My Swift app needs to write 1KB of string data once a second to a file within my folder on Dropbox, in my Dropbox account.
My app specifies a different filename each second, but the folder URL is constant.
This is a one time app for R&D, not a product, only ever to be used by me.
ANSWER IS: NO.
WORKAROUND IS: Instead, use: Swifty DropBox SDK and API