Hello,
We are migrating from Knime-server to Knime Business Hub,
We have few useful workflows/app on the knime server : where the end user through the Web-UI is uploading a xlsx/csv file, Knime-server does store it locally, process it and give the ability to see results or to download.
Using “File Upload widget” node then the “CSV reader” node.
Thank you for your question. The error you see is returned when a file is saved in an absolute path on the remote directory, which is something we don’t recommend (it allows workflow builders to access all files of the executor, which is why we disallow this in default KNIME Server and Business Hub executor configurations),
For use-cases where a file is simply processed within the workflow and not needed after results are returned to the user, I would recommend saving the files either in a temporary directory, or, maybe simpler, relative to the workflow (usually in the “data” area).
thank you for you quick reply.
With your answer, I have found the way to do it.
if that can be useful for other peoples :
In the “file upload widget” node, tick the “Store uploaded file in Workflow directory”
Then you can use the variable output (path) in a file writer node.
For the file download widget : it has to be a variable string in “CUSTOM/Knime URL” format
