Deno serve over unix socket example with socket file cleanup

deno-hello.ts

const socketPath = "/tmp/mock-server";

// Needed if starting with node --watch
try {
  await Deno.remove(socketPath);
} catch (e) {
  // ignore
}

let server = Deno.serve({ path: socketPath }, (_req) => new Response("Hello, world."));

// Graceful shutdown (not invoked on deno --watch restarts)
Deno.addSignalListener("SIGINT", async () => {
  console.log("Shutting down server...");
  await server.shutdown();
  await Deno.remove(socketPath);
  console.log("Shut down server.");
  Deno.exit(0);
});