main_window.py

from howtrader.event import EventEngine, Event
from howtrader.trader.event import EVENT_TV_SIGNAL
from howtrader.trader.engine import MainEngine
from howtrader.trader.ui import MainWindow, create_qapp
from howtrader.trader.setting import SETTINGS
from howtrader.gateway.binance import BinanceUsdtGateway, BinanceSpotGateway, BinanceInverseGateway

from howtrader.app.cta_strategy import CtaStrategyApp
# from howtrader.app.data_manager import DataManagerApp
# from howtrader.app.data_recorder import DataRecorderApp
# from howtrader.app.algo_trading import AlgoTradingApp
# from howtrader.app.risk_manager import RiskManagerApp
# from howtrader.app.spread_trading import SpreadTradingApp
from howtrader.app.tradingview import TradingViewApp
from threading import Thread
import json
from flask import Flask, request

# create global event_engine
event_engine: EventEngine = EventEngine()
passphrase = SETTINGS.get("passphrase", "")
port = SETTINGS.get("port", 9999)

app = Flask(__name__)


@app.route('/', methods=['GET'])
def welcome():
    return "Hi, this is tv server!"


@app.route('/webhook', methods=['POST'])
def webhook():
    try:
        data = json.loads(request.data)
        if data.get('passphrase', None) != passphrase:
            return {"status": "failure", "msg": "passphrase is incorrect"}
        del data['passphrase']  # del it for safety.
        event: Event = Event(type=EVENT_TV_SIGNAL, data=data)
        event_engine.put(event)
        return {"status": "success", "msg": ""}
    except Exception as error:
        return {"status": "error", "msg": str(error)}


def start_tv_server():
    app.run(host="127.0.0.1", port=port)


def main():
    """"""
    qapp = create_qapp()
    main_engine = MainEngine(event_engine)

    main_engine.add_gateway(BinanceSpotGateway)
    main_engine.add_gateway(BinanceUsdtGateway)
    main_engine.add_gateway(BinanceInverseGateway)
    main_engine.add_app(CtaStrategyApp)
    main_engine.add_app(TradingViewApp)

    # if you don't use
    # main_engine.add_app(DataManagerApp)
    # main_engine.add_app(AlgoTradingApp)
    # main_engine.add_app(DataRecorderApp)
    # main_engine.add_app(RiskManagerApp)
    # main_engine.add_app(SpreadTradingApp)

    main_window = MainWindow(main_engine, event_engine)
    main_window.showMaximized()

    t1 = Thread(target=start_tv_server)
    t1.daemon = True
    t1.start()

    qapp.exec()


if __name__ == "__main__":

    main()