webfinger.ts

import { Context } from "https://edge.netlify.com/";

const DOMAIN = "macwright.com";

const USERS = new Map([
  [
    `acct:photos@macwright.com`,
    {
      subject: `acct:photos@${DOMAIN}`,
      aliases: [],
      links: [
        {
          rel: "http://webfinger.net/rel/profile-page",
          type: "text/html",
          href: `https://${DOMAIN}/photos`,
        },
        {
          rel: "self",
          type: "application/activity+json",
          href: `https://${DOMAIN}/u/photos`,
        },
      ],
    },
  ],
]);

export default function handler(req: Request, _context: Context) {
  const u = new URL(req.url);
  const resource = u.searchParams.get("resource");

  if (resource && USERS.has(resource)) {
    return new Response(JSON.stringify(USERS.get(resource)), {
      status: 200,
      headers: { "Content-Type": "application/jrd+json" },
    });
  }

  return new Response("", {
    status: 404,
    headers: { "Content-Type": "text/html" },
  });
}