A powerful crawler support strategy to different url, the crawler can traverse all web page in a site recursively with certain deep. of course, you alse can do not use recursive crawl in the callback.

You can put different strategy to process the web page of certain url pattern, here we use routes to match the url,routes support regular expression, see routes.

In order to avoid event loop queue overflow, you can set the concurrency number to send certain requests in a time.

It can also support more text code by using iconv-lite, you can set decode for website with different text code,or set decode to null let crawler analyze it automatically.

We use request to browse website, you can get more config parameter for http request, see request.

npm install crawlerx

/**
 * Created by wuwei on 14-4-4.
 */
var crawler = require('crawlerx');

crawler.addStrategy(/.cnodjs.org./,function(err, $, body, url, resp){
	  //console.log(body);
    console.log($("title").text(),url);
});

crawler.addStrategy(/.github.com./,function(err, $, body, url, resp){
	  //console.log(body);
    console.log($("title").text(),url);
});


crawler.request("https://cnodejs.org",{decode:"utf-8",deep:3,concurrency:3}, function(err, $, body,url,resp){
  $.spider();  //start recursive crawl
});

( The MIT License )

Copyright (c) 2014 wuwei contributors

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.