rollup.config.mjs

import typescript from '@rollup/plugin-typescript';
import commonjs from '@rollup/plugin-commonjs';
import resolve from '@rollup/plugin-node-resolve';
import pkg from './package.json' assert { type: "json" };
import json from '@rollup/plugin-json';

export default {
  input: 'src/index.ts',
  output: [
    {
      file: pkg.main,
      format: 'cjs',
      sourcemap: true
    },
    {
      file: pkg.module,
      format: 'esm',
      sourcemap: true
    }
  ],
  external: [...Object.keys(pkg.peerDependencies || {})],
  plugins: [
    json(),
    resolve(),
    commonjs(),
    typescript({
      tsconfig: './tsconfig.json',
      declaration: true,
      declarationDir: 'dist'
    })
  ]
}