Is there any way to check if other users are editing the same file using HTTP API? I would love to be able to avoid creating conflict copies when a file upload job and other user work on the same file.
The Dropbox API doesn't offer a way to detect the presence of other users potentially editing a file via the API at the same time, but I'll pass this along as a feature request. I can't promise if or when that might be implemented though.
Check out the Detecting Changes Guide for ways to detect when changes have been committed though.