Real-Time Event Bridge: FastAPI to Next.js via WebSockets
How cybersec_dashboard uses a WebSocket event bridge to stream runtime status from the async engine to the Next.js operations dashboard.
Why Real-Time Matters Here
Security operations dashboards are less useful when they are stale.
cybersec_dashboard addresses this with a runtime event bridge through:
engine/api/server.pyengine/api/websocket.py- UI hooks under
ui/src/hooks/
This allows engine state and alert flow to stream into the frontend without aggressive polling loops.
Architecture Pattern
The backend normalizes internal events, then fan-outs them through /ws/events. The frontend subscribes and updates focused views like network, threats, memory, and logs.
This keeps transport concerns separate from page-specific rendering logic.
Why This Is Better Than Polling Everything
Polling is easy at first, but expensive under sustained activity. Event streaming:
- reduces redundant API calls
- lowers perceived latency
- keeps UI closer to system reality
It also aligns naturally with the async planner-worker architecture.
Operational Caveats
WebSocket systems need explicit handling for:
- reconnect strategy
- buffer management
- backpressure under burst conditions
The project's split hook design (useWebSocket, event buffering hooks, engine hooks) is a solid foundation for this.
Practical Takeaway
If your backend is already event-oriented, expose that model directly to the UI with a typed WebSocket bridge. It simplifies both frontend state and operator experience.