Express router, graphql, GCP cloud function

main.js

import express from 'express';
import graphqlHTTP from 'express-graphql';
import { buildSchema } from 'graphql';

const router = express.Router();

const schema = buildSchema(`
    type Query {
        hello: String
    }`);

const rootValue = { hello: () => 'Hello world students!' };

router.get(
  '/',
  graphqlHTTP({
    schema,
    rootValue,
    graphiql: true,
  }),
);

router.post(
  '/',
  graphqlHTTP(() => {
    const startTime = Date.now();
    return {
      schema,
      rootValue,
      graphiql: false,
      extensions() {
        return { runTime: `${Date.now() - startTime} ms` };
      },
    };
  }),
);


const test = router;

export { test };

Run through webpack and babel-es2015 to ensur e you dont hit issues with node 6 thats default , this year in 2017

//webpack.config.js
const path = require('path');
const webpack = require('webpack');
const fs = require('fs');

const nodeModules = {};
fs.readdirSync('node_modules')
  .filter(x => ['.bin'].indexOf(x) === -1)
  .forEach((mod) => {
    nodeModules[mod] = `commonjs ${mod}`;
  });

module.exports = {
  entry: './src',
  target: 'node',
  devtool: 'source-map',
  output: {
    path: path.resolve(__dirname, 'build'),
    filename: 'index.bundle.js',
    libraryTarget: 'this',
  },
  externals: nodeModules,
  plugins: [
    new webpack.BannerPlugin({
      banner: 'require("source-map-support").install();',
      raw: true,
      entryOnly: false,
    }),
  ],
  module: {
    loaders: [{
      test: /\.js$/,
      loader: 'babel-loader',
      query: {
        presets: ['es2015'],
      },
    }],
  },
  stats: {
    colors: true,
  },
};

The current web-pack config.

test locally with

const express = require('express');

const app = express();

const { test } = require('./index.bundle.js');

app.use(test);
app.listen(3000, () => {
  console.log('Cool app listening on port 3000!');
});

Put this beside the build folder where your output is.