Update app.py

app.py

@@ -26,15 +26,6 @@ class ChatBot:
             "Authorization": f"Bearer {API_KEY}",
             "Content-Type": "application/json"
         }
-    
-    def verify_api_config(self):
-        try:
-            response = requests.options(f"{BASE_URL}/v1/chat/completions", headers=self.headers, timeout=5)
-            if response.status_code >= 400:
-                logger.error(f"API configuration may be incorrect: {response.status_code}")
-                logger.error(f"API response: {response.text[:200]}")
-        except Exception as e:
-            logger.error(f"Failed to connect to API: {str(e)}")
 
 def format_message(role, content):
     return {"role": role, "content": content}
@@ -85,7 +76,7 @@ def chat_stream(message, history):
                             break
                             
                         chunk = json.loads(line)
-                        if chunk and "choices" in chunk:
+                        if chunk and "choices" in chunk and len(chunk["choices"]) > 0:
                             delta = chunk["choices"][0]["delta"]
                             if "content" in delta:
                                 content = delta["content"]
@@ -93,6 +84,8 @@ def chat_stream(message, history):
                                 history.append((message, partial_message))
                                 yield history
                                 history.pop()
+                        else:
+                            logger.warning("Received empty or malformed choice from API.")
                 except json.JSONDecodeError as e:
                     logger.error(f"JSON parsing error: {e}")
                     continue