Metadata Extractor (Open Graph, Twitter Cards , and others) for Node.js

An Open Graph and Twitter Cards implementation for Node.js. Simple to use; give it a URL and it'll give you the open graph meta properties scraped from that URL.

Install

npm install git://github.com/chadliu23/node-open-graph --save

Usage

var og = require('open-graph');

var url = "http://github.com/samholmes/node-open-graph/raw/master/test.html";

og(url, function(err, meta){
	console.log(meta);
})

Outputs:

{ og: 
   { site_name: 'GitHub',
     type: 'object',
     image: { url: 'https://avatars1.githubusercontent.com/u/1700992?v=3&s=400' },
     title: 'chadliu23/node-open-graph',
     url: 'https://github.com/chadliu23/node-open-graph',
     description: 'node-open-graph - An Open Graph implementation for Node.js.' },
  twitter: 
   { site: '@github',
     card: 'summary',
     title: 'chadliu23/node-open-graph',
     description: 'node-open-graph - An Open Graph implementation for Node.js.',
     image: { src: 'https://avatars1.githubusercontent.com/u/1700992?v=3&s=400' } },
  'browser-stats-url': 'https://api.github.com/_private/browser/stats',
  'browser-errors-url': 'https://api.github.com/_private/browser/errors',
  'pjax-timeout': '1000',
  'msapplication-TileImage': '/windows-tile.png',
  'msapplication-TileColor': '#ffffff',
  'selected-link': undefined,
  'google-analytics': 'UA-3769691-2',
  'octolytics-host': 'collector.githubapp.com',
  'octolytics-script-host': 'collector-cdn.github.com',
  'octolytics-app-id': 'github',
  'octolytics-dimension-request_id': 'DDF974CE:301A:6DD7503:556D77C9',
  'analytics-event': 'Rails, view, files#disambiguate',
  dimension1: 'Logged Out',
  dimension2: 'Header v3',
  'is-dotcom': 'true',
  hostname: 'github.com',
  description: 'node-open-graph - An Open Graph implementation for Node.js.',
  'go-import': 'github.com/chadliu23/node-open-graph git https://github.com/chadliu23/node-open-graph.git',
  'octolytics-dimension-user_id': '1700992',
  'octolytics-dimension-user_login': 'chadliu23',
  'octolytics-dimension-repository_id': '29286619',
  'octolytics-dimension-repository_nwo': 'chadliu23/node-open-graph',
  'octolytics-dimension-repository_public': 'true',
  'octolytics-dimension-repository_is_fork': 'true',
  'octolytics-dimension-repository_parent_id': '27179645',
  'octolytics-dimension-repository_parent_nwo': 'mvolz/node-open-graph',
  'octolytics-dimension-repository_network_root_id': '12169151',
  'octolytics-dimension-repository_network_root_nwo': 'samholmes/node-open-graph' 

}

Todo

1. Better data types
   Convert properties to numbers, etc.
2. Fallback data
   If Open Graph data isn't present, scrap img elements and document titles off the page.