Design Notification System #31
Programming Interview
Medium
2 views
Problem Description
Push notifications for mobile/web. What are the main components?
Official Solution
Ingest events, fan-out (by user segments), queues for retries, worker pool to call APNs/FCM, templates, rate limiting, and monitoring. Store delivery status and handle idempotency using message IDs.
Solutions (0)
No solutions submitted yet. Be the first!
No comments yet. Start the discussion!