npm install archiver
npm install -D @types/archiver

import archiver from 'archiver';
import { createWriteStream } from 'fs';

const output = createWriteStream('project-export.zip');
const archive = archiver('zip', { zlib: { level: 9 } });

output.on('close', () => console.log(`Archive created: ${archive.pointer()} bytes`));
archive.on('error', (err) => { throw err; });

archive.pipe(output);

// Add individual files
archive.file('README.md', { name: 'README.md' });

// Add entire directory
archive.directory('src/', 'src');

// Add buffer as file
archive.append(Buffer.from('{"version": 1}'), { name: 'metadata.json' });

await archive.finalize();