Notification System — System Design Interview Practice
Design a notification system that can send millions of notifications across different channels (email, SMS, push). Work through the requirements, architecture trade-offs, and an interactive design review.
Requirements and concepts to consider
- Send notifications via multiple channels (email, SMS, push, in-app)Requirement
- Support different notification types (marketing, transactional, alerts)Requirement
- User preferences and opt-out mechanismsRequirement
- Template management for notificationsRequirement
- Delivery tracking and analyticsRequirement
- Rate limiting to prevent spamRequirement
- Handle millions of notifications per dayRequirement
- notificationsConcept to explore
- messagingConcept to explore
- queuesConcept to explore
- templatesConcept to explore
- analyticsConcept to explore