You are implementing a WCF Data Service to expose data from a database named Northwind.
You create a class named NorthwindDataService that extends DataService. You need to configure rights on entity sets and service operations.

How should you modify NorthwindDataService?

WCF Data Services uses the IDataServiceConfiguration to set up the behavior of the service, including rights on entity sets and service operations, limits on the allowed requests, registering types not discoverable by default, and the default verbosity on error handling. DataService<T> classes use this type to configure the service by implementing a static method named InitializeService, returning void, and taking a single argument of type IDataServiceConfiguration. The configuration object may be used only during the call to service initialization.

Implementing IDataServiceConfiguration will have no effect. You must implement a static method named InitializeService, returning void, and taking a single argument of type IDataServiceConfiguration.