Update app.py

app.py

@@ -9,7 +9,12 @@ import gradio as gr
 import numpy as np
 import websockets.sync.client
 from dotenv import load_dotenv
-from gradio_webrtc import StreamHandler, WebRTC, get_twilio_turn_credentials
+from gradio_webrtc import StreamHandler, WebRTC
+try:
+    from gradio_webrtc import get_twilio_turn_credentials
+    TWILIO_AVAILABLE = True
+except Exception:
+    TWILIO_AVAILABLE = False
 
 load_dotenv()
 
@@ -192,12 +197,18 @@ Start by introducing yourself and asking how you can help them prepare for their
             api_key = os.getenv('GEMINI_API_KEY')
             if not api_key:
                 print("Error: GEMINI_API_KEY environment variable not set")
+                if self.channel:
+                    self.channel.send("API key not configured. Please set GEMINI_API_KEY environment variable.")
                 return
             self.config = GeminiConfig(api_key)
         
         try:
             if not self.ws:
                 self._initialize_websocket()
+            
+            if not self.ws:
+                print("Failed to establish WebSocket connection")
+                return
 
             _, array = frame
             array = array.squeeze()
@@ -308,11 +319,20 @@ class PreconsultationApp:
 
             with gr.Row():
                 with gr.Column(scale=2):
+                    # Try to get Twilio credentials, fall back to basic configuration
+                    rtc_config = None
+                    try:
+                        if TWILIO_AVAILABLE:
+                            rtc_config = get_twilio_turn_credentials()
+                    except Exception as e:
+                        print(f"Warning: Could not get Twilio TURN credentials: {e}")
+                        print("Using basic WebRTC configuration")
+                    
                     webrtc = WebRTC(
                         label="Voice Consultation",
                         modality="audio",
                         mode="send-receive",
-                        rtc_configuration=get_twilio_turn_credentials(),
+                        rtc_configuration=rtc_config,
                     )
 
                 with gr.Column(scale=1):
@@ -376,14 +396,25 @@ class PreconsultationApp:
                 </div>
             """)
 
+            # Add environment variable requirements notice
+            if not os.getenv('GEMINI_API_KEY'):
+                gr.HTML("""
+                    <div style='text-align: center; margin-top: 10px; padding: 15px; background-color: #fee2e2; border-radius: 8px'>
+                        <p style='margin: 0; color: #dc2626'>
+                            <strong>Setup Required:</strong> Please set the GEMINI_API_KEY environment variable.
+                            <br>Get your key from: <a href="https://ai.google.dev/gemini-api/docs/api-key" target="_blank">Google AI Studio</a>
+                        </p>
+                    </div>
+                """)
+
         return demo
 
     def launch(self):
-        # Check if API key is set
+        # Check if API key is set but don't block launch
         if not os.getenv('GEMINI_API_KEY'):
-            print("Error: Please set the GEMINI_API_KEY environment variable")
+            print("Warning: GEMINI_API_KEY environment variable not set")
             print("You can get a Gemini API key from: https://ai.google.dev/gemini-api/docs/api-key")
-            return
+            print("The interface will launch, but voice functionality won't work without the API key.")
 
         self.demo.launch(
             server_name="0.0.0.0",