What does my WCF service expect the request data to look like? - wcf

Question

I've got a WCF-hosted service right now which is self-hosted and defined like this:
[OperationContract]
[WebInvoke(RequestFormat = WebMessageFormat.Json, Method = "PUT", UriTemplate = "/device")]
void updateDeviceLevel(ZDevice device);
The ZDevice class looks like this:
public class ZDevice {
public bool? newPowerState { get; set; }
public int nodeId {get; set;}
}
I have a simple Mac client which consumes the service by using an http post. It posts {"newLevel":27,"nodeId":6} to the \devices url and .NET magically stuffs the values into a ZDevice object for me. All is well here.
Now however, I need to add some basic security to the mix. I've done this by adding a new parameter and some "RequestWrapping" to the method call:
[OperationContract]
[WebInvoke(RequestFormat = WebMessageFormat.Json, BodyStyle=WebMessageBodyStyle.WrappedRequest, Method = "PUT", UriTemplate = "/device")]
void updateDeviceLevel(string password, ZDevice device);
What I'm trying to do now is figure out what syntax the server is expecting from the consuming clients. I'd hoped that posting in {"password":"somepwd", "newLevel":27,"nodeId":6} would work, but .NET is no longer able to "deserialize" that into the ZDevice object like it did before.
Anyone got some suggestions for me?
Thanks

Answer 1

It should look like this:
{"password":"somepwd", "device": {"newLevel":27,"nodeId":6}}
Each property on the JSON object has a value; and in the case of device it's just a new object.
Note that in your ZDevice class you called it newPowerState, but in JSON you are calling it newLevel. In your class it's also a bool, but in JSON you are assigning it an int. Something isn't matching up.
Based on your C#, I'd expect it to look like this:
{"password":"somepwd", "device": {"newPowerState":true,"nodeId":6}}
The property names in your JSON object should match the parameter / property names in C#.