webpack.config.js

const { resolve } = require('path');
const webpack = require('webpack')

module.exports = {
	entry: [
	//'react-hot-loader/patch',
    // activate HMR for React

    'webpack-dev-server/client?http://localhost:8080',
    // bundle the client for webpack-dev-server
    // and connect to the provided endpoint

    'webpack/hot/only-dev-server',
    // bundle the client for hot reloading
    // only- means to only hot reload for successful updates


    './index.js'
    // the entry point of our app
	],
	output: {
		filename: 'bundle.js',
		path: resolve(__dirname, 'dist'),
		publicPath: '/'
		// necessary for HMR to know where to load the hot update chunks
	},
	context: resolve(__dirname, 'src'),

	devServer: {
		hot: true,

		contentBase: resolve(__dirname, 'dist'),

		publicPath: '/'
	},

	module: {
		rules: [
			{
				test: /\.js?$/,
				use: [
					'react-hot-loader',
					'babel-loader',
				],
				exclude: /node_modules/
			},
		],
	},

	plugins: [
		new webpack.HotModuleReplacementPlugin(),
	],
};