[Golang] Download File From URL

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

func download(url string) (err error) {
      filename := path.Base(url)
      fmt.Println("Downloading ", url, " to ", filename)

      resp, err := http.Get(url)
      if err != nil {
              return
      }
      defer resp.Body.Close()

      f, err := os.Create(filename)
      if err != nil {
              return
      }
      defer f.Close()

      _, err = io.Copy(f, resp.Body)
      return
}