 
        
        Photo by  John Barkiple on Unsplash 
       
    
       
     
    
    When building and deploying application clients, controlling the visibility of various runtime features can simplify client deployment and testing. In this article, we will build the FeatureService which allows an application to query the service for a set of runtime feature toggles. These feature toggles can be used by the application client to enable or disable selected features.
 
        
      