webpack-dev-server.config.js

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

module.exports = {
    entry: './src/index.js',
    output: {
        path: './dist',
        filename: 'bundle.js'
    },
    resolve: {
        extensions: ['', '.js']
    },
    devServer: {
        contentBase: './build',
        outputPath: './build',
        devtool: 'eval',
        hot: true,
        inline: true,
        port: 15566,
        host: '0.0.0.0'
    },
    module: {
        loaders: [
            {
                test: /\.jsx?$/,
                exclude: /(node_modules)/,
                loaders: ['babel'] // 'babel-loader' is also a legal name to reference
            },
            {
                test: /\.css$/,
                loaders: ['style', 'css']
            }
        ]
    },
    plugins: [
        new webpack.HotModuleReplacementPlugin(),
        new HtmlWebpackPlugin({
            template: 'index.html'
        })
    ]
};