choo streams

// Minimal streaming SSR server on plain Node http.
//   node examples/streaming/server.js
// The same ReadableStream plugs into web-standard servers as
// `new Response(app.toStream('/'))` — Readable.fromWeb is just the
// Node http bridge.

import { createServer } from 'node:http'
import { Readable } from 'node:stream'

import createApp from './app.js'

const PORT = process.env.PORT || 8080

createServer((req, res) => {
  res.writeHead(200, { 'content-type': 'text/html; charset=utf-8' })
  res.write('<!doctype html>\n<html lang="en">\n<head><meta charset="utf-8"><title>choo streams</title></head>\n')

  const body = Readable.fromWeb(createApp().toStream('/'))
  body.pipe(res, { end: false })
  body.on('end', () => res.end('\n</html>'))
  body.on('error', (err) => {
    console.error(err)
    res.destroy()
  })
}).listen(PORT, () => {
  console.log(`streaming on http://localhost:${PORT} — watch the slow section arrive`)
})