Bot突然停止响应且无日志记录问题求助

Hey Brian, sorry to hear your Google Chat Bot stopped working unexpectedly—let’s break down some targeted troubleshooting steps to get it back up:

• Validate Your Webhook Endpoint
  Since you mentioned deploying a web app, start by confirming your endpoint is publicly reachable. Grab a tool like curl or Postman and send a mock Chat event payload to your endpoint—you should get a 200 OK response. If it’s unreachable, blocked by a firewall, or returns errors, Google Chat can’t send events to it. Also, double-check your web app’s deployment settings: make sure it allows anyone, even anonymous access—Chat’s requests come from unauthenticated Google servers, so restricting access here will completely block event delivery.

• Check Execution Permissions
  If your bot runs on Cloud Functions or App Engine, verify the service account linked to your resource has the right permissions. For Cloud Functions, head to IAM & Admin > IAM in your Cloud Console, and ensure the chat-api-client@system.gserviceaccount.com principal has the Cloud Functions Invoker role. This is required for Google Chat to trigger your function. For App Engine, confirm the app’s service account has permissions to run the necessary code without restrictions.

• Reset Bot Configuration
  Sometimes configurations get out of sync even without code changes. Try resetting your bot:

  1. Navigate to the Google Chat API page in Cloud Console
  2. Delete your existing bot configuration
  3. Recreate it using the same endpoint and settings
  4. Republish the bot to your account
     This refreshes the connection between Google Chat and your service, which often fixes silent event delivery issues.

• Fix Logging Visibility
  The fact that Stackdriver (now Cloud Logging) shows no logs is a red flag. First, make sure your code logs events immediately when handlers fire—add lines like console.log("onMessage triggered with payload:", payload) at the start of onMessage, onAddToSpace, etc. Then, check Cloud Logging filters: ensure you’re viewing the correct project, and try searching with the resource type matching your deployment (e.g., cloud_function or gae_app). If your web app is on another platform, confirm logging is set up to send data to Cloud Logging.

• Rule Out Service Outages
  While rare, Google Chat might have an outage affecting bot events. Check the Google Workspace Status Dashboard to see if there are ongoing issues with Chat bot services.

内容的提问来源于stack exchange，提问作者Brian