Comment by mands
We've just moved to GraphQL after using REST and bog-standard RPC, and it's been a breath of fresh air. I was considering building my own HTTP RPC system, similar to json-rpc or open-rpc, but I would have ended up with a poorly-specified GraphQL clone.
I think GraphQL's biggest issue is a naming and positioning problem. I, along with colleagues, thought for a long time that it was tied to graphs, DB query languages, and heavy backend implementations.
It's actually a typed RPC system designed for Client UIs, including SPAs and mobile. We're using it with a monolith in a code-first manner, where the schema and client code are auto-generated from backend types.
I think the project could benefit from a `graphql-lite` / `graphql-full` split, where `-lite` includes a well-documented, leaner core featureset (RPC, simple resolvers), and full mode includes federation.