app.get("/", (_, res) => { res.writeHead(200, { "Content-Type": "text/html; charset=utf-8", }); const readableStream = new Stream.Readable({ read() {}, }); readableStream.pipe(res); readableStream.push("<!DOCTYPE html><html><body>”); setTimeout(() => readableStream.push("Oi"), 1000); setTimeout(() => readableStream.push("Oi2"), 2000); setTimeout(() => { readableStream.push("Tchau"); readableStream.push("</body></html>"); res.end(); }, 3000); });