loop through a web page, find a list of links, and navigate to the first one

package main

import (
  "fmt"
  "net/http"
  "golang.org/x/net/html"
  "strings"
)

func main() {
  resp,_ := http.Get("https://www.theguardian.com")
  defer resp.Body.Close()
  z := html.NewTokenizer(resp.Body)
  for {
    tt := z.Next()
    switch tt {
    case html.ErrorToken:
      // End of the document, we're done
      return
    case html.StartTagToken:
      t := z.Token()
      if t.Data == "a" {
        for _, a := range t.Attr {
          if a.Key == "href" && strings.Contains(a.Val, "/") {
            fmt.Println(a.Val)
            return
          }
        }
      }
    }
  }
}