Order Entry — Cancel Stop Order

# Python (websocket-client)
import json, websocket

API_KEY = "YOUR_API_KEY"

def send(ws, obj): ws.send(json.dumps(obj))

def on_open(ws):
    # Authenticate
    # https://docs.qfex.com/websocket/channels/trade/authenticate#how-it-works
    send(ws, {"type": "auth", "params": { "hmac": { "public_key": "qfex_pub_xxxxx", "nonce": "c0ffee...", "unix_ts": 1760545414, "signature": "5f2e..." }}})
    # Cancel stop order
    send(ws, {
        "type": "cancel_stop_order",
        "params": {
            "stop_order_id": "510333ac-3f7b-4d88-934a-4396d48824cc"
        }
    })

ws = websocket.WebSocketApp(
    "wss://trade.qfex.com?api_key=YOUR_API_KEY",
    on_open=on_open,
    on_message=lambda _, m: print("Message:", m)
)
ws.run_forever()

// Node.js (ws)
import WebSocket from "ws";
const ws = new WebSocket("wss://trade.qfex.com?api_key=YOUR_API_KEY");
const API_KEY = "YOUR_API_KEY";

ws.on("open", () => {
  // Authenticate
  ws.send(JSON.stringify({ type: "auth", params: { api_key: API_KEY } }));
  // Cancel stop order
  ws.send(
    JSON.stringify({
      type: "cancel_stop_order",
      params: {
        stop_order_id: "510333ac-3f7b-4d88-934a-4396d48824cc",
      },
    })
  );
});

ws.on("message", (msg) => console.log("Message:", msg.toString()));

// Go (gorilla/websocket)
package main

import (
	"log"
	"github.com/gorilla/websocket"
)

func mustWriteJSON(c *websocket.Conn, v any) {
	if err := c.WriteJSON(v); err != nil { log.Fatal("write:", err) }
}

func main() {
	c, _, err := websocket.DefaultDialer.Dial("wss://trade.qfex.com?api_key=YOUR_API_KEY", nil)
	if err != nil { log.Fatal("dial:", err) }
	defer c.Close()

	// Authenticate
	mustWriteJSON(c, map[string]any{
		"type": "auth",
		"params": map[string]any{"hmac": map[string]any{"public_key": "qfex_pub_xxxxx", "nonce": "c0ffee...", "unix_ts": 1760545414, "signature": "5f2e..."}}
	})

	// Cancel stop order
	mustWriteJSON(c, map[string]any{
		"type": "cancel_stop_order",
		"params": map[string]any{
			"stop_order_id": "510333ac-3f7b-4d88-934a-4396d48824cc",
		},
	})
}

// Java (OkHttp WebSocket)
import java.util.concurrent.TimeUnit;
import okhttp3.*;

public class CancelStopOrderWs {
  public static void main(String[] args) {
    OkHttpClient client = new OkHttpClient.Builder()
        .pingInterval(20, TimeUnit.SECONDS).build();

    Request req = new Request.Builder()
        .url("wss://trade.qfex.com?api_key=YOUR_API_KEY").build();

    WebSocketListener li = new WebSocketListener() {
      @Override public void onOpen(WebSocket ws, Response r) {
        // Authenticate
        ws.send("{\"type\": \"auth\", \"params\": { \"hmac\": { \"public_key\": \"qfex_pub_xxxxx\", \"nonce\": \"c0ffee...\..\", \"unix_ts\": 1760545414, \"signature\": \"5f2e...\" }}}");

        // Cancel stop order
        ws.send("{\"type\":\"cancel_stop_order\",\"params\":{\"stop_order_id\":\"510333ac-3f7b-4d88-934a-4396d48824cc\"}}");
      }
      @Override public void onMessage(WebSocket ws, String text) {
        System.out.println(text);
      }
    };

    client.newWebSocket(req, li);
    try { Thread.sleep(Long.MAX_VALUE); } catch (InterruptedException ignored) {}
  }
}