Supports Interactive Brokers, US and Hong Kong stocks.

Signed-off-by: TIANHE <TIANHE@GMAIL.COM>

backend_api_python/app/routes/__init__.py

@@ -19,6 +19,7 @@ def register_routes(app: Flask):
     from app.routes.dashboard import dashboard_bp
     from app.routes.settings import settings_bp
     from app.routes.portfolio import portfolio_bp
+    from app.routes.ibkr import ibkr_bp
     
     app.register_blueprint(health_bp)
     app.register_blueprint(auth_bp, url_prefix='/api/user')  # 兼容前端 /api/user/login
@@ -33,4 +34,5 @@ def register_routes(app: Flask):
     app.register_blueprint(dashboard_bp, url_prefix='/api/dashboard')
     app.register_blueprint(settings_bp, url_prefix='/api/settings')
     app.register_blueprint(portfolio_bp, url_prefix='/api/portfolio')
+    app.register_blueprint(ibkr_bp, url_prefix='/api/ibkr')
 

backend_api_python/app/routes/ibkr.py

@@ -0,0 +1,382 @@
+"""
+Interactive Brokers API Routes
+
+Standalone API endpoints for US and Hong Kong stock trading.
+"""
+
+from flask import Blueprint, request, jsonify
+
+from app.utils.logger import get_logger
+from app.services.ibkr_trading import IBKRClient, IBKRConfig
+from app.services.ibkr_trading.client import get_ibkr_client, reset_ibkr_client
+
+logger = get_logger(__name__)
+
+ibkr_bp = Blueprint('ibkr', __name__)
+
+# Global client instance
+_client: IBKRClient = None
+
+
+def _get_client() -> IBKRClient:
+    """Get current client instance."""
+    global _client
+    if _client is None:
+        _client = get_ibkr_client()
+    return _client
+
+
+# ==================== Connection Management ====================
+
+@ibkr_bp.route('/status', methods=['GET'])
+def get_status():
+    """
+    Get connection status.
+    
+    GET /api/ibkr/status
+    """
+    try:
+        client = _get_client()
+        return jsonify({
+            "success": True,
+            "data": client.get_connection_status()
+        })
+    except Exception as e:
+        logger.error(f"Get status failed: {e}")
+        return jsonify({
+            "success": False,
+            "error": str(e)
+        }), 500
+
+
+@ibkr_bp.route('/connect', methods=['POST'])
+def connect():
+    """
+    Connect to TWS / IB Gateway.
+    
+    POST /api/ibkr/connect
+    Body: {
+        "host": "127.0.0.1",      // Optional, default 127.0.0.1
+        "port": 7497,             // Optional, TWS Live:7497, TWS Paper:7496, Gateway Live:4001, Gateway Paper:4002
+        "clientId": 1,            // Optional, default 1
+        "account": "",            // Optional, specify for multi-account
+        "readonly": false         // Optional, readonly mode
+    }
+    """
+    global _client
+    
+    try:
+        data = request.get_json() or {}
+        
+        # Build config
+        config = IBKRConfig(
+            host=data.get('host', '127.0.0.1'),
+            port=int(data.get('port', 7497)),
+            client_id=int(data.get('clientId', 1)),
+            account=data.get('account', ''),
+            readonly=data.get('readonly', False),
+        )
+        
+        # Disconnect existing connection
+        if _client is not None and _client.connected:
+            _client.disconnect()
+        
+        # Create new client and connect
+        _client = IBKRClient(config)
+        success = _client.connect()
+        
+        if success:
+            return jsonify({
+                "success": True,
+                "message": "Connected successfully",
+                "data": _client.get_connection_status()
+            })
+        else:
+            return jsonify({
+                "success": False,
+                "error": "Connection failed. Please check if TWS/Gateway is running."
+            }), 400
+            
+    except ImportError as e:
+        return jsonify({
+            "success": False,
+            "error": "ib_insync not installed. Run: pip install ib_insync"
+        }), 500
+    except Exception as e:
+        logger.error(f"Connection failed: {e}")
+        return jsonify({
+            "success": False,
+            "error": str(e)
+        }), 500
+
+
+@ibkr_bp.route('/disconnect', methods=['POST'])
+def disconnect():
+    """
+    Disconnect from IBKR.
+    
+    POST /api/ibkr/disconnect
+    """
+    global _client
+    
+    try:
+        if _client is not None:
+            _client.disconnect()
+            _client = None
+        
+        reset_ibkr_client()
+        
+        return jsonify({
+            "success": True,
+            "message": "Disconnected"
+        })
+    except Exception as e:
+        logger.error(f"Disconnect failed: {e}")
+        return jsonify({
+            "success": False,
+            "error": str(e)
+        }), 500
+
+
+# ==================== Account Queries ====================
+
+@ibkr_bp.route('/account', methods=['GET'])
+def get_account():
+    """
+    Get account information.
+    
+    GET /api/ibkr/account
+    """
+    try:
+        client = _get_client()
+        if not client.connected:
+            return jsonify({
+                "success": False,
+                "error": "Not connected to IBKR"
+            }), 400
+        
+        return jsonify({
+            "success": True,
+            "data": client.get_account_summary()
+        })
+    except Exception as e:
+        logger.error(f"Get account info failed: {e}")
+        return jsonify({
+            "success": False,
+            "error": str(e)
+        }), 500
+
+
+@ibkr_bp.route('/positions', methods=['GET'])
+def get_positions():
+    """
+    Get positions.
+    
+    GET /api/ibkr/positions
+    """
+    try:
+        client = _get_client()
+        if not client.connected:
+            return jsonify({
+                "success": False,
+                "error": "Not connected to IBKR"
+            }), 400
+        
+        positions = client.get_positions()
+        return jsonify({
+            "success": True,
