitPrice, stopPrice, priceOffset, priceLink, tif, expireDate, metadata.
// Run as a module, for example a .mjs file, on a Node version that has fetch built in.
const BASE_URL = process.env.DXTRADE_BASE_URL;
const res = await fetch(BASE_URL + "/accounts/{accountCode}/orders", {
method: "PUT",
headers: {
"Authorization": "DXAPI " + process.env.DXTRADE_SESSION_TOKEN,
"If-Match": "...",
"Content-Type": "application/json",
},
body: JSON.stringify({"orderCode": "...", "type": "...", "instrument": "...", "side": "..."}),
});
if (!res.ok) throw new Error(`HTTP ${res.status}`);
console.log(await res.json());curl
# Set DXTRADE_BASE_URL, DXTRADE_SESSION_TOKEN as environment variables first. Never paste real values into code.
# DXTRADE_SESSION_TOKEN holds the Authorization header that POST /login returns.
# No demo host is recorded as a plain address for this API, so the base address is read from DXTRADE_BASE_URL.
# Replace each {placeholder}, "..." and 0 with a real value before running.
# Optional and not shown: body fields quantity, positionEffect, positionCode, limitPrice, stopPrice, priceOffset, priceLink, tif, expireDate, metadata.
curl -X PUT "$DXTRADE_BASE_URL/accounts/{accountCode}/orders" \
-H "Authorization: DXAPI $DXTRADE_SESSION_TOKEN" \
-H "If-Match: ..." \
-H "Content-Type: application/json" \
-d '{"orderCode": "...", "type": "...", "instrument": "...", "side": "..."}'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.
DXtrade API errors you may meet
- 1 Authorization requiredHTTP 401. DXtrade errorCode 1, description "Authorization required" (the vendor's wording).
- 100 Order with this id already existsHTTP 409. DXtrade errorCode 100, description "Order with this id already exists" (the vendor's wording).
- 1005 Reference order is closedHTTP 409. DXtrade errorCode 1005, description "Reference order is closed" (the vendor's wording).
- 101 Client-originated identifier is not validHTTP 400. DXtrade errorCode 101, description "Client-originated identifier is not valid" (the vendor's wording).
- 11 Malformed HMAC signatureHTTP 400. DXtrade errorCode 11, description "Malformed HMAC signature" (the vendor's wording).
- 110 A system error has occurredHTTP 500. DXtrade errorCode 110, description "A system error has occurred" (the vendor's wording).
All DXtrade API error codes, including 73 more not listed here.