post an api rest using cuit value and get an answer

func main() {
	
	fmt.Println("start") 
	cuit := "20-25851149-4"
	
	apiURL := "https://api.afip.gob.ar/sr-padron/v2/persona/" + cuit

	req, err := http.NewRequest("GET", apiURL, nil)
	if err != nil {
		panic(err.Error())
	}
	
	client := &http.Client{
		Timeout: time.Second * 10,
	}

	req.SetBasicAuth("fakeuser", "fakepassword")
	req.Header.Add("padron-usuario", "fakeuser")
	req.Header.Add("padron-password", "fakepassword")
	req.Header.Add("padron-token", "fakeuser")
	
	resp, err := client.Do(req)
	
	fmt.Println(resp)
	
	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {