Web Crawler in Golang | Web Crawler using Colly and Goquery | Golang Beginners

Lets Create a Simple Web Crawler using Colly and Goquery.

A Web crawler, sometimes called a spider or spiderbot and often shortened to crawler, is an Internet bot that systematically browses the World Wide Web, typically operated by search engines for the purpose of Web indexing.

Web search engines and some other websites use Web crawling or spidering software to update their web content or indices of other sites’ web content. Web crawlers copy pages for processing by a search engine, which indexes the downloaded pages so that users can search more efficiently.

Install
colly: go get github.com/gocolly/colly
goquery: go get github.com/PuerkitoBio/goquery

Colly
Lightning Fast and Elegant Scraping Framework for Gophers
Colly provides a clean interface to write any kind of crawler/scraper/spider.
With Colly you can easily extract structured data from websites, which can be used for a wide range of applications, like data mining, data processing or archiving.

goquery: goquery brings a syntax and a set of features similar to jQuery to the Go language. It is based on Go’s net/html package and the CSS Selector library cascadia. Since the net/html parser returns nodes, and not a full-featured DOM tree, jQuery’s stateful manipulation functions (like height(), css(), detach()) have been left off.

#golang #golangWebCrawler #golangTutorial #WebCrawlerGo #collyGo #GoQuery.