Imagine your API was working perfectly. Normally: Request → API → Response Response Time: 2 seconds Everything looks fine. 😎 But suddenly, users start complai…
Imagine you have built a simple Spring Boot API. It works perfectly. You test it with 10 users: Request → API → Database → Response Everything looks great. 😎 …
Ever wondered how Google searches billions of web pages and returns relevant results in milliseconds? Let's understand the system design behind crawling, index…
Have you ever thought about what actually happens when you send a WhatsApp message? You type: "Hey, where are you?" You press Send . And within seconds, the ot…
For a normal application, a like may look like a very simple operation: User clicks Like ↓ API ↓ Databa…
Many developers think scaling an API is simply about buying a bigger server. More traffic? Just increase the server size. That approach may work when you…
