https://github.com/binocarlos/cascade-stream

A duplex stream that can lazily create child streams from a chunk and merge all outputs into one
https://github.com/binocarlos/cascade-stream

Last synced: 10 days ago
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A duplex stream that can lazily create child streams from a chunk and merge all outputs into one

• Host: GitHub
• URL: https://github.com/binocarlos/cascade-stream
• Owner: binocarlos
• License: mit
• Created: 2014-04-21T11:24:51.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2015-02-26T10:17:18.000Z (over 9 years ago)
• Last Synced: 2024-08-10T20:32:12.219Z (3 months ago)
• Language: JavaScript
• Size: 172 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
cascade-stream

==============

[![NPM](https://nodei.co/npm/cascade-stream.png?global=true)](https://nodei.co/npm/cascade-stream/)

[![Travis](http://img.shields.io/travis/binocarlos/cascade-stream.svg?style=flat)](https://travis-ci.org/binocarlos/cascade-stream)

A duplex stream that can lazily create child streams from a chunk and merge all outputs into one

## example

```js

var from = require('from2-array')

var through = require('through2')

var cascade = require('cascade-stream')

// create a stream for a single letter

function createLetterStream(letter){

	return from.obj([1,2,3].map(function(num){

		return letter + ':' + num

	}))

}

var source = from.obj(['a', 'b', 'c'])

var pipeline = cascade(function(chunk, add, next){

	add(createLetterStream(chunk))

	next()

})

var sink = through.obj(function(chunk, enc, cb){

	console.log(chunk);

	cb()

})

source.pipe(pipeline).pipe(sink)

/*

	a1

	a2

	a3

	b1

	b2

	b3

	c1

	c2

	c3

	

*/

```

## license

MIT