Base64 streaming encoder and decoder [![Build Status](https://secure.travis-ci.org/hapijs/b64.png)](http://travis-ci.org/hapijs/b64) Lead Maintainer - [Wyatt Preul](https://github.com/geek) ## Installation ```sh npm install b64 --save ``` ## API ### encode(buffer) Base64 encode the buffer and return it as a new Buffer. ### decode(buffer) Base64 decode the buffer and return the result as a new buffer. ### Encoder Transform stream that base64 encodes each chunk of the stream. Example: ```js 'use strict'; const Fs = require('fs'); const B64 = require('b64'); const stream = Fs.createReadStream(`${__dirname}/package.json`); const encoder = new B64.Encoder(); stream.pipe(encoder).pipe(process.stdout); ``` ### Decoder Transform stream that base64 decodes each chunk of the stream. Example: ```js 'use strict'; const Fs = require('fs'); const B64 = require('b64'); const stream = Fs.createReadStream(`${__dirname}/encodedfile.b64`); const decoder = new B64.Decoder(); stream.pipe(decoder).pipe(process.stdout); ``` ### base64urlEncode(value) Encodes value of string or buffer type in Base64 or URL encoding, function will assert input value is correct. ### base64urlDecode(value) Decodes string into Base64 or URL encoding, function throws an error on invalid input and returns a string or buffer depending on encoding provided. Default encoding is binary.