Update app.py

app.py

@@ -192,7 +192,7 @@ class RAGVoiceHandler(AsyncStreamHandler):
 # 4. Voice Streaming Setup & FastAPI Endpoints
 # ====================================================
 
-# Supply a dummy (but valid) RTC configuration to satisfy fastrtc.
+# Supply a dummy (but valid) RTC configuration with a TURN server entry
 rtc_config = {
     "iceServers": [
         {"urls": "stun:stun.l.google.com:19302"},
@@ -228,6 +228,15 @@ async def input_hook(body: InputData):
 async def webrtc_offer(offer: dict):
     return await stream.handle_offer(offer)
 
+# Added /chat endpoint for text-based queries (fallback)
+@app.post("/chat")
+async def chat_endpoint(payload: dict):
+    question = payload.get("question", "")
+    if not question:
+        return {"error": "No question provided"}
+    answer = generate_answer(question)
+    return {"answer": answer}
+
 @app.get("/")
 async def index():
     index_path = current_dir / "index.html"