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node-jstream

Continuously reads in JSON and outputs Javascript objects. Meant to be used with keep-alive connections that send back JSON on updates.

Usage

var JStream = require('jstream');
var request = require('request');

request('http://api.myhost.com/updates.json')
  .pipe(new JStream()).on('data', function(obj) {
    console.log('new js object');
    console.log(obj);
  });

API

new JStream([path])

Creates an instance of JStream. Inherits from Stream. Can be written to and emits data events with Javascript objects.

path can be an array of property names, RegExp's, booleans, and/or functions. Objects that match will be emitted in data events. Passing no path means emitting whole Javascript objects as they come in. For example, given the path ['results', true, 'name'] and the following JSON gets written into JStream

{ "results": [
  {"seq":99230
  ,"id":"newsemitter"
  ,"changes":[{"rev":"5-aca7782ab6beeaef30c36b888f817d2e"}]}
, {"seq":99235
  ,"id":"chain-tiny"
  ,"changes":[{"rev":"19-82224279a743d2744f10d52697cdaea9"}]}
, {"seq":99238
  ,"id":"Hanzi"
  ,"changes":[{"rev":"4-5ed20f975bd563ae5d1c8c1d574fe24c"}],"deleted":true}
] }

JStream will emit newsemitter, chain-tiny, and Hanzi in its data event.

Install

npm install jstream

Tests

Tests are written with mocha

npm test

License

MIT

README.md