+            "data": positions
+        })
+    except Exception as e:
+        logger.error(f"Get positions failed: {e}")
+        return jsonify({
+            "success": False,
+            "error": str(e)
+        }), 500
+
+
+@ibkr_bp.route('/orders', methods=['GET'])
+def get_orders():
+    """
+    Get open orders.
+    
+    GET /api/ibkr/orders
+    """
+    try:
+        client = _get_client()
+        if not client.connected:
+            return jsonify({
+                "success": False,
+                "error": "Not connected to IBKR"
+            }), 400
+        
+        orders = client.get_open_orders()
+        return jsonify({
+            "success": True,
+            "data": orders
+        })
+    except Exception as e:
+        logger.error(f"Get orders failed: {e}")
+        return jsonify({
+            "success": False,
+            "error": str(e)
+        }), 500
+
+
+# ==================== Trading ====================
+
+@ibkr_bp.route('/order', methods=['POST'])
+def place_order():
+    """
+    Place an order.
+    
+    POST /api/ibkr/order
+    Body: {
+        "symbol": "AAPL",         // Required, symbol code
+        "side": "buy",            // Required, buy or sell
+        "quantity": 10,           // Required, number of shares
+        "marketType": "USStock",  // Optional, USStock or HShare, default USStock
+        "orderType": "market",    // Optional, market or limit, default market
+        "price": 150.00           // Required for limit orders
+    }
+    """
+    try:
+        client = _get_client()
+        if not client.connected:
+            return jsonify({
+                "success": False,
+                "error": "Not connected to IBKR"
+            }), 400
+        
+        data = request.get_json() or {}
+        
+        # Validate parameters
+        symbol = data.get('symbol')
+        side = data.get('side')
+        quantity = data.get('quantity')
+        
+        if not symbol:
+            return jsonify({"success": False, "error": "Missing symbol"}), 400
+        if not side or side.lower() not in ('buy', 'sell'):
+            return jsonify({"success": False, "error": "side must be buy or sell"}), 400
+        if not quantity or float(quantity) <= 0:
+            return jsonify({"success": False, "error": "quantity must be > 0"}), 400
+        
+        market_type = data.get('marketType', 'USStock')
+        order_type = data.get('orderType', 'market').lower()
+        
+        # Place order
+        if order_type == 'limit':
+            price = data.get('price')
+            if not price or float(price) <= 0:
+                return jsonify({"success": False, "error": "Limit order requires price"}), 400
+            
+            result = client.place_limit_order(
+                symbol=symbol,
+                side=side,
+                quantity=float(quantity),
+                price=float(price),
+                market_type=market_type
+            )
+        else:
+            result = client.place_market_order(
+                symbol=symbol,
+                side=side,
+                quantity=float(quantity),
+                market_type=market_type
+            )
+        
+        if result.success:
+            return jsonify({
+                "success": True,
+                "message": result.message,
+                "data": {
+                    "orderId": result.order_id,
+                    "filled": result.filled,
+                    "avgPrice": result.avg_price,
+                    "status": result.status,
+                    "raw": result.raw
+                }
+            })
+        else:
+            return jsonify({
+                "success": False,
+                "error": result.message
+            }), 400
+            
+    except Exception as e:
+        logger.error(f"Place order failed: {e}")
+        return jsonify({
+            "success": False,
+            "error": str(e)
+        }), 500
+
+
+@ibkr_bp.route('/order/<int:order_id>', methods=['DELETE'])
+def cancel_order(order_id: int):
+    """
+    Cancel an order.
+    
+    DELETE /api/ibkr/order/<order_id>
+    """
+    try:
+        client = _get_client()
+        if not client.connected:
+            return jsonify({
+                "success": False,
+                "error": "Not connected to IBKR"
+            }), 400
+        
+        success = client.cancel_order(order_id)
+        
+        if success:
+            return jsonify({
+                "success": True,
+                "message": f"Order {order_id} cancelled"
+            })
+        else:
+            return jsonify({
+                "success": False,
+                "error": f"Order {order_id} not found"
+            }), 404
+            
+    except Exception as e:
+        logger.error(f"Cancel order failed: {e}")
+        return jsonify({
+            "success": False,
+            "error": str(e)
+        }), 500
+
+
+# ==================== Market Data ====================
+
+@ibkr_bp.route('/quote', methods=['GET'])
+def get_quote():
+    """
+    Get real-time quote.
+    
+    GET /api/ibkr/quote?symbol=AAPL&marketType=USStock
+    """
+    try:
+        client = _get_client()
+        if not client.connected:
+            return jsonify({
+                "success": False,
+                "error": "Not connected to IBKR"
+            }), 400
+        
+        symbol = request.args.get('symbol')
+        market_type = request.args.get('marketType', 'USStock')
+        
+        if not symbol:
+            return jsonify({"success": False, "error": "Missing symbol"}), 400
+        
+        quote = client.get_quote(symbol, market_type)
+        return jsonify(quote)
+        
+    except Exception as e:
+        logger.error(f"Get quote failed: {e}")
+        return jsonify({
+            "success": False,
+            "error": str(e)
+        }), 500

