signedUrl method
a URL that works for expiresIn. For the local disk, serve it with
Route.files('files') and set the disk url to that path.
Implementation
Future<String> signedUrl(
String filename, {
Duration expiresIn = const Duration(minutes: 30),
}) {
return use().getSignedUrl(
_key(filename),
options: SignedUrlOptions(expiresIn: expiresIn),
);
}