webpack.config.js

const webpack = require('webpack');
const {
  resolve
} = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const Dotenv = require('dotenv-webpack');

module.exports = {
  entry: [
    'babel-polyfill',
    'react-hot-loader/patch',
    'webpack-dev-server/client?http://localhost:8080',
    'webpack/hot/only-dev-server',
    resolve(__dirname, 'src') + '/index.jsx'
  ],
  node: {
    fs: "empty"
  },

  output: {
    filename: 'app.bundle.js',
    path: resolve(__dirname, 'build'),
  },

  resolve: {
    extensions: ['.js', '.jsx']
  },

  devtool: '#source-map',
  devServer: {
    hot: true,
    contentBase: resolve(__dirname, 'build')
  },

  module: {
    rules: [{
          test: /\.jsx?$/,
          exclude: /node_modules/,
          use: {
            loader: 'babel-loader',
            options: {
              presets: ['@babel/preset-env', '@babel/preset-react'],
              plugins: ['react-hot-loader/babel',
                '@babel/plugin-proposal-class-properties'
              ]
            }
          }
        },
      {
        test: /\.(png|gif|jp(e*)g|svg)$/,
        use: {
          loader: 'url-loader',
          options: {
            limit: 8000,
            name: 'images/[hash]-[name].[ext]'
          }
        }
      },
      {
        test: /\.css$/,
        use: [
          'style-loader',
          'css-loader'
        ]
      },
    ]
  },

  plugins: [
    new Dotenv(),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin(),
    new HtmlWebpackPlugin({
      template: 'template.ejs',
      appMountId: 'react-app-root',
      title: 'Coding-Against-Humility',
      filename: resolve(__dirname, "build", "index.html"),
    }),
  ]
};