create-react-ssr/webpack.config.dev.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const { config: { portDev, portReloadDev } } = require('./src/config')


module.exports = {
    entry: './src/index.js',
    output: {
        path: path.resolve(__dirname, 'build'),
        filename: 'bundle.js',
    },
    resolve: {
        extensions: ['.js', '.jsx'],
    },
    mode: 'development',
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                exclude: /node_modules/,
                use: {
                    loader: 'babel-loader',
                },
            },
            {
                test: /\.html$/,
                use: [
                    { loader: 'html-loader' }
                ],
            },
            {
                test: /\.s[ac]ss$/,
                use: [
                    'style-loader',
                    'css-loader',
                    'sass-loader',
                ] 
            },
        ]
    },
    plugins: [
        new HtmlWebpackPlugin({
            template: './public/index.html',
            filename: './index.html',
        }),
        new MiniCssExtractPlugin({
            filename: '[name].css',
        }),
    ],
    devServer: {
        static: {
            directory: path.join(__dirname, 'dist')
        },
        allowedHosts: "all",
        compress: true,
        port: portDev,
        hot: true,
        client: {
            reconnect: true,
            webSocketURL: {
                port: portReloadDev ? portReloadDev : portDev,
            }
        },
    },
}