maxpou / graphql-nodejs-mongodb

app.js

import express from 'express';
import graphqlHTTP from 'express-graphql';
import mongoose from 'mongoose';
mongoose.Promise = global.Promise;

import schema from './graphql';

var app = express();

// GraphqQL server route
app.use('/graphql', graphqlHTTP(req => ({

The parameter req is not used and could be removed.

  schema,
  pretty: true,
  graphiql: true
})));

// Connect mongo database
mongoose.connect('mongodb://localhost/graphql');

// start server
let server = app.listen(4000, function () {
  var host = server.address().address;
  var port = server.address().port;

  console.log('GraphQL listening at http://%s:%s', host, port);

console.log looks like debug code. Are you sure you do not want to remove it?

});

export default server;