backend_api_python/app/services/ibkr_trading/README.md

@@ -0,0 +1,136 @@
+# Interactive Brokers Trading Module
+
+Supports US stocks and Hong Kong stocks trading via TWS or IB Gateway.
+
+## Installation
+
+```bash
+pip install ib_insync
+```
+
+Or the dependency is already in `requirements.txt`.
+
+## Port Reference
+
+| Client | Live Port | Paper Port |
+|--------|-----------|------------|
+| TWS    | 7497      | 7496       |
+| IB Gateway | 4001  | 4002       |
+
+## TWS / IB Gateway Configuration
+
+1. Open TWS or IB Gateway
+2. Go to **Configure** -> **API** -> **Settings**
+3. Enable the following options:
+   - ✅ Enable ActiveX and Socket Clients
+   - ✅ Allow connections from localhost only
+4. Set Socket port (refer to the table above)
+5. Click Apply / OK
+
+## API Endpoints
+
+### Connection Management
+
+```
+GET  /api/ibkr/status          # Get connection status
+POST /api/ibkr/connect         # Connect to TWS/Gateway
+POST /api/ibkr/disconnect      # Disconnect
+```
+
+### Account Queries
+
+```
+GET  /api/ibkr/account         # Account information
+GET  /api/ibkr/positions       # Current positions
+GET  /api/ibkr/orders          # Open orders
+```
+
+### Trading
+
+```
+POST   /api/ibkr/order         # Place order
+DELETE /api/ibkr/order/<id>    # Cancel order
+```
+
+### Market Data
+
+```
+GET  /api/ibkr/quote?symbol=AAPL&marketType=USStock
+```
+
+## Usage Examples
+
+### Connect
+
+```bash
+curl -X POST http://localhost:5000/api/ibkr/connect \
+  -H "Content-Type: application/json" \
+  -d '{"host": "127.0.0.1", "port": 7497, "clientId": 1}'
+```
+
+### Place Order
+
+```bash
+# Market order: buy 10 shares of AAPL
+curl -X POST http://localhost:5000/api/ibkr/order \
+  -H "Content-Type: application/json" \
+  -d '{"symbol": "AAPL", "side": "buy", "quantity": 10, "marketType": "USStock"}'
+
+# Limit order: sell 100 shares of Tencent
+curl -X POST http://localhost:5000/api/ibkr/order \
+  -H "Content-Type: application/json" \
+  -d '{"symbol": "0700.HK", "side": "sell", "quantity": 100, "marketType": "HShare", "orderType": "limit", "price": 300}'
+```
+
+### Get Positions
+
+```bash
+curl http://localhost:5000/api/ibkr/positions
+```
+
+## Symbol Format
+
+| Market | Format | Examples |
+|--------|--------|----------|
+| US Stock | Ticker symbol | `AAPL`, `TSLA`, `GOOGL` |
+| HK Stock | `XXXX.HK` or digits | `0700.HK`, `00700`, `700` |
+
+## Important Notes
+
+1. **TWS/Gateway must be running**: Ensure TWS or IB Gateway is started and logged in before using the API
+2. **Market data subscription**: Real-time quotes may require market data subscription
+3. **Client ID**: Use different clientId if multiple programs connect to the same TWS/Gateway
+4. **Readonly mode**: Set `readonly: true` to only query without trading
+5. **Multi-account**: Specify `account` parameter if you have multiple sub-accounts
+
+## Troubleshooting
+
+| Error | Cause | Solution |
+|-------|-------|----------|
+| Connection failed | TWS/Gateway not running | Start and login to TWS/Gateway |
+| Connection failed | Wrong port | Check API port setting in TWS/Gateway |
+| Connection failed | API not enabled | Enable Socket API in TWS/Gateway settings |
+| Client ID conflict | Same clientId already connected | Use a different clientId |
+| Invalid contract | Wrong symbol format | Check symbol format |
+
+## Removing This Module
+
+To remove this module, delete the following files/directories:
+
+```
+backend_api_python/app/services/ibkr_trading/    # Entire directory
+backend_api_python/app/routes/ibkr.py            # Route file
+```
+
+Then remove the related import and registration code in `app/routes/__init__.py`.
+
+## Docker Note
+
+When running in Docker, IBKR trading requires TWS/IB Gateway to be accessible from the container. 
+For local deployment, you can:
+
+1. Run TWS/Gateway on host machine
+2. Use host network mode or configure port mapping
+3. Set `host` to the host machine's IP address (e.g., `host.docker.internal` on Docker Desktop)
+
+> **Note**: IBKR connection parameters are configured per-strategy in the frontend, not via environment variables.

backend_api_python/app/services/ibkr_trading/__init__.py

@@ -0,0 +1,14 @@
+"""
+Interactive Brokers (IBKR) Trading Module
+
+Supports US stocks and Hong Kong stocks trading via TWS or IB Gateway.
+
+Port Reference:
+- TWS Live: 7497, TWS Paper: 7496
+- IB Gateway Live: 4001, IB Gateway Paper: 4002
+"""
+
+from app.services.ibkr_trading.client import IBKRClient, IBKRConfig
+from app.services.ibkr_trading.symbols import normalize_symbol, parse_symbol
+
+__all__ = ['IBKRClient', 'IBKRConfig', 'normalize_symbol', 'parse_symbol']

