Causing HTTP error status to be returned in WCF

Question

How can I get my WCF service to communicate errors in a RESTful manner? Specifically, if the caller passes invalid query string parameters to my method, I\'d like to have a 400

Answer 1

I wanted to implement the same solution you are asking, the link below worked perfect when you want to play with HTTP status codes.

How can I return a custom HTTP status code from a WCF REST method?

There is a WebOperationContext that you can access and it has a OutgoingResponse property of type OutgoingWebResponseContext which has a StatusCode property that can be set.

WebOperationContext ctx = WebOperationContext.Current;
ctx.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.OK;