Basic Deno static server example using Oak

basic_oak_static_server.ts

// deno run --allow-net --allow-read main.ts

// deno std is not totally stable, look at source to get an idea of how it does it
import { ensureFile } from "https://deno.land/[email protected]/fs/ensure_file.ts";
import { Application, Context, Router, send } from "https://deno.land/x/oak/mod.ts";

// quality of life variables
const cwd = Deno.cwd().replaceAll("\\", "/");
const public_folder = `${cwd}/public`;

const app = new Application();
const router = new Router();

// you might have a couple of convenient redirects
router.get("/", async (ctx) => {
	await send(ctx, "public/index.html");
});

// send "/" traffic to "/public"
app.use(async (ctx, next) => {
	const pathname = ctx.request.url.pathname;
	
	// makes sure path exists and is file
	// if --allow-write flag is enabled this will also make the file requested
	await ensureFile(
		`${public_folder}${pathname}`
	).then(async _ => { // discarded variable is boolean, so this will always be true I think
		// root magic-redirects that traffic for you
		await send(ctx, pathname, { root: public_folder });
	}).catch(async _ => { // discard error cuz I don't need it
		await next();
	});
});

app.use(router.routes());
app.use(router.allowedMethods());

app.addEventListener("listen", () => {
	console.log("Server started");
});

await app.listen({ port: 8080 });