The aim of this library is to be a comprehensive source for extracting all html embedded metadata. Currently it supports Schema.org microdata using third party libraries, a native Dublin Core and Open Graph implementation, and some general metadata that doesn't belong to a particular standard (for instance, the content of the title tag, or meta description tags).
Planned is support for RDFa , twitter, AGLS, eprints, highwire, BEPress and other yet unheard of metadata types. Contributions and requests for other metadata types welcome!
npm install git://github.com/mvolz/html-metadata.git
var scrape = require('html-metadata');
var url = "http://blog.woorank.com/2013/04/dublin-core-metadata-for-seo-and-usability/";
scrape(url, function(err, meta){
console.log(meta);
})The scrape method used here invokes the parseAll() method, which uses all the available methods registered in method metadataFunctions(), and are available for use separately as well, for example:
var cheerio = require('cheerio');
var request = require('request');
var dublinCore = require('html-metadata').parseDublinCore;
var url = "http://blog.woorank.com/2013/04/dublin-core-metadata-for-seo-and-usability/";
request(url, function(error, response, html){
$ = cheerio.load(html);
dublinCore($, function(err, results){
console.log(results);
});
});The method parseGeneral obtains the following general metadata:
<meta name="author" content="">
<link rel="author" href="">
<link rel="canonical" href="">
<meta name ="description" content="">
<link rel="publisher" href="">
<meta name ="robots" content="">
<link rel="shortlink" href="">
<title></title>