Having trouble getting up and running with GraphQL... Hmmm...

schema.js

const graphql = require('graphql')
const _ = require('lodash')
// I don't really know what this does tho 
const {
  GraphQLObjectType,
  GraphQLString,
  GraphQLInt,
  GraphQLSchema
} = graphql

const users = [
  { id: '24', firstName: 'Kanye', age: 40 },
  { id: '224', firstName: 'Dilraj', age: 20 }
]

const UserType = new GraphQLObjectType({
  name: 'User',
  fields: {
    id: { type: GraphQLString },
    firstName: { type: GraphQLString }, 
    age: { type: GraphQLInt }
  }
})

const RootQuery = new GraphQLObjectType({
  name: 'RootQueryType', 
  fields: {
    user: {
      type: UserType,       args: { id: { type: GraphQLString } },             resolve(parentValue, args){
        return _.find(users, {id: args.id })
      }
    }
  }
})

module.exports = new GraphQLSchema ({
  query: RootQuery,
})