backend_api_python/app/services/ibkr_trading/client.py

@@ -0,0 +1,523 @@
+"""
+Interactive Brokers Trading Client
+
+Uses ib_insync library to connect to TWS or IB Gateway for trading.
+"""
+
+import time
+import threading
+from dataclasses import dataclass, field
+from typing import Optional, Dict, Any, List
+
+from app.utils.logger import get_logger
+from app.services.ibkr_trading.symbols import normalize_symbol, format_display_symbol
+
+logger = get_logger(__name__)
+
+# Lazy import ib_insync to allow other features to work without it installed
+ib_insync = None
+
+
+def _ensure_ib_insync():
+    """Ensure ib_insync is imported."""
+    global ib_insync
+    if ib_insync is None:
+        try:
+            import ib_insync as _ib
+            ib_insync = _ib
+        except ImportError:
+            raise ImportError(
+                "ib_insync is not installed. Run: pip install ib_insync"
+            )
+    return ib_insync
+
+
+@dataclass
+class IBKRConfig:
+    """IBKR connection configuration."""
+    host: str = "127.0.0.1"
+    port: int = 7497  # TWS Live:7497, TWS Paper:7496, Gateway Live:4001, Gateway Paper:4002
+    client_id: int = 1
+    readonly: bool = False
+    account: str = ""  # Leave empty to auto-select first account
+    timeout: float = 20.0  # Connection timeout in seconds
+
+
+@dataclass
+class OrderResult:
+    """Order execution result."""
+    success: bool
+    order_id: int = 0
+    filled: float = 0.0
+    avg_price: float = 0.0
+    status: str = ""
+    message: str = ""
+    raw: Dict[str, Any] = field(default_factory=dict)
+
+
+class IBKRClient:
+    """
+    Interactive Brokers Trading Client
+    
+    Usage:
+        config = IBKRConfig(port=7497)  # TWS Live
+        client = IBKRClient(config)
+        
+        if client.connect():
+            # Place order
+            result = client.place_market_order("AAPL", "buy", 10, "USStock")
+            
+            # Get positions
+            positions = client.get_positions()
+            
+            client.disconnect()
+    """
+    
+    def __init__(self, config: Optional[IBKRConfig] = None):
+        self.config = config or IBKRConfig()
+        self._ib = None
+        self._connected = False
+        self._lock = threading.Lock()
+        self._account = ""
+    
+    @property
+    def connected(self) -> bool:
+        """Check if connected."""
+        if self._ib is None:
+            return False
+        return self._ib.isConnected()
+    
+    def connect(self) -> bool:
+        """
+        Connect to TWS or IB Gateway.
+        
+        Returns:
+            True if connected successfully
+        """
+        with self._lock:
+            if self.connected:
+                return True
+            
+            try:
+                _ensure_ib_insync()
+                
+                if self._ib is None:
+                    self._ib = ib_insync.IB()
+                
+                logger.info(f"Connecting to IBKR: {self.config.host}:{self.config.port} (clientId={self.config.client_id})")
+                
+                self._ib.connect(
+                    host=self.config.host,
+                    port=self.config.port,
+                    clientId=self.config.client_id,
+                    readonly=self.config.readonly,
+                    timeout=self.config.timeout
+                )
+                
+                self._connected = True
+                
+                # Get account
+                accounts = self._ib.managedAccounts()
+                if accounts:
+                    self._account = self.config.account or accounts[0]
+                    logger.info(f"IBKR connected, account: {self._account}")
+                else:
+                    logger.warning("IBKR connected but no account info retrieved")
+                
+                return True
+                
+            except Exception as e:
+                logger.error(f"IBKR connection failed: {e}")
+                self._connected = False
+                return False
+    
+    def disconnect(self):
+        """Disconnect from IBKR."""
+        with self._lock:
+            if self._ib is not None:
+                try:
+                    self._ib.disconnect()
+                except Exception as e:
+                    logger.warning(f"IBKR disconnect exception: {e}")
+                finally:
+                    self._connected = False
+                    logger.info("IBKR disconnected")
+    
+    def _ensure_connected(self):
+        """Ensure connection is established."""
+        if not self.connected:
+            if not self.connect():
+                raise ConnectionError("Cannot connect to IBKR")
+    
+    def _create_contract(self, symbol: str, market_type: str):
+        """
+        Create IB contract object.
+        
+        Args:
+            symbol: Symbol code
+            market_type: Market type (USStock, HShare)
+        """
+        _ensure_ib_insync()
+        
+        ib_symbol, exchange, currency = normalize_symbol(symbol, market_type)
+        
+        contract = ib_insync.Stock(
+            symbol=ib_symbol,
+            exchange=exchange,
+            currency=currency
+        )
+        
+        return contract
+    
+    def _qualify_contract(self, contract) -> bool:
+        """Validate contract."""
+        try:
+            qualified = self._ib.qualifyContracts(contract)
+            return len(qualified) > 0
+        except Exception as e:
+            logger.warning(f"Contract qualification failed: {e}")
+            return False
+    
+    # ==================== Order Methods ====================
+    
+    def place_market_order(
+        self,
+        symbol: str,
+        side: str,
+        quantity: float,
+        market_type: str = "USStock",
+    ) -> OrderResult:
+        """
+        Place a market order.
+        
+        Args:
+            symbol: Symbol code (e.g., AAPL, 0700.HK)
+            side: Direction ("buy" or "sell")
+            quantity: Number of shares
+            market_type: Market type ("USStock" or "HShare")
+            
+        Returns:
+            OrderResult
+        """
+        try:
+            self._ensure_connected()
+            _ensure_ib_insync()
+            
+            contract = self._create_contract(symbol, market_type)
+            if not self._qualify_contract(contract):
+                return OrderResult(
+                    success=False,
+                    message=f"Invalid contract: {symbol}"
+                )
+            
+            order = ib_insync.MarketOrder(
+                action="BUY" if side.lower() == "buy" else "SELL",
+                totalQuantity=quantity,
+                account=self._account
+            )
+            
+            trade = self._ib.placeOrder(contract, order)
+            
+            # Wait for order status update
+            self._ib.sleep(2)
+            
+            return OrderResult(
+                success=True,
+                order_id=trade.order.orderId,
+                filled=float(trade.orderStatus.filled or 0),
+                avg_price=float(trade.orderStatus.avgFillPrice or 0),
+                status=trade.orderStatus.status,
+                message="Order submitted",
+                raw={
+                    "orderId": trade.order.orderId,
+                    "status": trade.orderStatus.status,
+                    "filled": float(trade.orderStatus.filled or 0),
+                    "remaining": float(trade.orderStatus.remaining or 0),
+                }
+            )
+            
+        except Exception as e:
+            logger.error(f"Order failed: {e}")
+            return OrderResult(
+                success=False,
+                message=str(e)
+            )
+    
+    def place_limit_order(
+        self,
+        symbol: str,
+        side: str,
+        quantity: float,
+        price: float,
+        market_type: str = "USStock",
+    ) -> OrderResult:
+        """
+        Place a limit order.
+        
+        Args:
+            symbol: Symbol code
+            side: Direction ("buy" or "sell")
+            quantity: Number of shares
+            price: Limit price
+            market_type: Market type
+            
+        Returns:
+            OrderResult
+        """
+        try:
+            self._ensure_connected()
+            _ensure_ib_insync()
+            
+            contract = self._create_contract(symbol, market_type)
