@matt1 as requested dropping into this thread from the other thread Strange error when updating an item file - #26 by itbeyond (hey how do you link the thread like you did?).
The format I posted for the item came from running a query using the PaperUI Rest API Documentation Add-on. My real format for the url http://openhabianpi:8080/rest/items/Kitchen_PantryLights was a line like:
{"link":"http://openhabianpi:8080/rest/items/Kitchen_PantryLights","state":"ON","editable":false,"type":"Switch","name":"Kitchen_PantryLights","label":"Pantry Lights","category":"light","tags":["Lighting"],"groupNames":["gDevices","gRoom_Kitchen"]}
You can install the REST API Documentation in PaperUI in Add-Ons - MISC - REST Documentation - then open this from the Dashboard and you navigate to the right spot and run the query which simply gives you the formatted response.
I should also point out that currently I have only 1 tagged device in my OH setup as my other 50 or so are still sitting on my Vera and using the Vera - Alexa bridge that I am trying to get away from. I will be bringing more across shortly now that I have it working.