Adding global error handling to WCF REST service

Question

I have a WCF/REST Web Service that I\'m trying to add a global exception handler to. I\'m looking for something similar to the Application_Error event in a standard .NET web

Answer 1

The wiring up of your IServiceBehaviour can be achieved by creating a custom WebServiceHostFactory that overrides CreateServiceHost.

For example if you have a class GlobalErrorHandlerBehaviour which implements IServiceBehavior, then you could wire it up as follows:

public class CustomWebServiceHostFactory : WebServiceHostFactory
{
    protected override ServiceHost CreateServiceHost(System.Type serviceType, System.Uri[] baseAddresses)
    {
        return ApplyGlobalErrorHandler(base.CreateServiceHost(serviceType, baseAddresses));
    }

    private ServiceHost ApplyGlobalErrorHandler(ServiceHost serviceHost)
    {
        serviceHost.Description.Behaviors.Add(new GlobalErrorHandlerBehaviour());
        return serviceHost;
    }
}

You would then update your call to the ServiceRoute constructor to pass in this custom factory.