Permanent sharing links via python api OR expiring sharing links via js in wix api

I have a system by which I load audio files to dropbox via python, and all of these files need to be accessable to anyone with the shared link, thus allowing me to give my site's visitors access to the lectures in my dropbox folder. 

Ideally, I'd like to create a permanent link for each file that I add to a collection on my site via a post-request, and I can then just use this url whenever necessary as queried by the site visitor. Is this possible? A permanent link to be saved for future reference? 

I've search far and wide, and haven't found a way to do this. So - on to my second best option:

Assuming I save the necessary meta-data to my site's collection, maybe I can then use some backend javascript in order to create and use the shared link. How should I go about this?

Can I use the key and secret I'm allready using in my python script? 

Does one use a url-fetch such as https://api.dropbox.com/1/shares/<root>/<path> ?

Or does one need to call sharingCreateSharedLinkWithSettings?

The site is a Wix created site in case it matters...

Any pointers would be greatly appreciated! 

Thanks!