README
duplex-transform
Streams2 syntactic sugar for making wrapping + piping duplex streams with transforms (like encoding/decoding).
npm install duplex-transform
Use Case
Say you have a duplex stream, and it's super cool. Except that it speaks some protocol you don't particularly like, so you want to transform it to something else. It's a bit annoying to have to make three streams and pipe them every time. This tiny module makes this a tiny bit nicer.
This module uses + plays well with through2 and common transform stream patterns.
Example
var dgramStream = require('dgram-stream')
var duplexTransform = require('duplex-transform')
var ugly = dgramStream('udp4')
ugly.bind(1234)
function encode(data, enc, next) {
this.push({
to: { port: 1234 }, // talking to ourselves :S
payload: data,
})
next()
}
function decode(data, enc, next) {
this.push(data.payload)
next()
}
var fancy = duplexTransform.obj(encode, ugly, decode)
process.stdin.pipe(fancy).pipe(process.stdout)