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Keep Merchant Addresses, Social Followers, and Wiki Facts Up to Date

System Design · Pinterest · Hard

Design a service that maintains current merchant records. Each merchant has a mailing address, follower totals from one or more social networks, and a founding year plus home country that must be drawn from a wiki entry. Outline the whole pipeline: how fresh data reaches the system, how every update is linked to the correct merchant, how the information is persisted, and how callers receive the latest trustworthy representation. The problem does not fix the freshness goals,…

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