title: Api Keys in Query String with WCF Data Services
body: <p>I'm using query string based api keys for my WCF Data Service. I can handle this on the server pretty easily -- <a href="https://stackoverflow.com/questions/2481894/how-would-you-implement-api-key-in-wcf-data-service">How would you implement API key in WCF Data Service?</a></p>
  
  <p>However, how do I send the extra query string arguments from the client, using the Add Service Reference feature of VS2010? I saw an example for doing it when querying, but certainly not when adding/updating objects.</p>