Locking dependencies with npm shrinkwrap
The Node.js platform runs npm install
as the
webapp user each time you deploy. When new versions of your
dependencies are available, they're installed when you deploy your application, potentially
causing the deployment to take a long time.
You can avoid upgrading dependencies by creating an npm-shrinkwrap.json
file
that locks down your application's dependencies to the current version.
$ npm install
$ npm shrinkwrap
wrote npm-shrinkwrap.json
Include this file in your source bundle to ensure that dependencies are only installed once.