Code fixing

app.py

@@ -857,22 +857,25 @@ def create_interface():
     return interface
 
 
-# Create FastAPI app and set up routes
+# 1) Create FastAPI app
 app = FastAPI()
 
-# Initialize FastRTC stream
-rtc_stream = setup_fastrtc_handler()
-rtc_stream.mount(app)
-
-# Create Gradio interface
+# 2) Create Gradio interface
 gradio_interface = create_interface()
+
+# 3) Mount Gradio onto FastAPI at root
 app = gr.mount_gradio_app(app, gradio_interface, path="/")
 
-# Add endpoint to start RTC connection
+# 4) Initialize and mount FastRTC stream on the same app
+rtc_stream = setup_fastrtc_handler()
+rtc_stream.mount(app)
+
+# 5) Expose an endpoint to trigger the client-side RTC handshake
 @app.post("/start-rtc")
-def start_rtc():
+async def start_rtc():
+    await rtc_stream.start_client()
     return {"status": "success"}
 
+# 6) Local dev via uvicorn; HF Spaces will auto-detect 'app' and ignore this
 if __name__ == "__main__":
-    # Run with uvicorn
-    uvicorn.run(app, host="0.0.0.0", port=7860)
+    uvicorn.run(app, host="0.0.0.0", port=7860)