Netlify Edge Functions

Modern syntax (reach for this)

Export a default handler plus a config object. Import Config/Context types from @netlify/edge-functions; Request/Response/URL are global.

import type { Config, Context } from "@netlify/edge-functions";

export default async (request: Request, context: Context) => {
  return new Response("Hello world");
};

export const config: Config = {
  path: "/test",
};

Do not hand-write an edge function when your framework's adapter already generates middleware for the job — duplicating it causes conflicts. Check the framework adapter/reference first.