How do I use HttpWebRequest GET method w/ ContentType=“application/json”

Question

This one is real simple, run this Silverlight4 example with the ContentType property commented out and you\'ll get back a response from from my service in xml. Now uncomment

Answer 1

Stephen, setting the content type is to allow SENDING JSON, not receiving it. There are several ways to do this. You can support both JSON and XML or only JSON. If all you want to do is support JSON then you can do this by setting the ResponseFormat property on the WebGet attribute for the service operation.

If you want to support both JSON and XML then you need to either enable automatic format selection on the service and send an accept header of "application/json", otherwise you can use a format string parameter in the query string and have the service use the WebOperationContext.OutgoingResponse.Format property.

Here's a post that covers various ways to do this from the server side. If you go the route of supporting automatic format selection then you need to set the accept header of the HttpWebRequest to "application/json"