Ruby is amazing. I recently built a layer on top of Rails that can generate an API from a single markdown file. I did the same thing in python but it was much harder and JavaScript would have been a beast. Ruby can meta program like nothing else.
We created an Abstract controller that handles all of the typical behavior for a resource, auth, filtering, pagination, tenancy, import/export, serialization etc.
Then we expanded rails generators to cover ALL typical behavior. And the markdown file calls the generators.
It was a bit complicated to model polymorphic behavior but we got it working thanks to Ruby/Rails.
But the basic premise that made this work is: Use only restful actions; don’t turn it into RPC.
Recognize that most RPC/graphql functions are state changes that could have been a patch request. So instead of /clients/activate its /clients with a status attribute for “activate” or “archive”. Then most nested routes aren’t needed, use accepts nested attributes for and return child ids in the show action. There’s more to it that this but by strictly following conventions and modeling the data for rest, the api ends up
Super simple.
Our standard controller only whitelists strong params. All other behavior is automatic.
Lisp is the cleanest language out there! It has one construct: parentheses. It's simpler than Ruby.
Wrt "forgetting" parentheses, the Lisp people have ways around that: they set up their editors so they operate on the expressions and can't "forget" a paren. They operate on the logical blocks (which is easy (because of the parentheses)).
