Files
hermes-webui/api
fxd-jason 932694aec6 feat(approval): SSE long-connection for real-time approval notifications (#1350)
Replaces the 1.5s HTTP polling loop with a Server-Sent Events endpoint
at /api/approval/stream that pushes approval events to the browser
instantly. The backend uses a thread-safe subscriber registry
(_approval_sse_subscribers) with bounded queues to prevent memory
leaks from slow clients. Frontend uses EventSource with automatic
fallback to 3s HTTP polling on SSE error.

- Backend: subscribe/unsubscribe/notify lifecycle in api/routes.py
- New route: GET /api/approval/stream?session_id=
- submit_pending() now calls _approval_sse_notify() after queue append
- Frontend: EventSource with onerror -> _startApprovalFallbackPoll()
- 30s keepalive comments, _CLIENT_DISCONNECT_ERRORS handling
- 42 new tests (static analysis + unit + concurrency)

Co-authored-by: jasonjcwu <jasonjcwu@users.noreply.github.com>
2026-04-30 18:31:42 +00:00
..
2026-04-29 19:54:07 -07:00
2026-04-29 19:54:07 -07:00