esm-config

library1.1.0jsnpmunverified

esm-config is a utility (v1.1.0) that transforms ES module configuration files to CommonJS using Rollup. It allows projects to use import/export syntax in config files (e.g., rollup.config.js, webpack.config.js) without Node.js native ESM support. The package has no release cadence; it's a small library that relies on a modified version of Rollup's internal loadConfigFile function. Compared to alternatives like @babel/register or esm, it focuses specifically on config loading and integrates Rollup's bundling.

devops http-networking

npm install esm-config

github ↗package ↗

INSTALL

IMPORT

SIG · ESM-CONFIG

esm-config

devopsjavascriptv1.1.0

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–223 runs

build_error

glibc

node 18–223 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ const esmConfig = require('esm-config')

✗ import esmConfig from 'esm-config'

Package is CJS-only, no ESM export. Use require().

Loads an ES module config file and transforms it to CJS for use in Node.js.

const esmConfig = require('esm-config'); const config = esmConfig('/path/to/config.js'); console.log(config);

Debug

Known issues

gotcharequire('esm-config') returns a function, not an object with named exports.

fix

Use const esmConfig = require('esm-config') directly.

affects: >=1.0.0

deprecatedThe package uses rollup internally; ensure rollup peer dependency is installed.

fix

npm install rollup@^1.17.0 --save-dev

affects: >=1.0.0

Errors

Common errors & fixes

Error: Cannot find module 'rollup'

Missing peer dependency rollup.

fix

npm install rollup@^1.17.0

TypeError: esmConfig is not a function

Incorrect import using ES module syntax instead of require.

fix

Use const esmConfig = require('esm-config')

Upgrade

Version history

1.1.0latest on npm

Audit

Dependencies

rolluprequiredPeer dependency for transforming ESM to CJS

Agent activity

5 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/ocjojo/esm-config ↗

packagehttps://www.npmjs.com/package/esm-config ↗