add debug message to output latest file

backend/app.py

@@ -1,12 +1,12 @@
-"""Flask backend for IB dashboard.
+"""Flask backend for IB dashboard.
-
+
-Provides simple REST endpoints that the vanilla-JS frontend polls:
+Provides simple REST endpoints that the vanilla-JS frontend polls:
-- GET /api/quotes -> latest market quotes
+- GET /api/quotes -> latest market quotes
-- GET /api/positions -> latest positions
+- GET /api/positions -> latest positions
-- POST /api/subscribe { symbols: ["AAPL","MSFT"] } -> start subscribing
+- POST /api/subscribe { symbols: ["AAPL","MSFT"] } -> start subscribing
-
+
-This app expects an IB Gateway or TWS running locally on port 7496.
+This app expects an IB Gateway or TWS running locally on port 7496.
-"""
+"""
 from flask import Flask, jsonify, request, send_from_directory
 import os
 import threading
@@ -132,49 +132,54 @@ def start_flex_startup_sync_if_needed() -> None:
 # instantiate the IB client with a process-unique client id to avoid
 # collisions when Flask's reloader spawns multiple processes.
 ib = IBClient(client_id=os.getpid())
-# Start connection only in the main process (Werkzeug sets WERKZEUG_RUN_MAIN)
+# Start connection only in the main process (Werkzeug sets WERKZEUG_RUN_MAIN)
-if os.environ.get("WERKZEUG_RUN_MAIN") == "true" or not os.environ.get("WERKZEUG_RUN_MAIN"):
+if os.environ.get("WERKZEUG_RUN_MAIN") == "true" or not os.environ.get("WERKZEUG_RUN_MAIN"):
-    # attempt to start the connection; failures are logged by the client
+    # attempt to start the connection; failures are logged by the client
     try:
         ib.connect_and_start()
     except Exception:
         pass
     start_flex_startup_sync_if_needed()
-
+
-
+
-@app.route("/")
+@app.route("/")
-def index():
+def index():
-    return send_from_directory(app.static_folder, "index.html")
+    return send_from_directory(app.static_folder, "index.html")
-
+
-
+
-@app.route("/api/quotes")
+@app.route("/api/quotes")
-def api_quotes():
+def api_quotes():
-    return jsonify(ib.get_quotes())
+    return jsonify(ib.get_quotes())
-
+
-
+
-@app.route("/api/positions")
+@app.route("/api/positions")
-def api_positions():
+def api_positions():
-    # request a fresh positions snapshot from IB and wait briefly for callbacks
+    # request a fresh positions snapshot from IB and wait briefly for callbacks
-    try:
+    try:
-        ib.request_positions()
+        ib.request_positions()
-    except Exception:
+    except Exception:
-        pass
+        pass
-    # wait up to 2 seconds for positions to arrive
+    # wait up to 2 seconds for positions to arrive
-    deadline = time.time() + 2.0
+    deadline = time.time() + 2.0
-    while time.time() < deadline:
+    while time.time() < deadline:
-        positions = ib.get_positions()
+        positions = ib.get_positions()
-        if positions:
+        if positions:
-            return jsonify(positions)
+            return jsonify(positions)
-        time.sleep(0.1)
+        time.sleep(0.1)
-    # return whatever we have (possibly empty)
+    # return whatever we have (possibly empty)
-    return jsonify(ib.get_positions())
+    return jsonify(ib.get_positions())
-
+
-
+
 @app.route("/api/lots")
 def api_lots():
+    api_flex_sync()
     flex_status = get_flex_status()
     if flex_status.get("configured") and flex_status.get("data_dir"):
         latest_file, flex_lots = load_latest_flex_lots(flex_status["data_dir"])
+        print(
+            f"[D]Latest file{latest_file} "
+        )
+
         if latest_file and flex_lots:
             return jsonify(flex_lots)
 
@@ -341,19 +346,19 @@ def api_flex_sync():
         _flex_sync_state["last_result"] = "error"
         _flex_sync_state["last_error"] = str(exc)
         return jsonify({"ok": False, "error": str(exc)}), 500
-
+
-
+
-@app.route("/api/subscribe", methods=["POST"])
+@app.route("/api/subscribe", methods=["POST"])
-def api_subscribe():
+def api_subscribe():
-    data = request.get_json(force=True)
+    data = request.get_json(force=True)
-    symbols = data.get("symbols", []) if isinstance(data, dict) else []
+    symbols = data.get("symbols", []) if isinstance(data, dict) else []
-    if not isinstance(symbols, list):
+    if not isinstance(symbols, list):
-        return jsonify({"error": "symbols must be a list"}), 400
+        return jsonify({"error": "symbols must be a list"}), 400
-    for s in symbols:
+    for s in symbols:
-        ib.subscribe_market_data(s)
+        ib.subscribe_market_data(s)
-    return jsonify({"subscribed": symbols})
+    return jsonify({"subscribed": symbols})
-
+
-
+
-if __name__ == "__main__":
+if __name__ == "__main__":
-    # simple dev server; disable reloader to avoid duplicate IB client instances
+    # simple dev server; disable reloader to avoid duplicate IB client instances
-    app.run(debug=True, port=8000, use_reloader=False)
+    app.run(debug=True, port=8000, use_reloader=False)