[klauspost]

> If I could change one thing about S3's API I would like an option to read the metadata with the listings.

Agree. In MinIO (disclaimer: I work there) we added a "secret" parameter (metadata=true) to include metadata and tags in listings if the user has the appropriate permissions. Of course it being an extension it is not really something that you can reliably use. But rclone can of course always try it and use it if available :)

> You can create zero length files ending in /

Yeah. Though you could also consider "shared prefixes" in listings as directories by itself. That of course makes directories "stateless" and unable to exist if there are no objects in there - which has pros and cons.

> Or alternatively a way of setting the Last-Modified on an object when you upload it would do too.

Yes, that gives severe limitations to clients. However it does make the "server" time the reference. But we have to deal with the same limitation for client side replication/mirroring.

My personal biggest complaint is that there isn't a `HeadObjectVersions` that returns version information for a single object. `ListObjectVersions` is always going to be a "cluster-wide" operation, since you cannot know if the given prefix is actually a prefix or an object key. AWS recently added "GetObjectAttributes" - but it doesn't add version information, which would have fit in nicely there.

[nickcw]

> Agree. In MinIO (disclaimer: I work there) we added a "secret" parameter (metadata=true) to include metadata and tags in listings if the user has the appropriate permissions. Of course it being an extension it is not really something that you can reliably use. But rclone can of course always try it and use it if available :)

Is this "secret" parameter documented somewhere? Sounds very useful :-) Rclone knows when it is talking to Minio so we could easily wedge that in.

> My personal biggest complaint is that there isn't a `HeadObjectVersions` that returns version information for a single object. `ListObjectVersions` is always going to be a "cluster-wide" operation, since you cannot know if the given prefix is actually a prefix or an object key

Yes that is annoying having to do a List just to figure out which object Version is being referred to. (Rclone has this problem when using --s3-list-version).