protected override void UpdateConfiguration(WebRouteConfiguration configuration)
{
ODataModelBuilder builder = configuration.CreateConventionModelBuilder();
configuration.MapODataServiceRoute(
"batch",
"DefaultBatch",
GetEdmModel(builder),
new DefaultODataPathHandler(),
ODataRoutingConventions.CreateDefault(),
configuration.CreateDefaultODataBatchHandler());
configuration.EnableContinueOnErrorHeader();
}