in-app-notifications-fullstack
In-App Notifications — Fullstack
Discovery
Infer from context, then confirm:
- What triggers notifications? — User actions (someone liked your post), system events (job finished), or both?
- Delivery requirement? — Real-time (SSE/WebSocket already in use) or near-real-time (polling acceptable)?
- Persistence required? — Should notifications survive page reload / be accessible later, or ephemeral?
- Multi-device? — Does marking read on one device need to sync to others?
Architecture Overview
Four distinct responsibilities — keep them separate:
[Backend Event] → [Notification Writer] → [DB] → [Delivery Layer] → [Frontend State]
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