public HttpResponseMessage Get_contractID([FromUri] Guid participationID) { var transaction = new TransactionalInformation(); var contractId = patientDataService.Get_ContractIDForParticipationID(participationID, connectionString, SessionToken, out transaction); if (transaction.ReturnStatus) { return(Request.CreateResponse <string>(HttpStatusCode.OK, contractId.ToString())); } return(Request.CreateResponse <TransactionalInformation>(HttpStatusCode.InternalServerError, transaction)); }