Cannot find IO for nrrd file

im trying to display an .nrrd file in the viewer from S3. i have a link for downloading the file.

when i download and copy the file to my project it load without any issues, how ever loading it directly from the s3 link throws an error from the piepline.worker that it cannot find IO for the file.

any idea or suggestions for the issue? (im trying to find a solution that will not require downloading the file to my server every time i want to display it)

[Jmennius]

image.pathname.split('/').at(-1) looks great!

Do you have the time to open a PR?

I kind of went a bit further, really hope I didn’t go overboard and that function is not public API 😃

[Jmennius]

Does the URL end in .nrrd? Yes: https://dandiarchive.s3.amazonaws.com/3d313fc2-0204-496d-bfa1-5c90951ee640.nrrd No: https://dandiarchive.s3.amazonaws.com/3d313fc2-0204-496d-bfa1-5c90951ee640

For debugging: here is the place passing a URL to ‘createViewer’ will reach:

https://github.com/Kitware/itk-vtk-viewer/blob/3e546aaab812c18877d43c163587647ad7eb6155/src/IO/toMultiscaleSpatialImage.js#L69

See it grabbing the last part of the URL after the / and treating it as the “filename”?

Hi there 😃

So can we replace this parsing with something more robust like

image.pathname.split('/').slice(-1)[0]

that would take care of any query parameters and so on? (assuming image is an instance of URL)

P.S. maybe even use at(-1) instead of slice(-1)[0] (depends on compatibility I guess)?