Transform stream factory to format data for TCP transmission.
npm install flow-tcp-marshalflow-tcp-marshal
===
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> Transform stream factory to format data for TCP transmission.
`` bash`
$ npm install flow-tcp-marshal
For use in the browser, use browserify.
To create a stream factory,
` javascript
var flowFactory = require( 'flow-tcp-marshal' );
// Create a new factory:
var flow = flowFactory();
`
The factory has the following methods...
#### flow.delimiter( [value] )
This method is a setter/getter. If no delimiter is provided, returns the delimiter used when marshalling streamed data. To set the delimiter,
` javascript`
flow.delimiter( ' | ' );
The default delimiter is a line feed: \n.
#### flow.marshal( [format] )
This method is a setter/getter. If no format is provided, returns the marshal format. To set the format,
` javascript`
flow.marshal( 'number' );
Available formats include: json, number, string, and boolean. The default marshal format is json.
#### flow.stream()
To create a new stream,
` javascript`
var stream = flowStream.stream();
When used as setters, all setter/getter methods are chainable. For example,
` javascript
var flowFactory = require( 'flow-tcp-marshal' );
var stream = flowFactory()
.delimiter( ' | ' )
.marshal( 'number' )
.stream();
`
` javascript
var eventStream = require( 'event-stream' ),
flowFactory = require( 'flow-tcp-marshal' );
// Create some data...
var data = new Array( 20 );
for ( var i = 0; i < data.length; i++ ) {
data[ i ] = Math.random();
}
// Create a readable stream:
var readStream = eventStream.readArray( data );
// Create a new stream:
var stream = flowFactory()
.delimiter( ' | ' )
.marshal( 'number' )
.stream();
// Pipe the data:
readStream
.pipe( stream )
.pipe( eventStream.map( function( d, clbk ){
clbk( null, d.toString() );
}))
.pipe( process.stdout );
`
To run the example code from the top-level application directory,
` bash`
$ node ./examples/index.js
Unit tests use the Mocha test framework with Chai assertions. To run the tests, execute the following command in the top-level application directory:
` bash`
$ make test
All new feature development should have corresponding unit tests to validate correct functionality.
This repository uses Istanbul as its code coverage tool. To generate a test coverage report, execute the following command in the top-level application directory:
` bash`
$ make test-cov
Istanbul creates a ./reports/coverage directory. To access an HTML version of the report,
` bash``
$ open reports/coverage/lcov-report/index.html
---
Copyright © 2014. Athan Reines.
[npm-image]: http://img.shields.io/npm/v/flow-tcp-marshal.svg
[npm-url]: https://npmjs.org/package/flow-tcp-marshal
[travis-image]: http://img.shields.io/travis/flow-io/flow-tcp-marshal/master.svg
[travis-url]: https://travis-ci.org/flow-io/flow-tcp-marshal
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[dependencies-url]: https://david-dm.org/flow-io/flow-tcp-marshal
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[dev-dependencies-url]: https://david-dm.org/dev/flow-io/flow-tcp-marshal
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[github-issues-url]: https://github.com/flow-io/flow-tcp-marshal/issues