rollup.config.js

// import resolve from 'rollup-plugin-node-resolve'
import babel from 'rollup-plugin-babel';
import commonjs from 'rollup-plugin-commonjs';
import { terser } from 'rollup-plugin-terser';
import * as meta from './package.json';

const config = {
  input: 'src/index.js',
  external: ['base64-js', 'case', 'google-protobuf'],
  output: {
    file: `dist/${meta.name}.js`,
    name: meta.name,
    format: 'umd',
    exports: 'named', /** Disable warning for default imports */
    indent: false,
    extend: true,
    globals: {
      'base64-js': 'base64-js',
      case: 'case',
      'google-protobuf': 'goog',
    },
  },
  plugins: [
    // resolve()
    commonjs(),
    babel({
      exclude: 'node_modules/**',
      presets: [
        [
          '@babel/env',
          {
            modules: false,
            targets: {
              browsers: '> 1%, IE 11, not op_mini all, not dead',
              node: 8,
            },
            // useBuiltIns: 'usage'
          },
        ],
      ],
    }),
  ],
};

export default [
  config,
  {
    ...config,
    output: {
      ...config.output,
      compact: true,
      file: `dist/${meta.name}.min.js`,
    },
    plugins: [
      ...config.plugins,
      terser(),
    ],
  },
];