Send orders from whatever you already run

Not a way to send orders at all, which is exactly why it is first. Link the account your strategy trades and the record stops being what you posted and starts being what your broker did: the trades are read straight from the account, so there is nothing to send, nothing to keep running, and nothing you could get wrong.

The record does not have to start on the day you signed up. Give the date the strategy began trading, up to three years back, and the account’s filled orders from that day are read from the broker and sealed in, each carrying the time it executed, the time it was sealed and the broker’s own order id, all inside the hash. Milestones, returns and drawdown count from the first of those fills. It only works into an empty record: once a strategy has posted its own orders, the chain stays in the order it was written.

Every route below produces claims until you do this, and a strategy whose record is only claims cannot charge for subscriptions. Use one of them if your broker is not on the supported list, or to start building a record before you link an account.

Connect a brokerage →

One call per trade, with the strategy’s key in a header. This is the only route that can send a header, which is why it is the one to use when you have the choice. Send it when the trade happens: there are no limit or stop orders, and the price is the market’s when it arrives.

curl -X POST https://truefills.com/api/v1/strategies/YOUR-SLUG/orders \
    -H "Authorization: Bearer YOUR_KEY" \
    -H "Content-Type: application/json" \
    -d '{"action":"buy","symbol":"AAPL","qty":10}'

TradingView cannot send an Authorization header, so the credential lives in the URL. Create a signal URL on your account page, paste it into the alert’s Webhook URL box, and put the order in the alert message.

BUY {{ticker}} 10

JSON works too, if you prefer to be explicit:

{"action":"buy","symbol":"{{ticker}}","qty":10}

WebRequest() is disabled by default and refuses any address you have not allowed. In the terminal: Tools → Options → Expert Advisors → allow WebRequest, and add https://truefills.com to the list. Without that step the call returns -1 and nothing is sent.

// Call after your EA decides to trade.
  void SendSignal(string action, string symbolName, double qty)
  {
     string url  = "https://truefills.com/api/v1/signals/YOUR_SIGNAL_TOKEN";
     string body = action + " " + symbolName + " " + DoubleToString(qty, 0);
     char   post[], result[];
     string headers = "Content-Type: text/plain\r\n";
     string resultHeaders;

     StringToCharArray(body, post, 0, StringLen(body));
     int status = WebRequest("POST", url, headers, 5000, post, result, resultHeaders);

     if(status == -1)
        Print("WebRequest blocked. Allow https://truefills.com in Tools > Options > Expert Advisors.");
     else if(status != 201)
        Print("Signal refused (", status, "): ", CharArrayToString(result));
  }

NinjaScript is C#, so the whole thing is one HttpClient call. Put this in your strategy and call it wherever you submit an order.

private static readonly System.Net.Http.HttpClient Http = new System.Net.Http.HttpClient();

  private async void SendSignal(string action, string ticker, int qty)
  {
      var url  = "https://truefills.com/api/v1/signals/YOUR_SIGNAL_TOKEN";
      var body = new System.Net.Http.StringContent(
          $"{action} {ticker} {qty}", System.Text.Encoding.UTF8, "text/plain");
      try
      {
          var res = await Http.PostAsync(url, body);
          if (!res.IsSuccessStatusCode)
              Print("Signal refused: " + await res.Content.ReadAsStringAsync());
      }
      catch (Exception e) { Print("Signal failed: " + e.Message); }
  }

If you already have a funded TradeStation account, their WebAPI is a normal REST API and you can post orders here from EasyLanguage. If you do not, the signal URL below reaches us from anything that can make an HTTP request, which includes most of what people bolt onto TradeStation anyway.

POST https://truefills.com/api/v1/signals/YOUR_SIGNAL_TOKEN
  Content-Type: text/plain

  BUY AAPL 10

signal+YOUR_SIGNAL_TOKEN@signals.truefills.com

The weakest route here, and worth saying so. Email can run minutes late, and a trade is priced when its email lands, not when you sent it. Use it when nothing better is available.