Update firebase_config.py

firebase_config.py

@@ -17,13 +17,17 @@ cred = credentials.Certificate({
     "auth_uri": "https://accounts.google.com/o/oauth2/auth",
     "token_uri": "https://oauth2.googleapis.com/token",
     "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
-    "client_x509_cert_url": os.getenv("FIREBASE_CLIENT_X509_CERT_URL")
+    "client_x509_cert_url": os.getenv("FIREBASE_CLIENT_X509_CERT_URL"),
+    "universe_domain": "googleapis.com"
 })
 firebase_admin.initialize_app(cred, {
     'databaseURL': os.getenv("FIREBASE_DATABASE_URL")
 })
 
 def save_chat_message(user_input, krishna_response):
+    """
+    Save a chat message to Firebase Realtime Database.
+    """
     ref = db.reference('chat_history')
     ref.push({
         'user': user_input,
@@ -31,6 +35,9 @@ def save_chat_message(user_input, krishna_response):
     })
 
 def get_chat_history():
+    """
+    Retrieve chat history from Firebase Realtime Database.
+    """
     ref = db.reference('chat_history')
     history = ref.get()
     if history: