node-crawlervsgerapy

MIT 30 6 6,790

15.3 thousand (month) Sep 10 2012 2.0.2(2025-05-28 09:36:01 ago)

3,495 4 74 MIT

Jul 04 2017 514 (month) 0.9.13(2023-07-19 18:53:46 ago)

node-crawler is a popular web scraping library for Node.js that allows you to easily navigate and extract data from websites. It has a simple API and supports concurrency, making it efficient for scraping large numbers of pages.

Features:

Server-side DOM & automatic jQuery insertion with Cheerio (default) or JSDOM,
Configurable pool size and retries,
Control rate limit,
Priority queue of requests,
forceUTF8 mode to let crawler deal for you with charset detection and conversion,
Compatible with 4.x or newer version.
Http2 support
Proxy support

Gerapy is a Distributed Crawler Management Framework Based on Scrapy, Scrapyd, Scrapyd-Client, Scrapyd-API, Django and Vue.js.

It is built on top of the Scrapy framework and provides a simple and easy-to-use interface for performing web scraping tasks. Gerapy also includes features such as support for scheduling and distributed crawling, as well as a built-in web-based dashboard for monitoring and managing scraping tasks. Additionally, Gerapy is designed to be highly extensible, allowing users to easily create custom plugins and integrations.

Overall, Gerapy is a useful tool for those looking to automate web scraping tasks and extract data from websites.

Example Use

```javascript const Crawler = require('crawler'); const c = new Crawler({ maxConnections: 10, // This will be called for each crawled page callback: (error, res, done) => { if (error) { console.log(error); } else { const $ = res.$; // $ is Cheerio by default //a lean implementation of core jQuery designed specifically for the server console.log($('title').text()); } done(); } }); // Queue just one URL, with default callback c.queue('http://www.amazon.com'); // Queue a list of URLs c.queue(['http://www.google.com/','http://www.yahoo.com']); // Queue URLs with custom callbacks & parameters c.queue([{ uri: 'http://parishackers.org/', jQuery: false, // The global callback won't be called callback: (error, res, done) => { if (error) { console.log(error); } else { console.log('Grabbed', res.body.length, 'bytes'); } done(); } }]); // Queue some HTML code directly without grabbing (mostly for tests) c.queue([{ html: '

This is a test

' }]); ```

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