bootstrap related css js files dowload created by hygull - https://repl.it/FjBp/0

bootstrap related css js files dowload.go

/*
	Date of creation : 14/02/2017
	Aim              : To download the required css and javascript file from the CDN.
	Coded By 	 : Rishikesh Agrawani
*/
package main

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

func main() {
	file_map := make(map[string]string) //Defining Map
	file_map["bootstrap.min.css"] = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
	file_map["jquery.min.js"] = "https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"
	file_map["bootstrap.min.js"] = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"

	for filename, cdn_path := range file_map { //Iterating over map
		DownloadFile(filename, cdn_path) //To call the DownloadFile() function
	}
}

func DownloadFile(filename string, cdn_path string) {
	f, err1 := os.Create(filename) //Creating a file on current working directory
	if err1 != nil {
		fmt.Print("Error...")
		return
	}
	defer f.Close()

	fmt.Println("Downloading file ", filename)
	response, err2 := http.Get(cdn_path) //Get the file from CDN(Content delivery network)
	if err2 != nil {
		fmt.Print("Error...")
		return
	}
	defer response.Body.Close()

	_, err3 := io.Copy(f, response.Body) //Copy the response body(file content) to the created file
	if err3 != nil {
		fmt.Println("Error...")
		return
	}
	fmt.Print("File ", filename, "successfully downloaded.") //Printing success message
}