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stringstream
Advanced tools
Readme
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.on('data', str => console.log(`This will be a string: ${str}`))
strs(to, [options])
– creates a transform stream that converts the input into strings in to
encoding (eg, utf8
, hex
, base64
)strs(from, to, [options])
– creates a transform stream converts the input from strings in from
encoding to strings in to
encodingoptions
can be anything compatible with the standard Node.js new stream.Transform([options])
constructor
Back in the day, calling .setEncoding('base64')
on a readable stream didn't
align correctly, which was one of the main reasons I wrote this library –
however this hasn't been the case for a long time, so this library is
now really only useful in scenarios where you don't want to call
.setEncoding()
for whatever reason.
It also handles input and output text encodings:
// Stream from utf8 to hex to base64... Why not, ay.
const hex64Stream = fs.createReadStream('myFile.txt')
.pipe(strs('utf8', 'hex'))
.pipe(strs('hex', 'base64'))
Also deals with base64
output correctly by aligning each emitted data
chunk so that there are no dangling =
characters:
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 is: ' + Buffer.from(base64Str, 'base64'))
})
FAQs
Encode and decode streams into string streams
The npm package stringstream receives a total of 622,501 weekly downloads. As such, stringstream popularity was classified as popular.
We found that stringstream demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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Research
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