I noticed when developing a Single-Page Application that a lot of the backend code seemed to be merely taking requests from the app and reformatting them into d

I noticed when developing a Single-Page Application that a lot of the backend code seemed to be merely taking requests from the app and reformatting them into database queries. It wasn't always clear whether any given piece of processing logic belonged in the frontend or backend code, and trying to manage the contract between the two seemed like unnecessary busywork when there was already a well-designed interface between the backend and the database. In the end this 3-moving-parts design did work, but I wished I had tried something like AWS AppSync[0] which is basically "managed GraphQL". [0] https://aws.amazon.com/appsync/ https://aws.amazon.com/appsync/