Backend. Js reasoning

require('dotenv').config(); // Load environment variables

const { ApolloServer, gql } = require('apollo-server');

// Sample type definitions and resolvers

const typeDefs = gql`

  type Recipe {

    id: ID!

    title: String!

  }

  type Query {

    recipes: [Recipe!]!

  }

`;

const resolvers = {

  Query: {

    recipes: () => [

      { id: "1", title: "Spaghetti Bolognese" },

      { id: "2", title: "Chicken Curry" },

    ],

  },

};

const server = new ApolloServer({

  typeDefs,

  resolvers,

  introspection: true,

  playground: true,

  apollo: {

    key: process.env.APOLLO_KEY,

  },

});

server.listen().then(({ url }) => {

  console.log(`Server ready at ${url}`);

});