Nexus
Code-First, Type-Safe, GraphQL Schema Construction
... on the graphql-js library. Whatever you can do with graphql-js or apollo-tools, you can do with Nexus. Automatically generates and infers types based on the schema. No need to manually add annotations, Nexus can automatically infer them in TypeScript using global declaration merging and conditional type inference. For association type fields, you can either import types you've created, or supply their names as strings, with free autocomplete.