bg task cancelling

tunerlistd/main.py

@@ -9,6 +9,7 @@ from uvicorn import run
 
 app = FastAPI()
 event = Event()
+background_tasks = []
 
 tunerlist = TunerList()
 bluetooth = Bluetooth()
@@ -43,7 +44,12 @@ async def startup_event():
         tunerlist_listener(),
         bluetooth_listener()
     ]:
-        create_task(i)
+        background_tasks.append(create_task(i))
+
+@app.on_event("shutdown")
+async def shutdown_event():
+    for task in background_tasks:
+        task.cancel()
 
 @app.websocket("/ws")
 async def websocket_endpoint(websocket: WebSocket):