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# stream-connect

Similar to `.pipe` except `.pipe` returns the last stream in a pipeline. stream-connect returns a stream which writes to the first stream in the pipeline and reads from the last.

## Synopsis

```js
const connect = require('stream-connect')
const fs = require('fs')

const connected = connect(stream1, stream2, stream3, stream4)

// data piped into the connected stream is transparently passed through all four internal streams
// then output into process.stdout. Errors in any of the internal streams are emitted
// by the connected stream.
process.stdin
  .pipe(connected)
  .on('error', console.error)
  .pipe(process.stdout)
```

## More detail

Consider this `.pipe` example.

```js
function getExampleStream () {
 ...
 return streamOne.pipe(streamTwo)
}
const stream = getExampleStream()
stream.on('data', function (chunk) {}) // catches data from streamOne via streamTwo
stream.on('error', function (err) {}) // catches errors only from streamTwo
stream.end('test') // is written to streamTwo
```

If you write to the output it will be written to `streamTwo`, whereas you probably wanted to write to the  start of the pipeline and read from the end. Fixed by stream-connect:

```js
const connect = require('stream-connect')
function getExampleStream () {
 ...
 return connect(streamOne, streamTwo)
}
const stream = getExampleStream()
stream.on('data', function (chunk) {}) // catches data from streamOne via streamTwo
stream.on('error', function (err) {}) // catches errors from both streamOne and streamTwo
stream.end('test') // is written to streamOne
```

Any errors emitted in `streamOne` or `streamTwo` are propagated to the output stream.

<a name="module_stream-connect"></a>
## stream-connect
**Example**  
```js
const connect = require('stream-connect')
```
<a name="exp_module_stream-connect--connect"></a>
### connect(...streams) ⇒ <code>[Duplex](https://nodejs.org/api/stream.html#stream_class_stream_duplex)</code> ⏏
Connect streams.

**Kind**: Exported function  

| Param | Type | Description |
| --- | --- | --- |
| ...streams | <code>[Duplex](https://nodejs.org/api/stream.html#stream_class_stream_duplex)</code> | One or more streams to connect. |


* * *

&copy; 2015 Lloyd Brookes \<75pound@gmail.com\>. Documented by [jsdoc-to-markdown](https://github.com/jsdoc2md/jsdoc-to-markdown).