rollup.config.mjs

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

const extensions = [
    '.js', '.jsx', '.ts', '.tsx',
];
export default [
    {
        input: './src/index.ts',

        // Specify here external modules which you don't want to include in your bundle (for instance: 'lodash', 'moment' etc.)
        // https://rollupjs.org/guide/en/#external
        external: [],

        plugins: [
            // Allows node_modules resolution
            resolve({ extensions}),

            json(),

            swc(),

            terser(),
        ],
        output: [
            {
                file: pkg.main,
                format: 'cjs',
                sourcemap: true
            }, {
                file: pkg.module,
                format: 'esm',
                sourcemap: true
            }
        ]
    }
];