Asynchronous HTTP response handling

AsyncHttpReqRes.go

package main

import (
	"fmt"
	"net/http"
	"time"
)

type HttpResp struct {
	Id   string
	Resp *http.Response
	Err  error
}

func AsyncGet(urls map[string]string) []*HttpResp {
	ch := make(chan *HttpResp)
	responses := []*HttpResp{}

	for track_id, url := range urls {

		go func(i, u string) {
			resp, err := http.Get(u)
			fmt.Println(" \nHTTPRequest from : ", track_id)
			ch <- &HttpResp{i, resp, err}
		}(track_id, url)
	}

loop:
	for {
		select {
		case r := <-ch:
			fmt.Println("HTTPResponed : ", r.Id)
			responses = append(responses, r)
			if len(responses) == len(urls) {
				break loop
			}
		case <-time.After(50 * time.Millisecond):
			fmt.Printf(".")
		}
	}
	return responses
}

func main() {
	urls := map[string]string{
		"google":     "http://www.google.co.in",
		"duckduckgo": "https://duckduckgo.com",
		"yahoo":      "https://in.yahoo.com/?p=us",
	}
	AsyncGet(urls)

	//time.Sleep(100 * time.Millisecond)
}