Query.js

const Query = new GraphQLObjectType({
  name: 'Query',
  //our server can return pokemon and moves. 
  fields: {
    pokemon: {
      type: pokemonType, //the type we defined earlier
      args: {
        id: {type: GraphQLString} //an id can be passed in to the query to select the pokemon needed.
      },
      resolve: (_,args) => data[args.id], //uses the id as a key to fulfill the request. Note that if there's no id passed in,
      //null will be returned. In practice, you may wish to throw an exception or handle this error in some manner.
    },
    move: {
      type: moveType,
      args: {
        id: {type: GraphQLString}
      },
      resolve: (_,args) => moves[args.id],
    },
  }
});