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Heroku Buildpack for npm Authentication

This is a Heroku buildpack that enables authenticated npm operations within a Heroku dyno.

It detects an NPM_AUTH_TOKEN environment variable and creates a .npmrc file.

It is the soul sister of the GitHub Buildpack.

See the blog post: npm and GitHub automation with Heroku

Usage

Use this one-liner to read your npm auth token:

cat ~/.npmrc | head -1 | sed 's/.*=//g'

Save the token in your Heroku app config:

heroku config:set NPM_AUTH_TOKEN=YOUR_TOKEN_HERE

Configure your app to use this buildpack:

heroku buildpacks:add --index 1 zeke/npm

The next time you push your app to Heroku, this buildpack will create a .npmrc file containing your npm token in the base directory of the app:

heroku run bash
cat .npmrc
//registry.npmjs.org/:_authToken=00000000-0000-0000-0000-000000000000

Now you can perform authenticated npm operations on the dyno, including npm publish!

Tips

Tip: If you ever change the token, you'll need to redeploy the app to ensure a new .netrc file is created:

heroku config:set NPM_AUTH_TOKEN=NEW_TOKEN
git commit --allow-empty -m "update dat npm token"
git push heroku master

Tip: Heroku's node buildpack will install dependencies from package.json by default. If your app needs devDependencies to be installed too, set the following in your app environment:

heroku config:set NPM_CONFIG_PRODUCTION=false

Using the latest source code

The zeke/npm buildpack from the Heroku Buildpack Registry represents the latest stable version of the buildpack. If you'd like to use the source code from this Github repository, you can set your buildpack to the Github URL:

$ heroku buildpacks:set https://github.com/nice-registry/npm-buildpack

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☁️ Heroku Buildpack for npm Authentication

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