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Internal Engineering Demonstration

Realtime Support Dashboard

Internal engineering demonstration. This is not a client deployment. All scenarios, figures and outcomes are illustrative and created to showcase NorthFlow Studio's technical approach.

Business challenge

  • Support leads needed a live view of ticket state across agents.
  • Polling caused stale data and unnecessary load.
  • Presence ('who's online') was missing.

Objectives

  • Update latency: Sub-200ms ticket status updates across all clients
  • Concurrent users: Support 50 concurrent support agents without degradation
  • Client polling: Zero client-side polling; all updates push-based

Architecture

Realtime dashboard
[ DB change ] │ ▼ [ Realtime channel ] ──▶ [ Client store ] │ │ └── optimistic UI ─────┘ (reconcile on confirm)

Server broadcasts; client reconciles.

subscribe.ts
channel.on('broadcast', { event: 'ticket' }, (e) => {
  store.upsert(e.payload);
});

Technology

ReactSupabase RealtimePostgreSQLTypeScript

Features

  • Live ticket board with real-time status and assignee updates
  • Agent presence indicators with heartbeat and graceful leave handling
  • Optimistic UI updates with server reconciliation on broadcast confirm
  • Conflict resolution: last-write-wins for status, explicit lock for assignments

Implementation

  1. 1Model tickets with status and assignee.
  2. 2Broadcast changes over a realtime channel.
  3. 3Apply optimistic updates, reconcile on confirm.
  4. 4Show agent presence from the channel.

Tradeoffs

Realtime vs polling
Realtime is snappier but needs reconnect handling; polling is simpler to reason about.
Conflict strategy
Last-write-wins for status; explicit lock for assignments.

Performance

  • Channel fan-out rather than per-client DB queries.
  • Backpressure on high-frequency updates.

Lessons learned

  • Optimistic UI must reconcile or users lose trust.
  • Presence needs a heartbeat and graceful leave.

Future roadmap

  • Add offline queue and replay.
  • Add role-scoped visibility.
Demo video placeholder
Screenshot / GitHub placeholder

FAQ

Is this a client system?+

No. It's a technical demonstration of a realtime pattern.

Where can I learn more?+

See our Realtime Systems architecture note.

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