Need the ability to query a subset of products in the catalog.

**As a** user
 **I need** to query a subset of products in the catalog
 **So that** I can see particular products
   
 ### Details and Assumptions
 * [document what you know]
   
 ### Acceptance Criteria  
   
 ```gherkin
 Given [some context]
 When [certain action is taken]
 Then [the outcome of action is observed]
 ```
