Golang : Save(pipe) HTTP response into a file

Problem :

You want to save or pipe a website content via http.Get() function to a file for processing.

Solution :

Read the http response and save the body into a file via io.Copy() function. For example :

 package main

 import (
 "fmt"
 "io"
 "net/http"
 "os"
 )

 func main() {
 response, err := http.Get("https://www.socketloop.com")

 if err != nil {
 fmt.Println(err)
 os.Exit(1)
 }

 defer response.Body.Close()

 htmlfile, err := os.Create("file.html")

 if err != nil {
 fmt.Println(err)
 os.Exit(1)
 }

 defer htmlfile.Close()

 // save response body into a file
 io.Copy(htmlfile, response.Body)

 fmt.Println("HTML data saved into file.html")
 }