Golang : Get final or effective URL with Request.URL example

Tags : golang final-url effective-url request-url

There are times when we query a web server, it will re-direct internally and returns back with a slightly different URL structure. The returned URL is known as final URL or "effective url". In this following example, we will learn how to use https://golang.org/pkg/net/http/#Request.URL to retrieve the final URL.

 package main

 import (

 func main() {

 // without https (SSL)
 originalURL := "http://socketloop.com"

 resp, err := http.Get(originalURL)

 if err != nil {

 // if there is any re-direction happening behind the scene
 // the finalURL will be different
 // in this case, there will be a re-direction to https (SSL) version

 finalURL := resp.Request.URL.String()

 fmt.Println("Original URL is : ", originalURL)
 fmt.Println("Final URL is : ", finalURL)

Socketloop.com's NGINX web server will automatically redirect all non-https request to https(SSL). Therefore, the final URL will be SSL-ed connection.

Original URL is : http://socketloop.com

Final URL is : https://socketloop.com/

References :



  See also : Golang : Intercept and compare HTTP response code example

Tags : golang final-url effective-url request-url

By Adam Ng

IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.