“Why Is My API Crying?” — Meet Messaging Queues, the Unsung Heroes of Scalability by Sahil Khan on May 6, 2026 4 views
🚨 A Familiar Problem: The “Just One More Call” Spiral You’ve built a user registration API. It works great. Until your product manager says: “When a user signs up, we should send them an email. Oh, and an SMS. Oh, and a push notification.” You nod, smile, and write this: public void notifyUser(User user) { sendEmail(user); sendSMS(user); sendPush(user); } It works… at first. Then one day, the email service is slow, the SMS times out,…
Demystifying Apache Kafka: The Internal Architecture Driving Massive Event Streaming by Nitin Goyal on April 20, 2026 254 views
Imagine you’ve just built a thriving healthcare platform. Everything is humming along nicely until one fateful afternoon. A doctor requests a critical OTP to log into the portal. Exactly 0.5 seconds prior, your marketing team triumphantly clicked “Send” on a promotional SMS broadcast to 500,000 users. In your monolithic server, a thread loops over the 500,000 users in the database. Think about the sheer weight of that transaction for a moment: fetching thousands of users…