+            if not self._qualify_contract(contract):
+                return OrderResult(
+                    success=False,
+                    message=f"Invalid contract: {symbol}"
+                )
+            
+            order = ib_insync.LimitOrder(
+                action="BUY" if side.lower() == "buy" else "SELL",
+                totalQuantity=quantity,
+                lmtPrice=price,
+                account=self._account
+            )
+            
+            trade = self._ib.placeOrder(contract, order)
+            self._ib.sleep(1)
+            
+            return OrderResult(
+                success=True,
+                order_id=trade.order.orderId,
+                filled=float(trade.orderStatus.filled or 0),
+                avg_price=float(trade.orderStatus.avgFillPrice or 0),
+                status=trade.orderStatus.status,
+                message="Limit order submitted",
+                raw={
+                    "orderId": trade.order.orderId,
+                    "status": trade.orderStatus.status,
+                    "limitPrice": price,
+                }
+            )
+            
+        except Exception as e:
+            logger.error(f"Limit order failed: {e}")
+            return OrderResult(
+                success=False,
+                message=str(e)
+            )
+    
+    def cancel_order(self, order_id: int) -> bool:
+        """
+        Cancel an order.
+        
+        Args:
+            order_id: Order ID
+            
+        Returns:
+            True if cancelled successfully
+        """
+        try:
+            self._ensure_connected()
+            
+            for trade in self._ib.openTrades():
+                if trade.order.orderId == order_id:
+                    self._ib.cancelOrder(trade.order)
+                    logger.info(f"Order {order_id} cancelled")
+                    return True
+            
+            logger.warning(f"Order not found: {order_id}")
+            return False
+            
+        except Exception as e:
+            logger.error(f"Cancel order failed: {e}")
+            return False
+    
+    # ==================== Query Methods ====================
+    
+    def get_account_summary(self) -> Dict[str, Any]:
+        """
+        Get account summary.
+        
+        Returns:
+            Account info dictionary
+        """
+        try:
+            self._ensure_connected()
+            
+            summary = self._ib.accountSummary(self._account)
+            result = {}
+            for item in summary:
+                result[item.tag] = {
+                    "value": item.value,
+                    "currency": item.currency
+                }
+            
+            return {
+                "account": self._account,
+                "summary": result,
+                "success": True
+            }
+            
+        except Exception as e:
+            logger.error(f"Get account summary failed: {e}")
+            return {"success": False, "error": str(e)}
+    
+    def get_positions(self) -> List[Dict[str, Any]]:
+        """
+        Get current positions.
+        
+        Returns:
+            List of positions
+        """
+        try:
+            self._ensure_connected()
+            
+            positions = self._ib.positions(self._account)
+            result = []
+            
+            for pos in positions:
+                contract = pos.contract
+                exchange = contract.exchange or contract.primaryExchange or "SMART"
+                
+                result.append({
+                    "symbol": format_display_symbol(contract.symbol, exchange),
+                    "ib_symbol": contract.symbol,
+                    "secType": contract.secType,
+                    "exchange": exchange,
+                    "currency": contract.currency,
+                    "quantity": float(pos.position),
+                    "avgCost": float(pos.avgCost),
+                    "marketValue": float(pos.position) * float(pos.avgCost),
+                })
+            
+            return result
+            
+        except Exception as e:
+            logger.error(f"Get positions failed: {e}")
+            return []
+    
+    def get_open_orders(self) -> List[Dict[str, Any]]:
+        """
+        Get open orders.
+        
+        Returns:
+            List of orders
+        """
+        try:
+            self._ensure_connected()
+            
+            trades = self._ib.openTrades()
+            result = []
+            
+            for trade in trades:
+                order = trade.order
+                contract = trade.contract
+                status = trade.orderStatus
+                
+                result.append({
+                    "orderId": order.orderId,
+                    "symbol": contract.symbol,
+                    "action": order.action,
+                    "quantity": float(order.totalQuantity),
+                    "orderType": order.orderType,
+                    "limitPrice": getattr(order, 'lmtPrice', None),
+                    "status": status.status,
+                    "filled": float(status.filled or 0),
+                    "remaining": float(status.remaining or 0),
+                    "avgFillPrice": float(status.avgFillPrice or 0),
+                })
+            
+            return result
+            
+        except Exception as e:
+            logger.error(f"Get orders failed: {e}")
+            return []
+    
+    def get_quote(self, symbol: str, market_type: str = "USStock") -> Dict[str, Any]:
+        """
+        Get real-time quote.
+        
+        Args:
+            symbol: Symbol code
+            market_type: Market type
+            
+        Returns:
+            Quote data
+        """
+        try:
+            self._ensure_connected()
+            
+            contract = self._create_contract(symbol, market_type)
+            if not self._qualify_contract(contract):
+                return {"success": False, "error": f"Invalid contract: {symbol}"}
+            
+            # Request market data
+            ticker = self._ib.reqMktData(contract, '', False, False)
+            
+            # Wait for data
+            self._ib.sleep(2)
+            
+            result = {
+                "success": True,
+                "symbol": symbol,
+                "bid": ticker.bid if ticker.bid and ticker.bid > 0 else None,
+                "ask": ticker.ask if ticker.ask and ticker.ask > 0 else None,
+                "last": ticker.last if ticker.last and ticker.last > 0 else None,
+                "high": ticker.high if ticker.high and ticker.high > 0 else None,
+                "low": ticker.low if ticker.low and ticker.low > 0 else None,
+                "volume": ticker.volume if ticker.volume and ticker.volume > 0 else None,
+                "close": ticker.close if ticker.close and ticker.close > 0 else None,
+            }
+            
+            # Cancel subscription
+            self._ib.cancelMktData(contract)
+            
+            return result
+            
+        except Exception as e:
+            logger.error(f"Get quote failed: {e}")
+            return {"success": False, "error": str(e)}
+    
+    def get_connection_status(self) -> Dict[str, Any]:
+        """Get connection status."""
+        return {
+            "connected": self.connected,
+            "host": self.config.host,
+            "port": self.config.port,
+            "clientId": self.config.client_id,
+            "account": self._account,
+            "readonly": self.config.readonly,
+        }
+
+
+# Global singleton (optional)
+_global_client: Optional[IBKRClient] = None
+_global_lock = threading.Lock()
+
+
+def get_ibkr_client(config: Optional[IBKRConfig] = None) -> IBKRClient:
+    """
+    Get global IBKR client singleton.
+    
+    Args:
+        config: Configuration (only effective on first call)
+        
+    Returns:
+        IBKRClient instance
+    """
+    global _global_client
+    
+    with _global_lock:
+        if _global_client is None:
+            _global_client = IBKRClient(config)
+        return _global_client
+
+
+def reset_ibkr_client():
+    """Reset global client (disconnect and clear instance)."""
+    global _global_client
+    
+    with _global_lock:
+        if _global_client is not None:
+            _global_client.disconnect()
+            _global_client = None

