webpack.config.js

/**
 * Created by Dima on 2/23/2017.
 */
const webpack = require('webpack');
let fs = require('fs');
const path = require('path');

var nodeModules = {};
fs.readdirSync('node_modules')
    .filter(function (x) {
        return ['.bin'].indexOf(x) === -1;
    })
    .forEach(function (mod) {
        nodeModules[mod] = 'commonjs ' + mod;
    });

var nodeExternals = require('webpack-node-externals');

module.exports = {
    target: 'node',
    externals: [nodeExternals(), nodeModules],
    entry: path.resolve(__dirname, 'src/index.js'),
    output: {
        filename: 'bundle.js'
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                exclude: /(node_modules)/,
                use: [
                    {
                        loader: 'babel-loader',
                        query: {
                            presets: ['es2015']
                        }
                    }
                ]
            }
        ]
    }
};