Feature Request: Ability to Enable Debug/Verbose Logging in microsoft-teams-library-js

[jaideep-maersk]

Hi team,

While working with the microsoft-teams-library-js package, we’ve found it difficult to diagnose issues due to the lack of visible logging or debug output.

Question / Request:
Is there currently a way to enable logging (debug, verbose, or diagnostic) for this library? If not, could you consider adding an option or recommended approach for capturing internal logs to help with troubleshooting?

Having configurable logging would greatly improve our ability to understand what’s happening under the hood, especially when dealing with initialization issues or unexpected behavior.

Thanks!

[microsoft-github-policy-service]

Hi @jaideep-maersk! Thank you for bringing this issue to our attention. We will investigate and if we require further information we will reach out in one business day. Please use this link to escalate if you don't get replies.

Best regards, Teams Platform

[Nivedipa-MSFT]

@jaideep-maersk - Thanks for bringing this issue to our attention.
Currently, there is no built-in logging or debug mode available in the @microsoft/teams-js library.

Here’s a suggested approach for your team:

1. Enable DevTools in the Teams client (Windows/macOS) and reproduce the issue to capture:
   Console output (look for teamsJs:* lines)
   Network (HAR) data for iframe activity
   Screenshots or timestamps for reference
   Ref Doc: https://learn.microsoft.com/en-us/microsoftteams/platform/tabs/how-to/developer-tools

2. Collect Teams support logs right after reproducing the issue and attach weblogs to your internal report.
   Ref Doc: https://learn.microsoft.com/en-us/microsoftteams/log-files

3. Add instrumentation to your app around app.initialize(), getContext(), authentication.authenticate(), and getAuthToken() with structured logs to help correlate with TeamsJS console output.

You are correct that configurable logging (such as debug or verbose levels and a hookable logger) would simplify troubleshooting. Although teams‑js doesn’t currently offer a logging switch, Microsoft is working to add observability features in related SDKs. To help ensure your feedback is considered for future updates, please submit it through the Teams Feedback Portal.

Please let us know if you have any further query here.