Publish to NPM registry
In this how-to guide, you will learn how to configure CircleCI to publish to the NPM registry.
Introduction
Setting up CircleCI to publish packages to the npm registry makes it easy for project collaborators to release new package versions in a consistent and predictable way.
1. Obtain the npm authToken
Obtain the npm authToken for the account that you wish to use to publish the package. You can do that by logging in to npm (npm login
). This will save the authToken to the ~/.npmrc
file. Look for the following line:
//registry.npmjs.org/:_authToken=00000000-0000-0000-0000-000000000000
In this case, the authToken is 00000000-0000-0000-0000-000000000000
.
2. Set NPM token
Go to your project settings, and set the NPM_TOKEN
variable to the obtained authToken.
3. Configure CircleCI
Configure CircleCI to add the authToken to ~/.npmrc
, run npm publish
and only for versioned tags:
version: 2.1
jobs:
publish:
docker:
- image: <docker-image-name-tag>
steps:
- checkout
- run:
name: Publish to NPM
command: |
npm set //registry.npmjs.org/:_authToken=$NPM_TOKEN
npm publish
workflows:
tagged-build:
jobs:
- publish:
filters:
tags:
only: /v[0-9]+(\.[0-9]+)*/
4. Create a new version
When you want to publish a new version to npm, run npm version
to create a new version:
npm version 10.0.1
This will update the package.json
file and creates a tagged Git commit. Next, push the commit with tags:
git push --follow-tags
5. Publish
If tests passed, CircleCI will publish the package to npm automatically.
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