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var pkgInstall = require("pkg-install")

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pkg-install v1.0.0

A wrapper making installation of Node.js packages from code easier

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Easier installation of Node.js packages irrespective of the platform or package manager.

  • Supports npm and yarn
  • Easy to use promise-based API
  • Uses execa under the hood


npm install pkg-install


Install a set of known dependencies to a project

const { install } = require('pkg-install');

(async () => {
  const { stdout } = await install(
      twilio: '^3.1',
      'node-env-run': '~1',
      'pkg-install': undefined,
      dev: true,
      prefer: 'npm',

Run a project install of dependencies

const { projectInstall } = require('pkg-install');

(async () => {
  const { stdout } = await projectInstall({
    prefer: 'yarn',


Full documentation of available functions and configuration can be found on:

Known Issues

1. Disparity in supported flags

At the current moment yarn has no equivalent flags for --save-bundle or --no-save. These will be ignored when yarn has been detected as package manager.

The flags that were ignored in the run are returned as the ignoredFlags property.

2. Different behavior of modifying package.json

This library uses npm and yarn under the hood and currently npm install and yarn add have different behaviors when passing versions to the package names

For example

npm install twilio^3.1 node-env-run~1 pkg-install

Will result in the following dependencies in the package.json:

"dependencies": {
  "node-env-run": "^1.0.1",
  "pkg-install": "^0.1.1",
  "twilio": "^3.28.1"


yarn add twilio@^3.1 node-env-run@~1 pkg-install

Will result in the following dependencies in the package.json:

"dependencies": {
  "node-env-run": "~1",
  "pkg-install": "^0.1.1",
  "twilio": "^3.1"




Thanks goes to these wonderful people (emoji key):

Dominik Kundel
Dominik Kundel


This project follows the all-contributors specification. Contributions of any kind welcome!

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