This project enables BizTalk Server to expose RESTFul services through the WCF-Custom adapter.
More information about the REST Set Kit for BizTalk Server can be found here: http://blogical.se/blogs/mikael/archive/2012/05/28/rest-start-kit-for-biztalk-server.aspx
1.2 Added support for exception handling
Simply set the HTTP Status code is a Message Assignment shape:
httpResponse(bLogical.RESTSchemas.PropertySchema.HTTPStatusCode) = 400;