bro-fs

Promise-based wrapper over HTML5 Filesystem API allowing to work with sandboxed filesystem in browser.
API is similar to Node.js fs module with some extra sugar. Currently it is supported only by Chrome.

Tested in:

Demos

• Live Demo
• jsFiddle

API

• API Documentaion

Install

• install from npm:

  npm install bro-fs

• include directly from CDN via <script> tag:

  <script src="https://unpkg.com/bro-fs"></script>

• download manually the latest release

Usage

With async/await:

const fs = require('bro-fs');

(async function () {
  await fs.init({type: window.TEMPORARY, bytes: 5 * 1024 * 1024});
  await fs.mkdir('dir');
  await fs.writeFile('dir/file.txt', 'hello world');
  const content = await fs.readFile('dir/file.txt');
  console.log(content); // => "hello world"
})();

or with .then():

fs.init({type: window.TEMPORARY, bytes: 5 * 1024 * 1024})
  .then(() => fs.mkdir('dir'))
  .then(() => fs.writeFile('dir/file.txt', 'hello world'))
  .then(() => fs.readFile('dir/file.txt'))
  .then(content => console.log(content)); // => "hello world"

See more usage examples in test directory.

W3C Specs

Current:

• https://dev.w3.org/2009/dap/file-system/file-dir-sys.html (Chrome)
• https://wicg.github.io/entries-api (Firefox and Edge)

Coming (draft):

• https://w3c.github.io/filesystem-api

Discussion:

• https://github.com/w3c/filesystem-api/issues/8

Similar packages

• filer.js - unix-like commands, callbacks
• html5-fs - looks obsolete, callbacks
• chromestore.js - looks obsolete, callbacks
• BrowserFS - many backends, callbacks
• fs-web - store files in IndexedDB, not html5 filesystem
• web-fs - abandoned
• browserify-fs - uses leveldb under hood, callbacks
• fs-browserify - abandoned
• dom-fs - abandoned

License

MIT @ Vitaliy Potapov