batch

Simple async batch with concurrency control and progress reporting.

Installation

$ npm install batch

API

var Batch = require('batch')
  , batch = new Batch;
 
batch.concurrency(4);
 
ids.forEach(function(id){
  batch.push(function(done){
    User.get(id, done);
  });
});
 
batch.on('progress', function(e){
 
});
 
batch.end(function(err, users){
 
});

Progress events

Contain the "job" index, response value, duration information, and completion data.

{ index: 1,
  value: 'bar',
  pending: 2,
  total: 3,
  complete: 2,
  percent: 66,
  start: Thu Oct 04 2012 12:25:53 GMT-0700 (PDT),
  end: Thu Oct 04 2012 12:25:53 GMT-0700 (PDT),
  duration: 0 }

License

MIT