public HttpResponseMessage AddManifest(Manifest manifest)
        {
            manifest = _bll.AddManifest(manifest);
            var response = Request.CreateResponse <Manifest>(HttpStatusCode.Created, manifest);

            response.Headers.Location = new Uri(Url.Link("DefaultApi",
                                                         new
            {
                controller = "Manifests",
                id         = manifest.ID
            }));

            return(response);
        }