Update app.py

app.py

@@ -45,7 +45,7 @@ async def chat(request: ChatRequest):
             
             response = client.models.generate_content(
                 model="gemini-2.0-flash",
-                contents=chat_history,
+                contents=request.chat_history,
                 config=GenerateContentConfig(
                     system_instruction=[request.system_message]
                 ),