rollup.config.js

import resolve from "rollup-plugin-node-resolve"
import commonjs from "rollup-plugin-commonjs"
import sourceMaps from "rollup-plugin-sourcemaps"
import typescript from "rollup-plugin-typescript2"
import { uglify } from "rollup-plugin-uglify"
import pkg from "./package.json"

export default [
  {
    input: "src/index.ts",
    output: [
      // browser-friendly UMD build
      { file: pkg.browser, format: "umd", name: "datasources" },
      // NodeJS build & build for bundled projects
      { file: pkg.main, format: "cjs" },
      { file: pkg.module, format: "es" },
    ],
    plugins: [
      // Compile TypeScript files
      typescript(),
      // Allow node_modules resolution, so you can use 'external' to control
      // which external modules to include in the bundle
      // https://github.com/rollup/rollup-plugin-node-resolve#usage
      resolve(),
      // Allow bundling cjs modules (unlike webpack, rollup doesn't understand cjs)
      commonjs(),
      // Resolve source maps to the original source
      sourceMaps(),
    ],
  },
  {
    input: "src/index.ts",
    output: [
      // browser-friendly UMD build
      { file: "dist/datasources.umd.min.js", format: "umd", name: "datasources" },
    ],
    plugins: [
      // Compile TypeScript files
      typescript(),
      // Allow node_modules resolution, so you can use 'external' to control
      // which external modules to include in the bundle
      // https://github.com/rollup/rollup-plugin-node-resolve#usage
      resolve(),
      // Allow bundling cjs modules (unlike webpack, rollup doesn't understand cjs)
      commonjs(),
      uglify(),
    ],
  },
]