API - Retrieve Item ID Based on Dublin Core Identifier

Hey Gang!

Can anyone point me in the right direction as to retrieving an item's ID via the API? I have a bunch of disordered PDFs I'd like to inject into my instance, and they need to be collated based on a file-prefix. I'd like to create an ITEM if it doesn't already exist based on "Identifier" and upload the PDF, or simply upload the PDF if the ITEM exists. Obviously I'd need the ITEM-ID for this.


There's not really a search functionality based on Dublin Core fields at present.

Thanks Patrick. I figured it wasn't there, but hoped there might be a clever way of filtering the "items" JSON result. I had an idea of parsing that response, but it'd be SUPER inefficient. I'm in the middle of constructing a client-side solution now.