Zoho Workdrive API call to find public external Link for a Folder

Zoho Workdrive API call to find public external Link for a Folder

Hi all,
I can create new external share links for a WD Folder using this API call https://workdrive.zoho.com.au/api/v1/links . This works fine, however if there is already an external link created for a given folder, trying to create a new one fails (which makes sense).

My question is, using API calls (i.e. not via the Web UI) How can I find out if an external link already exists for a folder and if so, what the URL is for this. Alternatively, how could i find the "Link Id" of an existing link so I can try and find the URL for this via GET https://www.zohoapis.com/workdrive/api/v1/links/{link_id} (or the AU DC equivalent) ?
Thanks in advance
Craig