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by harlow 3932 days ago
Hi manigandham, Harlow here (author of the post). You are absolutely correct; serving 2M API requests from a local data store wouldn't be considered "at-scale" these days.

In hindsight I should have added more information about where the actual work is being done -- I definitely missed the mark on parts of this post.

The lions-share of our work is done in an async fashion. 2M API requests (lookups) turns into 40M+ background jobs. These jobs fetch, aggregate, and scrub data from a number of downstream providers.