v1.2.1Published 7 years ago

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Isomorphic Base64 implementation

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.


meteor add ostrio:base64

ES6 Import

1import { Base64 } from 'meteor/ostrio:base64';

Native code support

Native code is disabled by default for both NodeJS and browser. Native code represented as atob, btoa (with extension to support Unicode) at a browser, and Buffer at NodeJS. Both versions of new Buffer via Constructor and Buffer.from is supported for node >= 7.*.

Native code support is disabled - as tests indicate up to 3x slower execution than JS-implementation. To run tests - clone this repository and run meteor test-packages ./. To enable native code - use constructor in next form:

1// Note - first "b" (lowercase)
2import { base64 } from 'meteor/ostrio:base64';
3const nativeB64 = new base64(true, true);

Non-blocking via WebWorker

WebWorker is enabled by default, 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.


Base64.encode(plainString [, callback])

1Base64.encode('My Plain String'); // Returns 'TXkgUGxhaW4gU3RyaW5n'
3// Async, non-blocking via WebWorker (if supported) at browser:
4Base64.encode('My Plain String', (error, b64) => {
5  // b64 === 'TXkgUGxhaW4gU3RyaW5n'

Base64.decode(base64EncodedString [, callback])

1Base64.decode('TXkgUGxhaW4gU3RyaW5n'); // Returns 'My Plain String'
3// Async, non-blocking via WebWorker (if supported) at browser:
4Base64.decode('TXkgUGxhaW4gU3RyaW5n', (error, str) => {
5  // str === 'My Plain String'

Constructor new base64([allowWebWorker, useNative])

1// Note - first "b" (lowercase)
2import { base64 } from 'meteor/ostrio:base64';
3// Native with WebWorker
4const nativeB64 = new base64(true, true);
6// Native without WebWorker
7const mtNativeB64 = new base64(false, true);
9// Use main thread, no WebWorker
10const mtB64 = new base64(false);

100% Tests coverage

To run built-in tests clone this repository and run:

meteor test-packages ./

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