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Real-time systemsEasySDE-1

A junior engineer proposes that the order-tracking screen calls GET /order/status every second. You expect 2 million active orders at dinner peak. What is wrong with this, and what would you do instead?

Asked at
BlinkitSwiggyZeptoZomato

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Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.

Go deeper

Design food delivery (Swiggy / Zomato) Lesson: Real-time at scale: WebSockets, SSE and presence

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