Highly efficient isomorphic implementation of Base64 string encoding and decoding. With the support of Unicode, and non-blocking execution via WebWorker. This library has 100% tests coverage, including speed tests.

1. 100% tests coverage;
2. Isomorphic, same API for Server and Browser;
3. Blazing fast, see speed tests;
4. Non-blocking browser experience, via WebWorkers;
5. No external dependencies;
6. Can replace default Meteor's base64 package.

meteor add ostrio:base64

import { Base64 } from 'meteor/ostrio:base64';

Native code is disabled by default for Browser. Native code represented as atob, btoa (with extension to support Unicode) in a browser, and Buffer at NodeJS.

Although native code is 10x times faster, its support is enabled only on Server, as natively base64 encoding supports only ASCII symbols in a Browser. To enable native code - pass { useNative: true } in constructor:

import { Base64 } from 'meteor/ostrio:base64';
const nativeB64 = new Base64({ useNative: true });

WebWorker is disabled by default, enable it with passing { allowWebWorker: true } in new Base64() constructor. Once enabled it will be used for all encode/decode calls with the callback. WebWorker is used only if supported by a browser, otherwise, it will fall-back to the main thread. In the real-world application WebWorker, usage will gain you extra FPS, and UI will act more smoothly.

base64Instance.encode(plainString [, callback]);

import { Base64 } from 'meteor/ostrio:base64';
const base64 = new Base64();

base64.encode('My Plain String'); // Returns 'TXkgUGxhaW4gU3RyaW5n'

// Async, non-blocking via WebWorker (if supported) at browser:
base64.encode('My Plain String', (error, b64) => {
  // b64 === 'TXkgUGxhaW4gU3RyaW5n'
});

base64Instance.decode(base64EncodedString [, callback]);

import { Base64 } from 'meteor/ostrio:base64';
const base64 = new Base64();

base64.decode('TXkgUGxhaW4gU3RyaW5n'); // Returns 'My Plain String'

// Async, non-blocking via WebWorker (if supported) at browser:
base64.decode('TXkgUGxhaW4gU3RyaW5n', (error, str) => {
  // str === 'My Plain String'
});

import { Base64 } from 'meteor/ostrio:base64';
new Base64({ allowWebWorker, useNative, supportNonASCII, ejsonCompatible });

• opts.allowWebWorker {Boolean} - Default: false. Use WebWorker in a Browser if available;
• opts.useNative {Boolean} - Default in Browser: false; Default on Server: true. Use native atob, btoa and Buffer.from, when available;
• opts.supportNonASCII {Boolean} - Default: true. Decreases speed, but gives support for whole utf-8 table;
• opts.ejsonCompatible {Boolean} - Default: false. Compatible mode with EJSON "binary" format, .encode() method will result as Uint8Array when ejsonCompatible is true.

import { Base64 } from 'meteor/ostrio:base64';
// Native with WebWorker
const nativeB64 = new Base64({ allowWebWorker: true, useNative: true });

// Native without WebWorker
const mtNativeB64 = new Base64({ allowWebWorker: false, useNative: true });

// Use main thread, no WebWorker
const mtB64 = new Base64({ allowWebWorker: false });

1. Download base64-replacement package and place into meteor-app/packages directory, that's it. Run meteor update to make sure new package is applied;
2. In case of version incompatibility, change base64-replacement version, to the latest available on the mainstream channel;
3. For more info see base64-replacement package

1. Clone this package
2. In Terminal (Console) go to directory where package is cloned
3. Then run:

# Default
meteor test-packages ./

# With custom port
meteor test-packages ./ --port 8888

Tests include synchronous, asynchronous and speed tests for Browser and NodeJS, for cases with/out the Native code and/or WebWorker usage.

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