WCF URITemplate

Question

I have an operation contract in an existing WCF service. Now I am extending it for WCF REST api and I am getting a lot of errors, the last one in the service is around parameters. My code is as below:

    [OperationContract(Name = "Messages", IsOneWay = true)]
    [WebInvoke(Method = "GET",
        UriTemplate = "/Messages/?id={id}&fileId={fileId}",
        ResponseFormat = WebMessageFormat.Xml, 
        BodyStyle = WebMessageBodyStyle.Wrapped)]
    [Description("Inbound Message")]
    void Messages(Guid id, int fileId);

I am getting the error:

The UriTemplate '/Messages/?id={id}&fileId={fileId}' is not valid; each portion of the query string must be of the form 'name=value', when value cannot be a compound segment. See the documentation for UriTemplate for more details.*

Please suggest what am I missing in the uritemplate?

Answer 1

You need to remove / before ? from UriTemplate and change id parameter to string.

[OperationContract(Name = "Messages", IsOneWay = true)]
[WebInvoke(Method = "GET",
    UriTemplate = "/Messages?id={id}&fileId={fileId}",
    ResponseFormat = WebMessageFormat.Xml, 
    BodyStyle = WebMessageBodyStyle.Wrapped)]
[Description("Inbound Message")]
void Messages(string id, int fileId);

See also: UriTemplate and UriTemplateTable