webpack.config.js

// webpack.config.js
const path = require('path')
const NodePolyfillPlugin = require('node-polyfill-webpack-plugin')

module.exports = {
  target: 'node', // Ensure the code is compiled for Node.js
  mode: 'none', // this leaves the source code as close as possible to the original (when packaging we set this to 'production')
  entry: './src/extension.ts', // Your entry file
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'extension.js',
    libraryTarget: 'commonjs2'
  },
  externals: {
    vscode: 'commonjs vscode' // Exclude the vscode module
  },
  resolve: {
    extensions: ['.ts', '.js'],
    fallback: {
      fs: false,
      path: require.resolve('path-browserify'),
      crypto: require.resolve('crypto-browserify'),
      stream: require.resolve('stream-browserify'),
      assert: require.resolve('assert/'),
      http: require.resolve('stream-http'),
      https: require.resolve('https-browserify'),
      os: require.resolve('os-browserify/browser'),
      url: require.resolve('url/'),
      zlib: require.resolve('browserify-zlib')
    }
  },
  plugins: [new NodePolyfillPlugin()],
  module: {
    rules: [
      {
        test: /\.ts$/,
        loader: 'ts-loader',
        options: {
          compilerOptions: {
            module: 'es6'
          }
        }
      }
    ]
  }
}