pipe streams with centralized error handling
npm install multipipeA better Stream#pipe that creates duplex streams and lets you handle errors in one place. With promise support!
 
``js
const pipe = require('multipipe')
// pipe streams
const stream = pipe(streamA, streamB, streamC)
// centralized error handling
stream.on('error', fn)
// creates a new stream
source.pipe(stream).pipe(dest)
// optional callback on finish or error
pipe(streamA, streamB, streamC, err => {
// ...
})
// pass options
pipe(streamA, streamB, streamC, {
objectMode: false
})
// await finish
await pipe(streamA, streamB, streamC)
`
Write to the pipe and you'll really write to the first stream, read from the pipe and you'll read from the last stream.
`js
const stream = pipe(a, b, c)
source
.pipe(stream)
.pipe(destination)
`
In this example the flow of data is:
* source ->
* a ->
* b ->
* c ->
* destination
Each pipe forwards the errors the streams it wraps emit, so you have one central place to handle errors:
`js
const stream = pipe(a, b, c)
stream.on('error', err => {
// called three times
})
a.emit('error', new Error)
b.emit('error', new Error)
c.emit('error', new Error)
`
Pass a variable number of streams and each will be piped to the next one.
A stream will be returned that wraps passed in streams in a way that errors will be forwarded and you can write to and/or read from it.
The returned stream is also a Promise that will resolve on finish and reject on error.
Pass an object as the second to last or last argument to pass as options to the underlying stream constructors.
Pass a function as last argument to be called on error or finish of the last stream.
You can also pass an Array of streams if that is more convenient.
`bash``
$ npm install multipipe
The MIT License (MIT)
Copyright (c) 2014 Segment.io Inc. <friends@segment.io>
Copyright (c) 2014 Julian Gruber <julian@juliangruber.com>
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in the Software without restriction, including without limitation the rights
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