webpack.config.js

const webpack = require('webpack')
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const dotenv = require('dotenv').config();

module.exports = {
  resolve: {
    extensions: ['.js', '.jsx']
  },
  
  entry: './src/index.jsx',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'dist/'),
    publicPath: '/'
  },
  module: {
    rules: [
      {
        test: /(\.js|jsx)$/,
        exclude: /node_modules/,
        loader: 'babel-loader'
      },
      {
        test: /\.css$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader
          },

          {
            loader: "css-loader",
            options: {
              sourceMap: true,
              modules: true,
              localIdentName: "[local]___[hash:base64:5]"
            }
          },
        ]
      }
    ]
  },

  devServer: {
    port: 3000,
    stats: { colors: true },
    inline: true
  },

  plugins: [
    new HtmlWebpackPlugin({ template: './src/assets/index.html' }),
    new MiniCssExtractPlugin(),
    new webpack.DefinePlugin({
      "process.env": JSON.stringify(dotenv.parsed)
    }),
  ]
}