The Zuora for Salesforce Sample Code Suite on our GitHub site provides executable code examples in unmanaged Force.com packages. This code suite also includes a reference implementation of a custom Product Selector with filtering capabilities, built using Component Library.
The sample code is offered for demonstration purposes only. It has worked for in-house and external developers, but is not guaranteed to work in every situation. Zuora Global Support is not equipped to help customize or troubleshoot code.