How to get progress informations when upload files to Digital Ocean Spaces with Flutter

Question

I'm trying to use Digital Ocean Spaces as file storage for my Flutter application. As API helper I'm using the package minio (https://pub.dev/packages/minio).

In general I can start upload and download operations. But I can't find a way to get progress informations.

I tried to set a bucket event like this:

void bucketListener() {
    // Listener
    final poller = minio.listenBucketNotification(bucket, events: [
      's3:PutObject:*',
    ]);
    poller.stream.listen((event) {
      print(event);
      print('--- event: ${event['eventName']}');
      // Get.find<EntriesController>(tag: "newEntry").videoUploadProgress[0];
    });
  }

But this listener not fires. Then here I found that Digital Ocean does not support Bucket Informations: https://developers.digitalocean.com/documentation/spaces/

Is there a way to get the upload progress when using the Digital Ocean storage? Thanks for your help!