Give your property a name, description and decide if it’s a required property or not.
Here you can see that I’ve completed the URL and selected the data format for the data source as JSON. The website jsonplaceholder.typicode.com is a free REST end point that provides services to return JSON data sets of various types and lengths. I picked the users list for this example. The website doesn’t require authentication so we can ignore that for now.
![](https://dw1.s81c.com//IMWUC/MessageImages/4b9f3014cefb493eb61e43b3fa992b0e.png)
Further down in the dialogue, we see these additional fields.
The Base Path tells UCD where to start looking in a complex structured data set for information you’re after. UCD can pick values out of an array of objects and present them to the user for selection.