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Payments & fintechMediumSDE-2

Your app uses three payment gateways. One of them has a bad hour with card success rates dropping from 75% to 40% for HDFC cards. How would you route payments to maximise success?

Asked at
CREDRazorpaySwiggy

Think first

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 a payment gateway for merchants (Razorpay) Lesson: Timeouts, retries and circuit breakers

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