2/node_modules/apollo-server-express

This is the Express and Connect 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-express graphql

Express

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

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 = express();
  server.applyMiddleware({ app });

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

Connect

We recommend using express rather than connect. However, if you wish to use connect, please install connect and qs-middleware, in addition to apollo-server-express.

npm install --save connect qs-middleware apollo-server-express graphql

const connect = require('connect');
const { ApolloServer, gql } = require('apollo-server-express');
const query = require('qs-middleware');

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 = connect();
  const path = '/graphql';

  app.use(query());
  server.applyMiddleware({ app, path });

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

Note: qs-middleware is only required if running outside of Meteor

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!