StringStream/example.js at master · mhart/StringStream

27 lines (20 loc) · 790 Bytes

const fs = require('fs')

const zlib = require('zlib')

const strs = require('stringstream')

const utf8Stream = fs.createReadStream('massiveLogFile.gz')

.pipe(zlib.createGunzip())

.pipe(strs('utf8'))

utf8Stream.pipe(process.stdout)

// Stream from utf8 to hex to base64... Why not, ay.

const hex64Stream = fs.createReadStream('myFile.txt')

.pipe(strs('utf8', 'hex'))

.pipe(strs('hex', 'base64'))

hex64Stream.pipe(process.stdout)

// Deals with base64 correctly by aligning chunks

const stream = fs.createReadStream('myFile.jpg').pipe(strs('base64'))

let base64Str = ''

stream.on('data', data => base64Str += data)

stream.on('end', () => {

console.log('My base64 encoded file is: ' + base64Str)

console.log('Original file size: ' + Buffer.from(base64Str, 'base64').length)

})

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