(20241224) Validation error catching.

controllers_v2/finstitutions/trading/zerodha_kite.py

@@ -65,6 +65,9 @@ import httpx
 # To work with Zerodha's Kite platform:
 from kiteconnect import KiteConnect
 
+# To handle exceptions:
+from pydantic import ValidationError
+
 
 #   *****************************************************************************************************************
 #  *****                                                                                                          ****
@@ -265,11 +268,11 @@ class ZerodhaKiteTradingController(TradingController):
         # Start by assuming failure:
         symbol_list = TradingSymbolListBrokerResponse()
 
+        try:
+
             # Fit the token into the model:
             zerodha_token = ZerodhaKiteAuthTokens(**auth_token.token)
 
-        try:
-
             # Now create an instance of the Kite:
             kite = KiteConnect(api_key = auth_token.auth["apiKey"])
             kite.set_access_token(zerodha_token.accessToken)
@@ -285,9 +288,11 @@ class ZerodhaKiteTradingController(TradingController):
 
         # In case something goes wrong:
         except Exception as exception:
-            symbol_list.exception = exception
-            symbol_list.message = str(exception)
             symbol_list.data = None
+            symbol_list.exception = exception
+            if isinstance(exception, ValidationError):
+                symbol_list.message = "Token error. Please log in to your Zerodha (Kite) account again."
+            else: symbol_list.message = str(exception)
 
         # Done here:
         return symbol_list