One post tagged with "cloudflare-workers"

I wanted the homepage stats bar to show a current online users number, next to the build-time stats (posts, tags, days since last post). It sounds like a one-liner, but a static site fundamentally cannot call the GA4 Realtime API directly — the API needs a service-account private key, and anything you ship to the browser is public. This post is the whole path I took: the build-time-vs-runtime split, why a proxy is mandatory, the Cloudflare Worker that signs its own Google token, wiring the frontend, and the three traps I fell into along the way.