webpack.production.js

var webpack  			= require('webpack');
var path				= require('path');
var HtmlWebpackPlugin 	= require('html-webpack-plugin');

module.exports = {	
	devtool: 'source-map',
	devServer: {
		historyApiFallback: true, // This will make the server understand "/some-link" routs instead of "/#/some-link"
	},
	entry: [
		'./src/scripts' // This is where Webpack will be looking for the entry index.js file
	],
	output: {
		path: path.join(__dirname, 'build'), // This is used to specify folder for producion bundle
		filename: 'bundle.js', // Filename for production bundle
		publicPath: '/'
	},
	resolve: {
		modules: [
			'node_modules', 
			'src',
			path.resolve(__dirname, 'src/scripts'),
			path.resolve(__dirname, 'node_modules')
		], // Folders where Webpack is going to look for files to bundle together
		extensions: ['.jsx', '.js'] // Extensions that Webpack is going to expect
	},
	module: {
		// Loaders allow you to preprocess files as you require() or “load” them. 
		// Loaders are kind of like “tasks” in other build tools, and provide a powerful way to handle frontend build steps.
		loaders: [
			{
				test: /\.jsx?$/, // Here we're going to use JS for react components but including JSX in case this extension is preferable
				include: [
					path.resolve(__dirname, "src"),
				],
				loader: ['react-hot-loader']
			},
			{
				loader: "babel-loader",

				// Skip any files outside of your project's `src` directory
				include: [
					path.resolve(__dirname, "src"),
				],

				// Only run `.js` and `.jsx` files through Babel
				test: /\.jsx?$/,

				// Options to configure babel with
				query: {
					plugins: ['transform-runtime'],
					presets: ['es2015', 'stage-0', 'react'],
				}
			}
		]
	},
	plugins: [
		new webpack.NoEmitOnErrorsPlugin(), // Webpack will let you know if there are any errors

		// Declare global variables
		new webpack.ProvidePlugin({
			React: 'react',
			ReactDOM: 'react-dom',
			_: 'lodash'
		}),

	    new HtmlWebpackPlugin({
	        filename: 'index.html',
	        template: './src/index.html',
	        hash: true
	    }),

	    new webpack.optimize.UglifyJsPlugin({
            compress: {
                warnings: false
            },
            sourceMap: true
        }),
	]
}