Laravel league/flysystem getting file URL with AWS S3

I'm not sure what the correct way of doing this is with Flysystem, but the underlying S3Client object has a method for doing that. You could do $filesystem->getAdapter()->getClient()->getObjectUrl($bucket, $key);. Of course, building the URL is as trivial as you described, so you don't really need a special method to do it.

I am using Laravel 5.2 and the code below seemed to work fine.

Storage::cloud()->url('filename');