A widget it has got ...

A strange druken naivety turns people, especially students to cut open a guinness cab to find out what is that "thing" that rattles in the bottom of an empty can. This "thing" serves an essential purpose with a guinness by releasing a small amount of nitrogen to give you a perfect white head from a can.

"Great! Thanks for that bit of useless information" I hear you cry - but it does lead me into the widget I'm (hopefully) going to create.

Following my Talis theme - it's going to be a "you should read next" widget - you know - kinda similar to the Amazon "people who liked this also liked ..." Only I don't use Amazon.

The ingredients:
1x Keystone
1x OCLC XISBN
1x Talis Platform

Objective:
All I want is a single recommendation for the next book a person should read that is available at the library the user is a member.

Method:
So, if you've not had the idea already, or you can't see what I'm doing let me explain:
In principle - it's very simple - I take a _valid_ ISBN from a current loan, pass that to the XISBN service, then check the availability of the results (for that library) via the platform ...