Topic
Email, in-app notifications, mentions, user preferences, templates, retries, and delivery observability.
Practice items tagged with Notification Systems.
Designs email, in-app, and push-style notification delivery with preferences, retries, and idempotent side effects.
Designs comments with permissions, threading, mentions, notifications, editing history, and moderation concerns.
Designs user preferences, channel rules, unsubscribe behavior, digest generation, and delivery suppression.
Designs live updates with polling, server-sent events, or WebSockets while preserving authorization, ordering, scale, and fallback behavior.
Designs saved filters, scheduled matching, alert delivery, and freshness trade-offs for search-driven product workflows.
Designs an invitation workflow with token security, expiry, membership creation, email delivery, and replay-safe onboarding.