apollo-server-koa

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 graphql

Koa

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

async function startApolloServer() {
  // 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 });
  await server.start();

  const app = new Koa();
  server.applyMiddleware({ app });
  // alternatively you can get a composed middleware from the apollo server
  // app.use(server.getMiddleware());

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

Principles

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!