flow-chunkify

Transform stream factory to chunk streamed data values.

Installation

$ npm install flow-chunkify

API

To create a stream factory,

var chunkStream = require( 'flow-chunkify' );
 
// Create a new factory:
var cStream = chunkStream();

cStream.numValues( [numValues] )

This method is a setter/getter. If no numValues is provided, returns the numValues to chunk; default is 1. To set the numValues,

cStream.numValues( 10 );

cStream.stream()

To create a new chunkify stream,

var stream = cStream.stream();

Usage

Methods are chainable.

chunkStream()
    .numValues( 10 )
    .stream()
    .pipe( /* writable stream */ );

Examples

var eventStream = require( 'event-stream' ),
    cStream = require( 'flow-chunkify' );
 
// Create some data...
var data = new Array( 1000 );
for ( var i = 0; i < data.length; i++ ) {
    data[ i ] = Math.random();
}
 
// Create a readable stream:
var readStream = eventStream.readArray( data );
 
// Create a new chunkify stream:
var stream = cStream()
    .numValues( 10 )
    .stream();
 
// Pipe the data:
readStream.pipe( stream )
    .pipe( eventStream.map( function( d, clbk ){
        clbk( null, JSON.stringify( d )+'\n' );
    }))
    .pipe( process.stdout );

To run the example code from the top-level application directory,

$ node ./examples/index.js

Tests

Unit tests use the Mocha test framework with Chai assertions.

Assuming you have globally installed Mocha, execute the following command in the top-level application directory to run the tests:

$ mocha

All new feature development should have corresponding unit tests to validate correct functionality.

License

MIT license.

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Copyright

Copyright © 2014. Athan Reines.