server.js

const fs = require('fs');
const path = require('path')
const express = require('express')
const app = express()

app.use('/', express.static(path.join(__dirname, 'public')))


// app.get('/video', function(req, res) {
  
//   const path = 'assets/sample.mp4'

//   const stat = fs.statSync(path)
//   const fileSize = stat.size
//   const range = req.headers.range
  
//   if (range) {
//     const parts = range.replace(/bytes=/, "").split("-")
//     const start = parseInt(parts[0], 10)
//     const end = parts[1] 
//       ? parseInt(parts[1], 10)
//       : fileSize-1
//     const chunksize = (end-start)+1
//     const file = fs.createReadStream(path, {start, end})
//     const head = {
//       'Content-Range': `bytes ${start}-${end}/${fileSize}`,
//       'Accept-Ranges': 'bytes',
//       'Content-Length': chunksize,
//       'Content-Type': 'video/mp4',
//     }
//     res.writeHead(206, head);
//     file.pipe(res);

//   } else {

//     const head = {
//       'Content-Length': fileSize,
//       'Content-Type': 'video/mp4',
//     }
//     res.writeHead(200, head)
//     fs.createReadStream(path).pipe(res)

//   }
// });

app.listen(3000, () => {
  console.log('listening on port 3000')
})