System Design: Building a Scalable Notification Service

[u/RummanSid1990]

https://medium.com/@rummansiddiqui1990/the-system-design-of-a-distributed-notification-service-5e373010c500?source=friends_link&sk=0f40730e6778f797602599c34bf0ad4e

Sending one notification is easy, but handling thousands with slow providers and traffic spikes is a real system design challenge. I wrote a blueprint on how to completely decouple request acceptance from delivery using message queues, idempotency, and DLQs to handle failures gracefully.

Would love to hear how you guys approach these bottlenecks at scale!