System Design Classroom

A survival kit to beat APIs interview.

Transaction Isolation only makes sense if you understand Read-and-Write Anomalies.

Nobody told me I would miss my JOINs when I started in microservices.

No matter what the books say, nobody likes making 20 requests to render a page.

Focus on Building Resilient Interactions, Not Just Resilient Services

Don’t share schemas. Share APIs.

What’s an event and what should be inside?

Horizontal Scaling Starts with Load Balancers – But Doesn’t Stop There

I have seen this mistake in production. The Dual Write Problem is not a myth.

Not All Features Are Equal

Happy paths only exists in YouTube tutorials

Queues, Topics, and Their Trade-offs