As I’m typing this, Re:Invent 2024 is only weeks away. In anticipation of https://aws-news.com‘s busiest period of the year, I redesigned the API access patterns to support very effective caching. This resulted in significantly reduced backend load and a much faster frontend. This article focuses on CDN caching – storing HTTP responses on points-of-presence (POPs) near the user. When you read ‘caching’ in this article, we’re talking about caching in CloudFront, unless stated otherwise. Backgroun...