KISS

• Database access using DAO/DTO model.

• Mapping done with factory method, used as a method reference.

• Where frontend does simple crud, database may speak json(b) in both directions. (Insert/update/delete and get)

• questionable The return type of all CRUD method is a JSON array, even where only one element is expected. The 'overhead' is '[' +']', which is acceptable. Better stick to REST conventions.

• DELETE returns an empty array, status code 200.

• INSERT returns array containing the inserted element and