server.js

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

const app = express();
const PORT = process.env.PORT || 7860;

app.use(express.static('public'));
app.use('/music', express.static('music'));

app.get('/tracks', (req, res) => {
    fs.readdir('music', (err, files) => {
        if (err) {
            return res.sendStatus(500);
        }
        res.json(files.filter(file => file.endsWith('.mp3')));
    });
});

app.listen(PORT, () => console.log(`Server running on port ${PORT}`));