private List <byte> CreateRequest(List <byte> buffer) { List <byte> bytes = new List <byte>(); BussinesTripInfo info = BussinesTripInfo.deserialise(buffer); int documentID = db.getDocumentID(); string filename = DocumetGeneration.GenerateDocument(info, documentID); db.AddDocument(info, filename, documentID); bytes = File.ReadAllBytes(filename).ToList(); return(bytes); }