example.jsconst express = require('express');
const fs = require('fs');
const path = require('path');
const app = express();
app.get('/', function(req, res) {
res.sendFile(path.join(__dirname + '/index.html'));
})
app.get('/audio', function(req, res) {
const path = 'sample.mp3';
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': 'audio/mpeg',
};
res.writeHead(206, head);
file.pipe(res);
} else {
const head = {
'Content-Length': fileSize,
'Content-Type': 'audio/mpeg',
};
res.writeHead(200, head);
fs.createReadStream(path).pipe(res);
}
});
app.listen(8000, function () {
console.log('Listening on port 8000!');
});
index.html<html>
<head>
<title>Example</title>
</head>
<body>
<audio id="audioPlayer" controls>
<source src="http://localhost:8000/audio" type="audio/mpeg">
</audio>
</body>
</html>