GET some

get_some.go

package main

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

func main() {
	if len(os.Args) != 3 {
		fmt.Println("Usage: <url> <n>")
		os.Exit(1)
	}

	var wg sync.WaitGroup

	n, _ := strconv.Atoi(os.Args[2])
	for i := 0; i < n; i++ {
		q := i
		wg.Add(1)
		go func() {
			defer wg.Done()
			resp, err := http.Get(os.Args[1])
			if err != nil {
				fmt.Println("Error request")
				return
			}
			defer resp.Body.Close()
			f, err := os.OpenFile("/dev/null", os.O_RDWR, 0666)
			if err != nil {
				fmt.Println("Error opening null")
				return
			}
			io.Copy(f, resp.Body)

			fmt.Println("Done", q)
		}()
	}
	wg.Wait()
}