webpack.client.js

const path = require('path');
const webConfig = require('./src/webConfig');

module.exports = {
    // Tell webpack the root file of our
    // server application
    entry: ['./src/client/client.js', './src/assets/scss/styles.scss'],

    // Tell webpack where to put the output file
    // that is generated
    output: {
        filename: 'client_bundle.js',
        path: path.resolve(__dirname, 'build'),
        publicPath: '/build'
    },

    module: {
        rules: [
            {
                test: /\.js?$/,
                loader: 'babel-loader',
                exclude: '/node_modules/',
                options: {
                    presets: [
                        'react', 'stage-0', ['env', {
                            target: { browsers: ['last 2 versions']}
                        }]
                    ]
                }
            },
            {
                test: /\.scss$/,
                use: [
                    {
                        loader: 'file-loader',
                        options: {
                            name: '[name].min.css',
                            outputPath: 'assets/css/'
                        }
                    },
                    {
                        loader: 'extract-loader'
                    },
                    {
                        loader: 'css-loader',
                        options: {
                            minimize: true,
                            url: true,
                            root: webConfig.siteURL
                        }
                    },
                    {
                        loader: 'sass-loader'
                    }
                ]
            }
        ]
    }

};