Files
familienarchiv/frontend/src/lib/notification
Marcel a1b89670c0 docs(legibility): add 18 per-domain README.md files (DOC-6)
Backend (9): document, person, tag, user, geschichte, notification,
ocr, audit, dashboard.
Frontend (8): document, person, tag, user, geschichte, notification,
ocr, shared.
OCR service (1): ocr-service/README.md.

Each README covers: what the domain owns, explicit non-ownership,
public surface (verified by grep against the codebase), internal
layout, and cross-domain dependencies.

Closes #400
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-06 07:36:38 +02:00
..

notification (frontend)

Bell-icon dropdown and real-time SSE connection for in-app notifications.

What this domain owns

Components: NotificationBell.svelte, NotificationDropdown.svelte. Utilities: notifications.svelte.ts (Svelte 5 reactive store), notifications.ts (API helpers).

What this domain does NOT own

  • SSE infrastructure — the backend's SseEmitterRegistry manages the server-side emitter. The frontend establishes one EventSource connection per session. Connection management lives in notifications.svelte.ts.
  • Notification content rendering — notification payloads contain a contextUrl; the frontend navigates there on click.

Key design: SSE connection

The SSE path is backend → browser directly (not proxied through SvelteKit SSR). The EventSource connects to /api/notifications/stream. On receive, the reactive store updates the unread count and the bell dropdown in real time.

Backend SseEmitterRegistry → /api/notifications/stream → EventSource in browser

Key components

Component Used in Notes
NotificationBell.svelte global nav (+layout.svelte) Bell icon with unread badge; opens NotificationDropdown
NotificationDropdown.svelte global nav Scrollable list of recent notifications with mark-read

Cross-domain imports

  • shared/primitives/ — icon, button primitives only

Backend counterpart

backend/src/main/java/org/raddatz/familienarchiv/notification/README.md