webpack.config.js

const path = require('path');

const HtmlWebpackPlugin = require('html-webpack-plugin');
const DotEnv = require('dotenv-webpack');
const htmlWebpackPlugin = new HtmlWebpackPlugin({
  template: './src/index.html',
  filename: './index.html',
  favicon: './src/favicon.ico',
});
const dotEnvPlugin = new DotEnv({
  systemvars: true,
});

module.exports = {
  mode: 'development',
  entry: './src/index.tsx',
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: ['babel-loader', 'ts-loader'],
        // exclude: /node_modules/,
      },
      {
        test: /\.s?css$/,
        use: ['style-loader', 'css-loader', 'sass-loader'],
        // exclude: /node_modules/
      },
      {
        test: /\.(png|jpe?g|gif|svg)$/i,
        use: 'file-loader',
      },
    ],
  },
  resolve: {
    extensions: ['.tsx', '.ts', '.js'],
  },
  devtool: 'inline-source-map',
  devServer: {
    contentBase: './dist',
    historyApiFallback: true,
  },
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'dist'),
  },
  plugins: [htmlWebpackPlugin, dotEnvPlugin],
};