func DownloadFile(filepath, url string) error {
out, err := os.Create(filepath)
if (err != nil) {
return err
}
defer out.Close()
resp, err := http.Get(url)
if (err != nil) {
return err
}
defer resp.Body.Close()
_, err = io.Copy(out, resp.Body)
if (err != nil) {
return err
}
return nil
}