Apollo Server Cloudflare worker deployment

index.js

const { ApolloServer, gql } = require('apollo-server-cloudflare')
const {
  graphqlCloudflare,
} = require('apollo-server-cloudflare/dist/cloudflareApollo')

const typeDefs = gql`
  type Query {
    hello: String
  }
`

const resolvers = {
  Query: {
    hello: () => 'Hello world!',
  },
}

const server = new ApolloServer({
  typeDefs,
  introspection: true,
  resolvers,
})

addEventListener('fetch', event => {
  event.respondWith(
    graphqlCloudflare(() => {
      return server.createGraphQLServerOptions(event.request)
    })(event.request)
  )
})

webpack.config.js

const path = require('path')
module.exports = {
  target: 'webworker',
  resolve: {
    alias: {
      fs: path.resolve(__dirname, './null.js'), // module.exports = {}
      busboy: path.resolve(__dirname, './null.js'),
    },
  },
  mode: 'production',
  optimization: {
    usedExports: true,
  },
}