CODEWITHSUNDEEP
go
kingcope
kingcope

Reputation: 1141

golang download file and follow redirects

i want to download file from redirect url, and return filename in variable filename, my actual code is : 

package main

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

func downloadFile(filepath string, url string) (err error) {

  // Create the file
  out, err := os.Create(filepath)
  if err != nil  {
    return err
  }
  defer out.Close()

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

  // Writer the body to file
  _, err = io.Copy(out, resp.Body)
  if err != nil  {
    return err
  }

  return nil
}

func main() {

  var filename string = "urls.txt"
  var url1 string = "http://94.177.247.162:5000/random"

  downloadFile(filename, url1)

}

how i can change my code to return real name of file downloaded in variable filename.

example output :

urlix.txt

Upvotes: 0

Views: 2017

Answers (1)

SwiftD
SwiftD

Reputation: 6069

Redirects should be followed by default. You can get the final url visited to aquire the download using

finalURL := resp.Request.URL.String()

The last part of the url is your filename on the remote so something like this should work

parts := strings.Split(finalURL, "/") filename := parts[len(parts)-1]

Upvotes: 2

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