server.js

const { createServer } = require("http");
const { parse } = require("url");
const next = require("next");
const atom = require("./lib/atom");
const path = require("path");
const gpgKey = require("fs").readFileSync(path.join(__dirname, "gpg.asc"));

const dev = process.env.NODE_ENV !== "production";
const app = next({ dev, dir: __dirname });
const handle = app.getRequestHandler();

app.prepare().then(() => {
  const srv = createServer((req, res) => {
    const { pathname } = parse(req.url);

    if (/^\/slackin\/?$/.test(pathname)) {
      res.writeHead(302, {
        Location: "https://github.com/rauchg/slackin"
      });
      res.end();
      return;
    }

    if (/^\/\d{4}\/.+\/$/.test(pathname)) {
      // wordpress used to link to posts with a
      // trailing slash, that would 404 in next
      // so we redirect them to without
      res.writeHead(301, {
        Location: pathname.substr(0, pathname.length - 1)
      });
      res.end();
      return;
    }

    if ("/gpg.asc" === pathname) {
      const body = gpgKey;
      res.setHeader("Content-Type", "text/plain");
      res.setHeader("Content-Length", Buffer.byteLength(body));
      res.end(body);
      return;
    }

    if (/^\/atom\/?$/.test(pathname)) {
      const body = atom();
      res.setHeader("Content-Type", "text/xml");
      res.setHeader("Content-Length", Buffer.byteLength(body));
      res.end(body);
      return;
    }

    handle(req, res);
  });

  srv.listen(3000, err => {
    if (err) throw err;
    console.log("> Ready on http://localhost:3000");
  });

  process.on("SIGTERM", () => {
    console.log("> Shutting down");
    srv.close();
  });
});