backend_api_python/app/services/ibkr_trading/symbols.py

@@ -0,0 +1,90 @@
+"""
+Symbol Mapping and Conversion
+
+Converts QuantDinger system symbols to IB contract format.
+"""
+
+from typing import Tuple, Optional
+
+
+def normalize_symbol(symbol: str, market_type: str) -> Tuple[str, str, str]:
+    """
+    Convert system symbol to IB contract parameters.
+    
+    Args:
+        symbol: Symbol code in the system
+        market_type: Market type (USStock, HShare)
+        
+    Returns:
+        (ib_symbol, exchange, currency)
+    """
+    symbol = (symbol or "").strip().upper()
+    market_type = (market_type or "").strip()
+    
+    if market_type == "USStock":
+        # US stocks: AAPL, TSLA, GOOGL
+        # Use SMART routing for best execution
+        return symbol, "SMART", "USD"
+    
+    elif market_type == "HShare":
+        # Hong Kong stock formats:
+        # - 0700.HK -> 700
+        # - 00700 -> 700
+        # - 700 -> 700
+        ib_symbol = symbol
+        
+        # Remove .HK suffix
+        if ib_symbol.endswith(".HK"):
+            ib_symbol = ib_symbol[:-3]
+        
+        # Remove leading zeros
+        ib_symbol = ib_symbol.lstrip("0") or "0"
+        
+        return ib_symbol, "SEHK", "HKD"
+    
+    else:
+        # Default to US stock
+        return symbol, "SMART", "USD"
+
+
+def parse_symbol(symbol: str) -> Tuple[str, Optional[str]]:
+    """
+    Parse symbol and auto-detect market type.
+    
+    Args:
+        symbol: Symbol code
+        
+    Returns:
+        (clean_symbol, market_type)
+    """
+    symbol = (symbol or "").strip().upper()
+    
+    # HK stock: ends with .HK or all digits
+    if symbol.endswith(".HK"):
+        return symbol, "HShare"
+    
+    # All digits (likely HK stock code)
+    clean = symbol.lstrip("0")
+    if clean.isdigit() and len(clean) <= 5:
+        return symbol, "HShare"
+    
+    # Default to US stock
+    return symbol, "USStock"
+
+
+def format_display_symbol(ib_symbol: str, exchange: str) -> str:
+    """
+    Convert IB contract format back to display format.
+    
+    Args:
+        ib_symbol: IB symbol
+        exchange: Exchange code
+        
+    Returns:
+        Display symbol
+    """
+    if exchange == "SEHK":
+        # HK stock: pad to 4 digits, add .HK
+        padded = ib_symbol.zfill(4)
+        return f"{padded}.HK"
+    return ib_symbol

backend_api_python/app/services/live_trading/execution.py

@@ -1,5 +1,9 @@
 """
 Translate a strategy signal into a direct-exchange order call.
+
+Supports:
+- Crypto exchanges: Binance, OKX, Bitget, Bybit, Coinbase, Kraken, KuCoin, Gate, Bitfinex
+- Traditional brokers: Interactive Brokers (IBKR) for US/HK stocks
 """
 
 from __future__ import annotations
@@ -21,6 +25,9 @@ from app.services.live_trading.kucoin import KucoinFuturesClient
 from app.services.live_trading.gate import GateSpotClient, GateUsdtFuturesClient
 from app.services.live_trading.bitfinex import BitfinexClient, BitfinexDerivativesClient
 
+# Lazy import IBKR
+IBKRClient = None
+
 
 def _signal_to_sides(signal_type: str) -> Tuple[str, str, bool]:
     """
@@ -144,6 +151,80 @@ def place_order_from_signal(
     if isinstance(client, KrakenFuturesClient):
         return client.place_market_order(symbol=symbol, side=side, size=qty, reduce_only=reduce_only, client_order_id=client_order_id)
 
+    # Check for IBKR client (lazy import to avoid circular dependency)
+    global IBKRClient
+    if IBKRClient is None:
+        try:
+            from app.services.ibkr_trading import IBKRClient as _IBKRClient
+            IBKRClient = _IBKRClient
+        except ImportError:
+            pass
+
+    if IBKRClient is not None and isinstance(client, IBKRClient):
+        return _place_ibkr_order(
+            client=client,
+            signal_type=signal_type,
+            symbol=symbol,
+            amount=qty,
+            exchange_config=exchange_config,
+        )
+
     raise LiveTradingError(f"Unsupported client type: {type(client)}")
 
