Update app.py

app.py

@@ -1,4 +1,19 @@
 import streamlit as st
 from streamlit_option_menu import option_menu
+import os
+from pymongo.mongo_client import MongoClient
+from pymongo.server_api import ServerApi
+
+uri = os.environ["MONGO_CONNECTION_STRING"]
+
+# Create a new client and connect to the server
+client = MongoClient(uri, server_api=ServerApi('1'))
+
+# Send a ping to confirm a successful connection
+try:
+    client.admin.command('ping')
+    print("Pinged your deployment. You successfully connected to MongoDB!")
+except Exception as e:
+    print(e)
 
 option_menu(None, ["Home", "About Us", "Logout"], orientation="horizontal")