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[Golang] Get Domain Name from URL

 2 years ago
source link: http://siongui.github.io/2018/01/31/go-get-domain-name-from-url/
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[Golang] Get Domain Name from URL

January 31, 2018

Get domain name from URL via Go net/url package in standard library.

Question:

Assume the URL is

https://siongui.github.io/pali-chanting/zh/archives.html

I want to get the domain name github.io from the URL. How to do it in Go?

Answer:

Run Code on Go Playground

package main

import (
      "fmt"
      "log"
      "net/url"
      "strings"
)

func main() {
      u, err := url.Parse("https://siongui.github.io/pali-chanting/zh/archives.html")
      if err != nil {
              log.Fatal(err)
      }
      parts := strings.Split(u.Hostname(), ".")
      domain := parts[len(parts)-2] + "." + parts[len(parts)-1]
      fmt.Println(domain)
}

Tested on: Go Playground

References:

[2]Find DNS records of a domain using Golang : golang

Author: Siong-Ui Te ∈ Category: Go

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