[firebase_storage] Is it possible to delete a folder?

[tgbarker]

firebase_storage: ^8.0.3

I have a function that I thought would work, but does not.

  @override
  Future<void> deleteFolder(String filePath) async {
    return await firebase_storage
        .FirebaseStorage.instance
        .ref('$filePath')
        .delete();
}

The filePath is correct and points to a folder in my storage which contains a few sub folders and files.

E/StorageException(19263): StorageException has occurred.
E/StorageException(19263): Object does not exist at location.
E/StorageException(19263): Code: -13010 HttpResult: 404
E/StorageException(19263): { "error": { "code": 404, "message": "Not Found. Could not delete object", "status": "DELETE_OBJECT" }}
E/StorageException(19263): java.io.IOException: { "error": { "code": 404, "message": "Not Found. Could not delete object", "status": "DELETE_OBJECT" }}

Imagine I have the file structure

parent/child1/subfolder1

I would like to delete the child1 folder. Is this possible? I saw a listAll() function, surely I don't have to loop by hand with nested ListResult returns?

[tgbarker]

So anyone else looking for a solution, like @MiguelSOliveira and the duplicate question posted after mine.

Directories do not really exist and the "folder structure" is not really a classic true folder. If you delete all the files, then the folder no longer exists in the firebase admin console. So anyone can think about the following code which is a recursive function to delete all files from a "folder" (essentially a root filePath).

 Future<void> deleteFolder(String filePath) async {
    logger.d("Deleting storage folder for : " + filePath);
    firebase_storage.ListResult res =
        await firebase_storage.FirebaseStorage.instance
            .ref('$filePath')
            //.delete();
            .listAll();
    //await firebase_storage.FirebaseStorage.instance.ref('$filePath').
    for (firebase_storage.Reference item in res.items) {
      logger.d("Deleting : " + item.name);
      await firebase_storage.FirebaseStorage.instance
          .ref(item.fullPath)
          .delete();
    }
    for (firebase_storage.Reference item in res.prefixes) {
      logger.d("prefix : " + item.name);
      deleteFolder(item.fullPath);
    }
  }

I saw a listAll() function, surely I don't have to loop by hand with nested ListResult returns?
Yes, it seems I do have to.

[MiguelSOliveira]

Thanks for the reply @tgbarker .

If you delete all the files, then the folder no longer exists in the firebase admin console.

The folder is still present in firebase storage though, so it wasn't really deleted. That is my current problem.

[tgbarker]

Thanks for the reply @tgbarker .

If you delete all the files, then the folder no longer exists in the firebase admin console.

The folder is still present in firebase storage though, so it wasn't really deleted. That is my current problem.

That is strange because when I did the testing, if I deleted all the files under a "folder" and refreshed the admin console then the "folder" no longer exists.

[MiguelSOliveira]

Maybe it's because i'm trying to delete the root folder? In your case would be deleting the "parentFolder".

I want to delete all the way to top level folders.