graphql.js

const graphql = require('graphql')
const fruits = require('./fruits.json')

let vitaminsType = new graphql.GraphQLObjectType({
  name: 'Vitamins',
  fields: {
    name: {
      type: graphql.GraphQLString
    },

  }
})

let fruitType = new graphql.GraphQLObjectType({
  name: 'Fruit',
  fields: {
    id: {
      type: new graphql.GraphQLNonNull(graphql.GraphQLInt)
    },
    name: {
      type: new graphql.GraphQLNonNull(graphql.GraphQLString)
    },
    color: {
      type: graphql.GraphQLString
    },
    vitamins: {
      type: new graphql.GraphQLList(vitaminsType)
    }
  }
})

let schema = new graphql.GraphQLSchema({
  query: new graphql.GraphQLObjectType({
    name: 'Query',
    fields: {
      fruit: {
        type: fruitType,
        args: {
          id: {
            type: graphql.GraphQLInt
          }
        },
        resolve: function(_, args) {
          let response = fruits.find(function(user) {
            return (user.id === args.id)
          })
          return response
        }
      }
    }
  })
})
module.exports = schema