tika
4df8d53b1a
Full-stack trading bot with: - FastAPI backend with ICT strategy (Order Block + Liquidity Sweep detection) - Backtester engine with rolling window, spread simulation, and performance metrics - Hybrid market data service (yfinance + TwelveData with rate limiting + SQLite cache) - Simulated exchange for paper trading - React/TypeScript frontend with TradingView lightweight-charts v5 - Live dashboard with candlestick chart, OHLC legend, trade markers - Backtest page with configurable parameters, equity curve, and trade table - WebSocket support for real-time updates - Bot runner with asyncio loop for automated trading Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
58 lines
1.6 KiB
Python
58 lines
1.6 KiB
Python
"""
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WebSocket endpoint pour le streaming de données live.
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Broadcast les événements du bot (ticks, nouveaux trades, etc.)
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vers tous les clients connectés.
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"""
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import asyncio
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import json
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import logging
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from typing import Set
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from fastapi import WebSocket, WebSocketDisconnect
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logger = logging.getLogger(__name__)
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class ConnectionManager:
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def __init__(self) -> None:
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self._active: Set[WebSocket] = set()
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async def connect(self, ws: WebSocket) -> None:
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await ws.accept()
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self._active.add(ws)
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logger.info("WS client connecté — %d total", len(self._active))
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def disconnect(self, ws: WebSocket) -> None:
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self._active.discard(ws)
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logger.info("WS client déconnecté — %d restants", len(self._active))
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async def broadcast(self, data: dict) -> None:
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if not self._active:
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return
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message = json.dumps(data, default=str)
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dead: Set[WebSocket] = set()
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for ws in list(self._active):
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try:
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await ws.send_text(message)
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except Exception:
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dead.add(ws)
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for ws in dead:
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self.disconnect(ws)
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manager = ConnectionManager()
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async def websocket_endpoint(ws: WebSocket) -> None:
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await manager.connect(ws)
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try:
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while True:
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# Garder la connexion ouverte, le client peut envoyer des pings
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data = await ws.receive_text()
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if data == "ping":
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await ws.send_text(json.dumps({"type": "pong"}))
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except WebSocketDisconnect:
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manager.disconnect(ws)
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