Deleting nwb files from dandisets

[GiedreSilk]

I apologize if this is a basic question, but I wanted to ask if there is a way to delete all the uploaded NWB files at once from a dandiset that has not been published yet. I can find the option to delete them one by one, but I have around 200 files, and it would be very helpful if I could delete them all at once.

[CodyCBakerPhD]

Not through the website, but you can do these via the Python API

Set an environment variable called DANDI_API_KEY equal to your usual DANDI token

import os
from pathlib import Path

from dandi.dandiapi import DandiAPIClient

# Form a list of filenames you wish to delete; e.g., `sub-ABC_ses-123.nwb`
dandi_file_paths_to_remove = [...]

client = DandiAPIClient(token=os.environ["DANDI_API_KEY"])
dandiset = client.get_dandiset(dandiset_id="<enter your six-digit dandiset ID>")
assets = list(dandiset.get_assets())  # This fetches all live assets on the dandiset

assets_to_remove = [asset for asset in assets if Path(assets.path).name in dandi_file_paths_to_remove]

# The batch delete command
for asset_to_remove in assets_to_remove:
    asset_to_remove.delete()

[GiedreSilk]

Thank you!

[yarikoptic]

See/use https://dandi.readthedocs.io/en/latest/cmdline/delete.html