Add a CJS tranform for use with ember-cli's `app.import` API.

Downloads in past


2.0.05 years ago6 years agoMinified + gzip package size for ember-cli-cjs-transform in KB


This addon allows importing files that are in the CommonJS format via the standard app.import functionality added in ember-cli 2.16.


ember install ember-cli-cjs-transform


In your ember-cli-build.js file just like the amd transform!
For example, add the following to import some-name's index.js into your build:
app.import('node_modules/some-name/index.js', {
  using: [
    { transformation: 'cjs', as: 'some-name'}

At build time we automatically follow all dependencies (e.g. internal require calls) in the source file, and includes their contents in the final build output.
This means that even for reasonably complicated things, we can app.import the "entry point" files and everything "just" works.
Examples (used while testing functionality):
Bringing in showdown and showdown-highlight for usage (without extra "shim" addon packages!):
app.import('node_modules/showdown/dist/showdown.js', {
  using: [{ transformation: 'cjs', as: 'showdown' }]
app.import('node_modules/showdown-highlight/lib/index.js', {
  using: [{ transformation: 'cjs', as: 'showdown-highlight' }]

There may be cases where you need additional rollup plugins in order to import your CommonJs files. For example, you may need to handle builtin node require statements, i.e.
var path = require('path');

For this, you may want to import the rollup plugin rollup-plugin-node-builtins. In order to do this, include the plugin in your package.json and use the following syntax in your ember-cli-build.js or index.js:
const nodeBuiltins = require('rollup-plugin-node-builtins');

app.import('node_modules/some-name/index.js', {
  using: [
    { transformation: 'cjs', as: 'some-name', plugins: [ nodeBuiltins() ]}

You can include multiple rollup plugins in the array and pass in options via the arguments to your plugin creation function.
app.import('node_modules/some-name/index.js', {
  using: [
      transformation: 'cjs',
      as: 'some-name',
      plugins: [
        plugin2({ option1: "value" })



  • git clone <repository-url> this repository
  • cd ember-cli-cjs-transform
  • yarn install


Running Tests

  • yarn test (Runs ember try:each to test your addon against multiple Ember versions)
  • ember test
  • ember test --server


  • ember build

For more information on using ember-cli, visit https://ember-cli.com/.