 
+def _place_ibkr_order(
+    client,
+    *,
+    signal_type: str,
+    symbol: str,
+    amount: float,
+    exchange_config: Optional[Dict[str, Any]] = None,
+) -> LiveOrderResult:
+    """
+    Place order via IBKR for US/HK stocks.
+
+    Signal mapping for stocks (no short selling in this implementation):
+    - open_long / add_long -> BUY
+    - close_long / reduce_long -> SELL
+    - open_short / close_short -> Not supported (raises error)
+    """
+    sig = (signal_type or "").strip().lower()
+
+    # Stock trading: no short selling support in basic implementation
+    if "short" in sig:
+        raise LiveTradingError("IBKR stock trading does not support short signals in this implementation")
+
+    # Determine action
+    if sig in ("open_long", "add_long"):
+        action = "buy"
+    elif sig in ("close_long", "reduce_long"):
+        action = "sell"
+    else:
+        raise LiveTradingError(f"Unsupported signal_type for IBKR: {signal_type}")
+
+    # Get market type from config
+    cfg = exchange_config if isinstance(exchange_config, dict) else {}
+    market_type = str(cfg.get("market_type") or cfg.get("market_category") or "USStock").strip()
+
+    # Place market order
+    result = client.place_market_order(
+        symbol=symbol,
+        action=action,
+        quantity=amount,
+        market_type=market_type,
+    )
+
+    # Convert IBKRClient result to LiveOrderResult format
+    return LiveOrderResult(
+        success=result.success,
+        exchange_order_id=str(result.order_id) if result.order_id else "",
+        filled=result.filled,
+        avg_price=result.avg_price,
+        raw={
+            "status": result.status,
+            "message": result.message,
+            "raw": result.raw,
+        },
+    )
+
+

backend_api_python/app/services/live_trading/factory.py

@@ -1,10 +1,14 @@
 """
 Factory for direct exchange clients.
+
+Supports:
+- Crypto exchanges: Binance, OKX, Bitget, Bybit, Coinbase, Kraken, KuCoin, Gate, Bitfinex
+- Traditional brokers: Interactive Brokers (IBKR) for US/HK stocks
 """
 
 from __future__ import annotations
 
-from typing import Any, Dict
+from typing import Any, Dict, Union
 
 from app.services.live_trading.base import BaseRestClient, LiveTradingError
 from app.services.live_trading.binance import BinanceFuturesClient
@@ -20,6 +24,10 @@ from app.services.live_trading.kucoin import KucoinSpotClient, KucoinFuturesClie
 from app.services.live_trading.gate import GateSpotClient, GateUsdtFuturesClient
 from app.services.live_trading.bitfinex import BitfinexClient, BitfinexDerivativesClient
 
+# Lazy import IBKR to avoid ImportError if ib_insync not installed
+IBKRClient = None
+IBKRConfig = None
+
 
 def _get(cfg: Dict[str, Any], *keys: str) -> str:
     for k in keys:
@@ -101,6 +109,53 @@ def create_client(exchange_config: Dict[str, Any], *, market_type: str = "swap")
             return BitfinexClient(api_key=api_key, secret_key=secret_key, base_url=base_url)
         return BitfinexDerivativesClient(api_key=api_key, secret_key=secret_key, base_url=base_url)
 
+    # Traditional brokers (IBKR for US/HK stocks)
+    if exchange_id == "ibkr":
+        return create_ibkr_client(exchange_config)
+
     raise LiveTradingError(f"Unsupported exchange_id: {exchange_id}")
 
 
+def create_ibkr_client(exchange_config: Dict[str, Any]):
+    """
+    Create IBKR client for US/HK stock trading.
+
+    exchange_config should contain:
+    - ibkr_host: TWS/Gateway host (default: 127.0.0.1)
+    - ibkr_port: TWS/Gateway port (default: 7497)
+    - ibkr_client_id: Client ID (default: 1)
+    - ibkr_account: Account ID (optional, auto-select if empty)
+    """
+    global IBKRClient, IBKRConfig
+
+    # Lazy import to avoid ImportError if ib_insync not installed
+    if IBKRClient is None or IBKRConfig is None:
+        try:
+            from app.services.ibkr_trading import IBKRClient as _IBKRClient, IBKRConfig as _IBKRConfig
+            IBKRClient = _IBKRClient
+            IBKRConfig = _IBKRConfig
+        except ImportError:
+            raise LiveTradingError("IBKR trading requires ib_insync. Run: pip install ib_insync")
+
+    host = str(exchange_config.get("ibkr_host") or "127.0.0.1").strip()
+    port = int(exchange_config.get("ibkr_port") or 7497)
+    client_id = int(exchange_config.get("ibkr_client_id") or 1)
+    account = str(exchange_config.get("ibkr_account") or "").strip()
+
+    config = IBKRConfig(
+        host=host,
+        port=port,
+        client_id=client_id,
+        account=account,
+        readonly=False,
+    )
+
+    client = IBKRClient(config)
+
+    # Connect immediately (IBKR requires active connection)
+    if not client.connect():
+        raise LiveTradingError("Failed to connect to IBKR TWS/Gateway. Please check if it's running.")
+
+    return client
+
+

backend_api_python/app/services/pending_order_worker.py

@@ -39,6 +39,9 @@ from app.services.live_trading.symbols import to_gate_currency_pair
 from app.utils.db import get_db_connection
 from app.utils.logger import get_logger
 
+# Lazy import IBKR to avoid ImportError if ib_insync not installed
+IBKRClient = None
+
 logger = get_logger(__name__)
 
 
@@ -693,6 +696,29 @@ class PendingOrderWorker:
             _notify_live_best_effort(status="failed", error=f"create_client_failed:{e}")
             return
 
+        # Check if this is an IBKR client (US/HK stocks)
+        global IBKRClient
+        if IBKRClient is None:
+            try:
+                from app.services.ibkr_trading import IBKRClient as _IBKRClient
+                IBKRClient = _IBKRClient
+            except ImportError:
+                pass
+
+        if IBKRClient is not None and isinstance(client, IBKRClient):
+            # Execute IBKR order (separate flow for stocks)
+            self._execute_ibkr_order(
+                order_id=order_id,
+                order_row=order_row,
+                payload=payload,
+                client=client,
+                strategy_id=strategy_id,
+                exchange_config=exchange_config,
+                _notify_live_best_effort=_notify_live_best_effort,
+                _console_print=_console_print,
+            )
+            return
+
         def _make_client_oid(phase: str = "") -> str:
             """
             Build a client order id.
@@ -1539,6 +1565,143 @@ class PendingOrderWorker:
             amount_hint=filled if filled > 0 else amount,
         )
 
