Building a Scalable News Feed System with Caching and Rate Limiting

Kacper Bąk
5 min readApr 2, 2023

Designing a newsfeed system is a popular interview question, with similar questions being asked for designing Facebook Newsfeeds, Instagram Feeds, Twitter Timelines, and more. In order to design a newsfeed system, the first step is to understand the problem and establish the design scope. This includes figuring out what features need to be supported, such as whether the system is a mobile app, web app, or both, and what important features are necessary.

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