Node.js

What is Node.js?

Node.js brings JavaScript to the server and uses an event-driven loop that serves many simultaneous connections from a single process. That model shines wherever there is a lot of waiting and little number crunching, so APIs, streaming or orchestrating many external services. The whole flow is non-blocking, so one server holds noticeably more open requests under load without tying up a separate thread per connection. For us the biggest win comes from the shared language, because we reuse types, tooling and knowledge across frontend and backend.

import { createServer } from "node:http";

const server = createServer((req, res) => {
  res.writeHead(200, { "content-type": "application/json" });
  res.end(JSON.stringify({ ok: true, path: req.url }));
});

server.listen(3000, () => console.log("listening on :3000"));