rollup.config.js

import dts from 'rollup-plugin-dts';
import esbuild from 'rollup-plugin-esbuild';
import { nodeResolve } from '@rollup/plugin-node-resolve';
import typescript from '@rollup/plugin-typescript';
import json from '@rollup/plugin-json';
import commonjs from '@rollup/plugin-commonjs';

const name = require('./package.json').main.replace(/\.js$/, '')

const bundle = config => ({
  ...config,
  input: './src/index.ts',
});

export default [
  bundle({
    plugins: [esbuild.default(), nodeResolve(), typescript(), json(), commonjs(), esbuild.minify()],
    output: [
      {
        file: `${name}.js`,
        format: 'cjs',
        sourcemap: true,
      },
      {
        file: `${name}.mjs`,
        format: 'es',
        sourcemap: true,
      },
    ],
  }),
  bundle({
    plugins: [dts.default()],
    output: {
      file: `${name}.d.ts`,
      format: 'es',
    },
  }),
]