Images are still the single heaviest asset on most web pages, and one unoptimized hero shot can wreck your Largest Contentful Paint (LCP) before a line of your JavaScript even runs. The catch is that manual optimization — dragging files through a desktop tool before every deploy — simply does not scale. The moment your users start uploading their own avatars, products, or listings, compression has to happen automatically, on the server, in real time.
That is exactly what an image optimization API is for. In this guide we wire one into a real backend using the
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