app.js

var express = require('express'),
    path = require('path'),
    cookieParser = require('cookie-parser'),
    bodyParser = require('body-parser'),
    consolidate = require('consolidate'),
    routes = require('./routes/index'),
    config = require('./config');

const webpack = require('webpack');
const webpackMiddleware = require('webpack-dev-middleware');
const wpConfig = require('./webpack.config.js');
const webpackHotMiddleware = require('webpack-hot-middleware');

var app = express();

app.engine('dust', consolidate.dust);
app.set('view engine', 'dust');
app.set('views', './src');

app.use(bodyParser.json());

app.use('/server', routes);

app.set('port', process.env.PORT || 9090);

const isDeveloping = process.env.NODE_ENV !== 'production';
console.log("in dev mode", isDeveloping)
console.log("in prod mode", !isDeveloping)

const port = isDeveloping ? 9090 : process.env.PORT;

if (isDeveloping) {
    const compiler = webpack(wpConfig);
    const middleware = webpackMiddleware(compiler, {
        publicPath: wpConfig.output.publicPath,
        contentBase: 'src',
        stats: {
            colors: true,
            hash: false,
            timings: true,
            chunks: false,
            chunkModules: false,
            modules: false
        }
    });

    app.use(middleware);
    app.use(webpackHotMiddleware(compiler));
    app.get('*', function response(req, res) {
        res.write(middleware.fileSystem.readFileSync(path.join(__dirname, 'dist/index.html')));
        res.end();
    });
} else {
    app.use(express.static(__dirname + '/dist'));
    app.get('*', function response(req, res) {
        res.sendFile(path.join(__dirname, 'dist/index.html'));
    });
}

var server = app.listen(app.get('port'), function() {
    console.log('Express server listening on port ' + server.address().port);
});

module.exports = app;