Setting up Apollo Server with Koa

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This is the Koa integration of GraphQL Server. Apollo Server is a community-maintained open-source GraphQL server that works with many Node.js HTTP server frameworks. Read the docs. Read the CHANGELOG.

npm install apollo-server-koa@rc graphql


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

// Construct a schema, using GraphQL schema language
const typeDefs = gql`
  type Query {
    hello: String

// Provide resolver functions for your schema fields
const resolvers = {
  Query: {
    hello: () => 'Hello world!',

const server = new ApolloServer({ typeDefs, resolvers });

const app = new Koa();
server.applyMiddleware({ app });

app.listen({ port: 4000 }, () =>
  console.log(`🚀 Server ready at http://localhost:4000${server.graphqlPath}`),


GraphQL Server is built with the following principles in mind:

  • By the community, for the community: GraphQL Server’s development is driven by the needs of developers
  • Simplicity: by keeping things simple, GraphQL Server is easier to use, easier to contribute to, and more secure
  • Performance: GraphQL Server is well-tested and production-ready - no modifications needed

Anyone is welcome to contribute to GraphQL Server, just read CONTRIBUTING.md, take a look at the roadmap and make your first PR!

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