Sample Apollo-Server w/Express

index.js

import express from 'express';
import bodyParser from 'body-parser';
import { graphqlExpress, graphiqlExpress } from 'apollo-server-express';
import schema from './schema.js'

const PORT = 3000;

const app = express();
console.log('calling app.js');
// bodyParser is needed just for POST.
app.use('/graphql', bodyParser.json(), graphqlExpress({ schema: schema }));
app.use('/graphiql', graphiqlExpress({ endpointURL: '/graphql' }));

app.get('/', function (req, res) {
    res.send('Hello World!')
});
app.listen(PORT, () => console.log(
    `GraphiQL is now running on http://localhost:${PORT}/graphiql`
));