schema-directives-using-directives.js

import { makeExecutableSchema } from "graphql-tools";
import { UniqueIdDirective } from "anyone-could-implement-this-package";

const typeDefs = `
type Query {
  people: [Person]
}

# This hypothetical type uses both the "Person" type name and the value
# of the personID field to synthesize a globally unique ID field:
type Person @uid(from: "personID") {
  personID: Int
  name: String
}`;

const schema = makeExecutableSchema({
  typeDefs,
  schemaDirectives: {
    uid: UniqueIdDirective
  }
});