I can get the path to the public files directory by using Filesystem::realpath:

$path = $filesystem->realpath('public://');

But how can I get the URL of public://?

$my_path = file_create_url("public://"); 

Will definately work, however it's not coming from a service. Let me investigate more on this!

Okey I found it! This is how file_create_url works:

And this is the corresponding line specific to "public://" resolving (if you are sure you are trying to resolve a "public://..." uri):

  if ($wrapper = \Drupal::service('stream_wrapper_manager')->getViaUri($uri)) {
  return $wrapper->getExternalUrl();

Which means you will have to use StreamWrapperManager service, and after calling the getViaUri, you will able to get the external url. So this is service based solution!

  • 1
    I looked at Url::fromUri, but couldn't get it to work with public://. Ideally I would like to use a service.
    – Tim
    Jun 8 '16 at 14:46
  • file_create_url works fine.
    – Tim
    Jun 8 '16 at 14:48
  • Came back to this. stream_wrapper_manager works as intended!
    – Tim
    Oct 17 '17 at 10:21

Another way to achieve it.

$wrapper = \Drupal::service('stream_wrapper_manager')->getViaScheme(file_default_scheme());
return $wrapper::baseUrl();

will return DOMAIN/sites/default/files for my case. For 'public', $wrapper belongs to class "PublicStream", you can check other methods inside.

I've added it because this works for me:

$my_path = file_create_url("public://");

But this not work:

if ($wrapper = \Drupal::service('stream_wrapper_manager')->getViaUri($uri)) {
  return $wrapper->getExternalUrl();

in my project, it returns "public://".

Maybe it's related to update of Drupal Core or some settings. Unfortunately, it's not easy to find the root cause. I hope this information will be helpful for somebody.


I was having -


and I got the image by -

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