object-stream

Simplified streams of objects

object-stream

Simplified object streams based on Node streams2.

npm install object-stream
var objectStream = require('object-stream');
objectStream.fromArray([1, 2, 3]).pipe(...);

Pass an empty array or anything falsy to create an empty stream.

var objectStream = require('object-stream');
objectStream.fromArray([1, 2, 3])
  .pipe(objectStream.toArray(function (errarray) {
    /* array contains all items emitted from readable streams */
  }));

Synchronously (iterator has only one argument):

var objectStream = require('object-stream');
 
objectStream.fromArray([1, 2, 3])
  .pipe(objectStream.map(function (value) {
    return value * 2;
  }))
  .pipe(...);
 
// asynchronous 
objectStream.fromArray([1, 2, 3])
  .pipe(objectStream.map(function (valuecallback) {
    setTimeout(function () {
      callback(null, value * 2);
    }, 100);
  }))
  .pipe(...);

Asynchronously (iterator has two arguments: value and callback):

var objectStream = require('object-stream');
 
objectStream.fromArray([1, 2, 3])
  .pipe(objectStream.map(function (valuecallback) {
    setTimeout(function () {
      callback(null, value * 2);
    }, 100);
  }))
  .pipe(...);

Synchronously (iterator has only one argument):

var objectStream = require('object-stream');
 
function save(value) {
  /* save item... */
};
 
objectStream.fromArray([1, 2, 3]).pipe(objectStream.save(save));

Asynchronously (iterator has two arguments: value and callback):

var objectStream = require('object-stream');
 
function saveAsync(valuecallback) {
  /* save item... */
  callback();
};
 
objectStream.fromArray([1, 2, 3]).pipe(objectStream.save(saveAsync));

The MIT License (MIT)

Copyright (c) 2014, Nicolas Mercier

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.