graphql-schema-validation 0.1.3

A spec compliant implementation of GraphQL SDL schema validation
Documentation
interface A {
  id: ID!
}

interface B {
  name: String
}


type Test implements A & AND & B {
  id: ID!
  name: String
}

type Test2 implements A & B & B & A {
  id: ID!
  name: String
}

type Test3 implements Test {
  id: ID!
}