als-zip-tools

A Node.js library for efficiently zipping and unzipping files. als-zip-tools provides a simple and powerful way to create zip archives and extract contents from zip files, supporting both basic and advanced use cases.

Installation

npm install als-zip-tools

Usage

Zipping Files

To create a zip file, simply use the zip function.

const { zip } = require('als-zip-tools');

const files = {
  'example.txt': Buffer.from('Example content'),
  'data.json': Buffer.from(JSON.stringify({ key: 'value' }))
};

zip(files).then(buffer => {
  // Do something with the zip buffer
});

Unzipping Files

To extract files from a zip archive, use the unzip function.

const { unzip } = require('als-zip-tools');

unzip(zipBuffer).then(files => {
  // files is an object with file names as keys and Buffers as values
});

Applying Filters in Unzipping

You can also apply a filter function to select specific files during unzipping.

unzip(zipBuffer, (path) => path.endsWith('.txt')).then(files => {
  // Only txt files will be returned
});

API

zip(files, [level])

• files <Object>: Object with file paths as keys and Buffers as values.
• level <Number>: (optional) Compression level, default is 9.

Returns a Promise resolved with a Buffer of the zip file.

unzip(buffer, [filter])

• buffer <Buffer>: Buffer of the zip file.
• filter <Function>: (optional) A function that takes a file path and returns true to include the file.

Returns a Promise resolved with an object containing unzipped files.