+    def _execute_ibkr_order(
+        self,
+        *,
+        order_id: int,
+        order_row: Dict[str, Any],
+        payload: Dict[str, Any],
+        client,  # IBKRClient instance
+        strategy_id: int,
+        exchange_config: Dict[str, Any],
+        _notify_live_best_effort,
+        _console_print,
+    ) -> None:
+        """
+        Execute order via Interactive Brokers for US/HK stocks.
+
+        Simplified flow compared to crypto (no maker->market fallback):
+        - Place market order directly
+        - Wait for fill
+        - Record trade
+        """
+        signal_type = payload.get("signal_type") or order_row.get("signal_type")
+        symbol = payload.get("symbol") or order_row.get("symbol")
+        amount = float(payload.get("amount") or order_row.get("amount") or 0.0)
+        ref_price = float(payload.get("ref_price") or payload.get("price") or order_row.get("price") or 0.0)
+
+        sig = str(signal_type or "").strip().lower()
+
+        # Stocks: no short selling in basic implementation
+        if "short" in sig:
+            self._mark_failed(order_id=order_id, error="ibkr_stock_short_not_supported")
+            _console_print(f"[worker] IBKR order rejected: strategy_id={strategy_id} pending_id={order_id} short not supported")
+            _notify_live_best_effort(status="failed", error="ibkr_stock_short_not_supported")
+            return
+
+        # Map signal to action
+        if sig in ("open_long", "add_long"):
+            action = "buy"
+        elif sig in ("close_long", "reduce_long"):
+            action = "sell"
+        else:
+            self._mark_failed(order_id=order_id, error=f"ibkr_unsupported_signal:{signal_type}")
+            _console_print(f"[worker] IBKR order rejected: strategy_id={strategy_id} pending_id={order_id} unsupported signal {signal_type}")
+            _notify_live_best_effort(status="failed", error=f"ibkr_unsupported_signal:{signal_type}")
+            return
+
+        # Get market type (USStock or HShare)
+        market_type = str(
+            payload.get("market_type") or
+            payload.get("market_category") or
+            exchange_config.get("market_type") or
+            exchange_config.get("market_category") or
+            "USStock"
+        ).strip()
+
+        try:
+            # Place market order via IBKR
+            result = client.place_market_order(
+                symbol=symbol,
+                action=action,
+                quantity=amount,
+                market_type=market_type,
+            )
+
+            if not result.success:
+                self._mark_failed(order_id=order_id, error=f"ibkr_order_failed:{result.message}")
+                _console_print(f"[worker] IBKR order failed: strategy_id={strategy_id} pending_id={order_id} err={result.message}")
+                _notify_live_best_effort(status="failed", error=f"ibkr_order_failed:{result.message}")
+                return
+
+            filled = float(result.filled or 0.0)
+            avg_price = float(result.avg_price or 0.0)
+            exchange_order_id = str(result.order_id or "")
+
+            # Use ref_price if avg_price not available
+            if avg_price <= 0 and ref_price > 0:
+                avg_price = ref_price
+            if filled <= 0:
+                filled = amount
+
+            executed_at = int(time.time())
+
+            # Mark order as sent
+            self._mark_sent(
+                order_id=order_id,
+                note="ibkr_order_sent",
+                exchange_id="ibkr",
+                exchange_order_id=exchange_order_id,
+                exchange_response_json=json.dumps(result.raw or {}, ensure_ascii=False),
+                filled=filled,
+                avg_price=avg_price,
+                executed_at=executed_at,
+            )
+            _console_print(f"[worker] IBKR order sent: strategy_id={strategy_id} pending_id={order_id} order_id={exchange_order_id} filled={filled} avg={avg_price}")
+
+            # Record trade and update position
+            try:
+                if filled > 0 and avg_price > 0:
+                    logger.info(
+                        f"IBKR record begin: pending_id={order_id} strategy_id={strategy_id} symbol={symbol} "
+                        f"signal={signal_type} filled={filled} avg_price={avg_price}"
+                    )
+                    profit, _pos = apply_fill_to_local_position(
+                        strategy_id=strategy_id,
+                        symbol=str(symbol),
+                        signal_type=str(signal_type),
+                        filled=filled,
+                        avg_price=avg_price,
+                    )
+                    record_trade(
+                        strategy_id=strategy_id,
+                        symbol=str(symbol),
+                        trade_type=str(signal_type),
+                        price=avg_price,
+                        amount=filled,
+                        commission=0.0,  # IBKR commission is complex, skip for now
+                        commission_ccy="USD",
+                        profit=profit,
+                    )
+                    logger.info(f"IBKR record done: pending_id={order_id} strategy_id={strategy_id} symbol={symbol}")
+            except Exception as e:
+                logger.warning(f"IBKR record_trade/update_position failed: pending_id={order_id}, err={e}")
+
+            # Notify success
+            _notify_live_best_effort(
+                status="sent",
+                exchange_id="ibkr",
+                exchange_order_id=exchange_order_id,
+                price_hint=avg_price,
+                amount_hint=filled,
+            )
+
+        except Exception as e:
+            logger.error(f"IBKR order execution failed: pending_id={order_id}, strategy_id={strategy_id}, err={e}")
+            self._mark_failed(order_id=order_id, error=f"ibkr_exception:{e}")
+            _console_print(f"[worker] IBKR order exception: strategy_id={strategy_id} pending_id={order_id} err={e}")
+            _notify_live_best_effort(status="failed", error=str(e))
+
     def _mark_sent(
         self,
         order_id: int,