MEDIUM
Design a Notification System
Design a multi-channel notification system supporting push notifications, email, SMS, and in-app messages at scale.
Estimated Time: 45 minutes
#Push Notifications#Message Queue#Rate Limiting#User Preferences
Solution Overview
Use message queue for reliable delivery. Implement user preference management. Rate limit to prevent spam.
Solution Overview
Use message queue for reliable delivery. Implement user preference management. Rate limit to prevent spam.
Hints to Get Started
1
How to handle delivery failures?
2
User notification preferences
3
Batching strategies
Channels
- •Push (APNs, FCM)
- •Email (SES, SendGrid)
- •SMS (Twilio)
- •In-app
- •Webhook
Components
- •Notification Service
- •Template Engine
- •Delivery Workers
- •Analytics