Grpc is the future, I'm amazed that nobody seems to be using it. Easy endpoint definitions and code generation in almost every popular language. Much faster than REST and zero boilerplate code. The client libraries even have http baked in so no "controllers" or route mapping to write. It's simply fantastic.
If you run into a language without grpc support you just standup a JSON proxy and pretend it's REST.
If you run into a language without grpc support you just standup a JSON proxy and pretend it's REST.