GitHub user xuang7 edited a comment on the discussion: Supporting 
Directory-Based Dataset Access in UDFs

Recently, I have been working on integrating brain imaging visualization tools 
into the platform. These tools typically expect a folder containing a specific 
set of files, such as a manifest, coordinates, cell metadata, and other 
supporting files.

Since we do not currently have a directory-access API, the current workaround 
is essentially a file-by-file presigned URL approach at the frontend level. For 
each file, the viewer has to:
1. call `/api/dataset/presign-download?...` to get a presigned URL
2. fetch the actual file content from MinIO using that URL

This is effectively similar to Design Choice 1, except that it is currently 
happening at the frontend level. It works as a workaround since my use case can 
lazy-load files on demand, but it may become inefficient when a dataset 
contains a large number of files. A directory-access API would simplify this 
significantly and would be very helpful for tools that require the full 
directory.

GitHub link: 
https://github.com/apache/texera/discussions/4352#discussioncomment-16484470

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