Stream video using node.js

index.js

"use strict";
// Require the framework and instantiate it
import fastify from "fastify";
import fs from "node:fs";
import { join } from "node:path";
import { Readable } from "node:stream";

const app = fastify({ logger: true });

async function* streamFile() {
  const stream = fs.createReadStream(join(__dirname, "..", "video-movie.mp4"));
  for await (const chunk of stream) {
    yield chunk;
  }
}

// Declare a route
app.get("/", async (_, reply) => {
  reply.type("video/mp4");
  return reply.send(Readable.from(streamFile()));
});

// Run the server!
const start = async () => {
  try {
    await app.listen({ port: 3000 });
  } catch (err) {
    app.log.error(err);
    process.exit(1);
  }
};
start();