webpack.config.js

const webpack = require('webpack');
const path = require('path');
const CopyPlugin = require('copy-webpack-plugin');
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

const config = {
  entry: [ './src/index.js' ],
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js'
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        use: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.scss$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'sass-loader'
        ]
      },
      {
        test: /\.svg$/,
        use: 'file-loader'
      },
      {
        test: /\.png$/,
        use: [
          {
            loader: 'url-loader',
            options: {
              mimetype: 'image/png'
            }
          }
        ]
      }
    ]
  },
  resolve: {
    extensions: [
      '.js',
      '.jsx'
    ],
    alias: {
      'react-dom': '@hot-loader/react-dom',
      '~': path.resolve(__dirname, 'src'),
    }
  },
  devServer: {
    contentBase: path.join(__dirname, 'dist'),
    historyApiFallback: true
  },
  plugins: [
    new CopyPlugin({
      patterns: [{ from: 'src/index.html' }],
    }),
    new BundleAnalyzerPlugin({
      analyzerMode: 'static',
      openAnalyzer: false,
    }),
    new MiniCssExtractPlugin(),
    new webpack.HotModuleReplacementPlugin()
  ]
};

module.exports = config;