Redirect www to apex

[RickCogley]

Hello - given an entry point like the below index.ts and hosting on deno deploy, how could I redirect www to the apex, for instance www.mydomain.com to mydomain.com? Is it possible with a single entrypoint? Currently I have the apex only setup, and DNS A and AAAA records set up just for that, not yet www.

I assume I'd need to add A and AAAA records in my dns for the www subdomain (correct?) but, can someone say how I need to change my index.ts to do the redirect to the apex, if that's possible with oak?

Another option is simply to make another deno deploy project, using say index2.ts, and pointing at a different index.html file, which does the redirect on load.

Appreciate any advice!

import { Application } from "https://deno.land/x/oak/mod.ts";

const app = new Application();

// Logger
app.use(async (ctx, next) => {
  await next();
  const rt = ctx.response.headers.get("X-Response-Time");
  console.log(`${ctx.request.method} ${ctx.request.url} - ${rt}`);
});

// Timing
app.use(async (ctx, next) => {
  const start = Date.now();
  await next();
  const ms = Date.now() - start;
  ctx.response.headers.set("X-Response-Time", `${ms}ms`);
  ctx.response.headers.set("X-Custom-Header", "Rawr eSolia");
  ctx.response.headers.set("Strict-Transport-Security", "max-age=31536000; includeSubDomains; preload");
  ctx.response.headers.set("X-Frame-Options", "SAMEORIGIN");
  ctx.response.headers.set("Referrer-Policy", "strict-origin");
  ctx.response.headers.set("X-Content-Type-Options", "nosniff");
  ctx.response.headers.set("X-Powered-By", "Blood Sweat Tears");
  ctx.response.headers.set("Permissions-Policy", "accelerometer=(), ambient-light-sensor=*, autoplay=(self), battery=(self), camera=(), cross-origin-isolated=*, fullscreen=*, geolocation=(self), gyroscope=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), usb=()");
});

app.use(async (ctx) => {
  try {
    await ctx.send({
      root: `${Deno.cwd()}/html`,
      index: "index.html",
    });
  } catch {
    ctx.response.status = 404;
    ctx.response.body = "404 File not found";
  }
});

await app.listen({ port: 8000 });