get https://{server}/api/v2.1/dtable/app-upload-link/
Generate an upload link, including the parent- and the relative path. These values are needed in order to upload a file / an image to a base.
Afterwards, this file/image can be attached to a file/image column. Please note that this endpoint requires an API token instead of a Base token.
The upload link is only valid for a short time
The upload link is only valid for some minutes. After that the upload link must be created again.