rollup-loader

0.3.0 verified Mon Apr 27 auth: no javascript maintenance

A webpack loader that integrates Rollup into the webpack build pipeline. Version 0.3.0 (latest) allows using Rollup to process JavaScript files before webpack finishes bundling. It accepts custom Rollup plugins and passes the processed result and sourcemaps back to webpack. Useful for leveraging Rollup's tree-shaking and ES module handling within a webpack workflow. No recent updates; appears stable but not actively developed.

Common errors

error Module not found: Error: Can't resolve 'rollup-plugin-memory' in '...' ↓

cause Missing peer dependency rollup-plugin-memory.

fix

npm install rollup-plugin-memory --save-dev

Warnings

breaking rollup-loader depends on rollup-plugin-memory which may have breaking changes. ↓

fix Pin rollup-plugin-memory version or check compatibility.

Install

npm install rollup-loader

yarn add rollup-loader

pnpm add rollup-loader

Imports

rollup-loader

wrong

use: 'rollup-loader' without options object

correct

module.exports = { module: { rules: [{ test: /\.js$/, loader: 'rollup-loader', options: { plugins: [] } }] } }

Options can be either an array of plugins or a Rollup options object with plugins property.

Quickstart

Shows how to configure webpack to use rollup-loader for .js files, passing rollup plugins via options.

// webpack.config.js
module.exports = {
  module: {
    rules: [
      {
        test: /\.js$/,
        loader: 'rollup-loader',
        options: {
          plugins: [] // Add rollup plugins here
        }
      }
    ]
  }
};