webHttpBinding and netTcpBinding with streamed OperationContract and parameters in UriTemplate

Question

Hello,

I'm using a webHttpBinding for streamed transfer. Now I wan't add a netTcpBinding endpoint, but there are additional parameter.

[OperationContract]
[WebInvoke(UriTemplate = "UploadDocument/{documentToken}/{fileName}")]
void UploadDocument(String documentToken, string fileName, Stream stream);

When I start the service I get the following error:

For request in operation UploadDocument to be a stream the operation must have a single parameter whose type is Stream.

Is there a workaround for this?

Normally for netTcpBinding I have to change to a message contract, but is it possible to use a UriTemplate together with a MessageContract?

Thanks,

Dieter