babel.config.js

/*
 * Copyright OpenSearch Contributors
 * SPDX-License-Identifier: Apache-2.0
 */

// babelrc doesn't respect NODE_PATH anymore but using require does.
// Alternative to install them locally in node_modules
module.exports = function (api) {
  // ensure env is test so that this config won't impact build or dev server
  if (api.env('test')) {
    return {
      presets: [
        require('@babel/preset-env'),
        require('@babel/preset-react'),
        require('@babel/preset-typescript'),
      ],
      plugins: [
        [require('@babel/plugin-transform-runtime'), { regenerator: true }],
        require('@babel/plugin-transform-class-properties'),
        require('@babel/plugin-transform-object-rest-spread'),
        [require('@babel/plugin-transform-modules-commonjs'), { allowTopLevelThis: true }],
      ],
    };
  }
  return {};
};