webpack.config.js

const webpack = require('webpack');
const path = require('path');

module.exports = {
  entry: './src/index.ts',
  mode: 'production',
  module: {
    rules: [
      {
        test: /\.ts?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
    ],
  },
  target: 'web',
  resolve: {
    extensions: ['.ts', '.js'],
    fallback: {
      stream: require.resolve('stream-browserify'),
      querystring: false,
    },
  },
  plugins: [
    new webpack.ProvidePlugin({
      process: 'process/browser',
    }),
    new webpack.ProvidePlugin({
      Buffer: ['buffer', 'Buffer'],
    }),
  ],
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'lib.js',
    libraryTarget: 'umd',
  },
};