const express = require('express'); const JSZip = require('jszip'); const fs = require('fs');

app.get('/generate-pack', (req, res) => { const zip = new JSZip(); // Add files to the zip zip.file('file1.txt', 'content1'); zip.file('file2.txt', 'content2');

document.getElementById('downloadPack').addEventListener('click', function() { fetch('/generate-pack') .then(response => response.blob()) .then(blob => { const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href = url; a.download = 'legendario-pack.zip'; a.click(); }); });

const app = express();

zip.generateAsync({ type: 'nodebuffer' }) .then(function(content) { res.set("Content-Disposition", "attachment; filename=legendario-pack.zip"); res.set("Content-Type", "application/zip"); res.send(content); }); }); This example provides a basic structure. The actual implementation would depend on the technology stack, specific requirements, and existing infrastructure. Ensure to follow best practices in security, especially when handling user data and transactions.