text: const { gql } = require('apollo-server-express');
  
  const typeDefs = gql`
    type User {
      id: ID!,
      name: String
    }
  
    type Query {
      hello: String,
      getUser( id: ID ): User
      getUsers: [ User ]
    }
  
    type Mutation {
      addUser( name: String ): User
      updateUser( id: ID, name: String ): User
    }
  `;
  
  module.exports = typeDefs;
  