Generate a proxy class with asynchronous methods and use it for new clients.

Question

A WCF service exposes the following contract over the HTTP protocol (code below).
Existing clients make blocking calls to the GetData method. The GetData method takes up to 5 seconds to execute.

You need to ensure that new clients can send non-blocking requests to this method, without modifying existing clients. What should you do?

Accepted Answer

Answer

Replace the service interface with the following code, implementing the new methods.

Answer

Replace the service interface with the following code, implementing the new methods.

Answer

Add a service endpoint that uses a full-duplex binding and use it for new clients.

Question from the WCF test

Generate a proxy class with asynchronous methods and use it for new clients.