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package common
import (
"errors"
"net/url"
"strings"
)
// GetFileExtensionFromUrl
// copied from https://elisegev.medium.com/get-a-file-extension-from-a-url-in-golang-5061d4a298a
func GetFileExtensionFromUrl(rawUrl string) (string, error) {
u, err := url.Parse(rawUrl)
if err != nil {
return "", err
}
pos := strings.LastIndex(u.Path, ".")
if pos == -1 {
return "", errors.New("couldn't find a period to indicate a file extension")
}
return u.Path[pos+1 : len(u.Path)], nil
}
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