Middleware

epresso is a build-time, static generator — there is no per-request middleware (onRequest) or server runtime to intercept requests.

The analog is the build-time Plugin API: a project or plugin module can hook the build lifecycle (on_setup, before_load, after_load, before_build, after_build, on_assets). See [Plugins](plugins.md.

For anything that must happen per-request (auth, redirects by header, edge logic), serve the generated dist/ behind your own middleware/proxy — epresso just produces the static files.