apollo/type-defs.js

revolvers.js

// apollo/revolvers.js
export const resolvers = {
  Query: {
    users(_parent, _args, _context, _info) {
      return _context.db
        .collection('users')
        .findOne()
        .then((data) => {
          return data.users
        })
    },
  },
}

schema.js

// apollo/schema.js
import { makeExecutableSchema } from 'graphql-tools'
import { typeDefs } from './type-defs'
import { resolvers } from './resolvers'

export const schema = makeExecutableSchema({
  typeDefs,
  resolvers,
})

type-defs.js

// apollo/type-defs.js
import gql from 'graphql-tag'

export const typeDefs = gql`
  type User {
    id: ID!
    firstName: String!
    lastName: String!
    blog: String
    stars: Int
  }

  type Query {
    users: [User]!
  }
`