⚡ Bolt: Optimize participant removal - #142
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Co-authored-by: Deepaksingh7238 <110552872+Deepaksingh7238@users.noreply.github.com>
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Pull request overview
This PR optimizes LiveKit participant removal by eliminating the pre-check that listed all participants before removing one, relying instead on the API’s “not found” failure behavior to reduce network round-trips.
Changes:
- Replaced
list_participants+ in-process search with a directremove_participantcall inremove_participant_from_room. - Updated logging/handling around the removal operation to treat failures as non-fatal (returns
False).
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| backend/main.py | Removes the extra list_participants call and directly invokes remove_participant to cut API round-trips. |
| .jules/bolt.md | Documents the optimization rationale and guidance to avoid “check-then-act” network patterns. |
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| except Exception as e: | ||
| logger.error(f"Error removing participant: {str(e)}") | ||
| # Expected exception if participant not found (404) | ||
| logger.warning(f"Participant {identity} not found or error removing from room {room_name}: {str(e)}") | ||
| return False |
💡 What
Directly call
remove_participantand catch the resulting exception instead of listing all participants first to check if the participant exists inremove_participant_from_room.🎯 Why
The LiveKit API naturally throws an exception if you attempt to remove a participant that does not exist in the room. The previous code was fetching the entire list of participants just to avoid this exception. This optimization eliminates the "check-then-act" pattern, reducing network overhead.
📊 Impact
Cuts the network round-trips for the
remove_participant_from_roomoperation in half, improving server latency.🔬 Measurement
Verify the change via observing logs when completing a transfer. The success and fallback behaviors remain functionally identical.
PR created automatically by Jules for task 17220854492345843844 started by @Deepaksingh7238