## Frontend Error: "Invalid message ID" when rating a message in ChatWindow

[ackuser]

Description

When attempting to rate a message in the chat interface, the following runtime error occurs in the browser console:

ERROR Invalid message ID at Nt.rateMessage (static/js/bundle.js:126098:13) at async Object.W [as rateMessage] (static/js/bundle.js:126469:7) at async onChange (static/js/vendors-node_modules_mongodb-chatbot-ui_build_ChatWindow_js.chunk.js:63893:42)

Steps to Reproduce

1. Open the chat UI.
2. Attempt to rate a message.
3. Observe the error in the browser console.

Expected Behavior

Rating a message should not throw an error and should work as expected.

Actual Behavior

An "Invalid message ID" error is thrown, and the rating action fails.

Additional Context

• The error appears to originate from the ChatWindow component in the mongodb-chatbot-ui package.
• It seems that rateMessage is being called with an invalid or missing message ID.

Environment

• Browser: Google Chrome 136.0.7103.114
• Node.js: v22.15.0
• OS: macOS 15.4.1 (Darwin 24.4.0, BuildVersion: 24E263, arm64)

Possible Solution

Add validation to ensure a valid message ID is passed to rateMessage, or handle cases where the message ID is missing.