using Colly lib we can write any kind of crawler/scraper/spider program

Colly can easily extract structured data from any websites, which can be used for a wide range of applications, like data mining, data processing or archiving bots and automated systems.

##Basic Scraping Program

func main() {
 	c := colly.NewCollector()
 
 	// Find and visit all links
 	c.OnHTML("a", func(e *colly.HTMLElement) {
 		e.Request.Visit(e.Attr("href"))
 	})
 
 	c.OnRequest(func(r *colly.Request) {
		fmt.Println("Visiting", r.URL)
	})

	c.Visit("http://go-colly.org/")
}

or you can use index.go program which will visit on your desire link and grab and print all found links using command

go run index.go