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Messaging & event-driven designMediumSDE-2
A bug in your loyalty-points consumer gave wrong points for the last 3 days. The bug is fixed. How do you reprocess the events safely?
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CREDFlipkartPaytmSwiggy
Think first
Answer out loud as you would in the room — clarify, give numbers, name the trade-off — then compare with the model answer.
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