POST Enable Strategy

Resume a previously-disabled strategy

POST /v1/api/accounts/{account}/strategies/{strategyId}/enable

Resumes a NinjaScript strategy that was paused via DisableStrategy. NT8 routes OnBarUpdate calls back to the strategy and processing continues from the current bar.

Idempotent: enabling an already-enabled strategy is a no-op that returns wasEnabled=true and success=true. Strategies in a terminal state cannot be re-enabled — use DeployStrategy or Account.AddStrategy to instantiate a fresh copy.

Available in CrossTrade Add-On v1.13.0+.

As of add-on v1.13.6, enable is post-verified against NT8 state: for a strategy still attached to the account (or chart), success: true is returned only after NT8 confirms it (verified: true), otherwise success: false with error: "enable_unconfirmed". Because NT8 removes account-hosted strategies from the account when they are disabled, re-enabling one by its original id recreates it from the saved deployment: the response carries recreated: true, a new strategyId, and original_strategy_id. As a safety guard the recreate is refused with error: "not_resumable_position_open" when the account holds an open position on the strategy's instrument (recreating flat would desync the position) — flatten first, or use StartStrategy deliberately. If no saved deployment exists for the id (for example a strategy attached manually in NT8, not deployed through CrossTrade), enable returns strategy_not_found with guidance to use StartStrategy. Chart-attached strategies resume in place via the enable flag.

Headers

Name	Value
Content-Type	application/json
Authorization	Bearer <token>

Path Parameters

Name	Type	Required	Description
account	string	Required	Name of the NT8 account that owns the strategy.
strategyId	string	Required	ID of the strategy as returned by ListStrategies or ListAllStrategies.

Code Examples

Python

import requests

token = 'my-secret-token'

url = "https://dev.crosstrade.io/v1/api/accounts/Sim101/strategies/370780512/enable"
headers = {
    "Authorization": f"Bearer {token}",
    "Content-Type": "application/json"
}

try:
    response = requests.post(url, headers=headers, json={})
    print(f"Response Code: {response.status_code}, Response Text: {response.text}")
except Exception as e:
    print(f"An error occurred: {e}")

JavaScript

const token = 'my-secret-token';

const url = "https://dev.crosstrade.io/v1/api/accounts/Sim101/strategies/370780512/enable";

fetch(url, {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${token}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({})
})
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

cURL

TOKEN="my-secret-token"

curl -X POST "https://dev.crosstrade.io/v1/api/accounts/Sim101/strategies/370780512/enable" \
  -H "Authorization: Bearer $TOKEN" \
  -H "Content-Type: application/json" \
  -d '{}'

---

Response

200

{
  "strategyId": "370780640",
  "original_strategy_id": "370780512",
  "account": "Sim101",
  "hostMode": "account",
  "engine": "recreate_from_deployment",
  "recreated": true,
  "deploymentId": "dep_9b3e4cbfac82",
  "state": "Realtime",
  "verified": true,
  "success": true
}

404

{
  "success": false,
  "error": "strategy_not_found",
  "detail": "No strategy with id '370780512' on account 'Sim101'. Use ListStrategies or ListAllStrategies to discover valid ids."
}

409

{
  "success": false,
  "error": "strategy_terminated",
  "detail": "Strategy id '370780512' is in a terminal state and cannot be toggled. Use DeployStrategy or Account.AddStrategy to start a new instance."
}

WebSocket API

This request can also be made over the WebSocket API. The account and strategyId path parameters are passed inside args.

{
  "action": "rpc",
  "id": "my-request-id",
  "api": "EnableStrategy",
  "args": {
    "account": "Sim101",
    "strategyId": "370780512"
  }
}