[danpalmer]

GraphQL costs a lot more to do, but also gives you a lot more.

Just some benefits we've seen:

- Automatic codegen in the client removes a lot of boilerplate.

- Verification of schemas in CI makes sure we don't "go backwards" on the API inadvertently.

- Documentation tooling that makes it easy to show API structure.

- Easy to generate schemas automatically from underlying data models in the backend service (database tables, ORM models, enums, etc).

- Great type safety compared to JSON over HTTP.