Publishing to npm Using AppVeyor

AppVeyor does not currently provide built-in support for publishing to npm (at least, currently). Instead, we can provide the npm token as an AppVeyor UI configured environment variable and run npm pack and npm publish.

Setup environment variable

In the AppVeyor web application, add an NPM_TOKEN environment variable using a token retrieved from https://www.npmjs.com/. Be sure to encrypt this token in AppVeyor!

AppVeyor configuration in repository

Add or update the AppVeyor configuration using the following example:

appveyor.yml

environment:
  matrix:
    - nodejs_version: STABLE
      configuration: publish
    - nodejs_version: LTS

install:
  - ps: Install-Product node $env:nodejs_version

before_build:
  # Output useful info for debugging.
  - node --version
  - npm --version

build_script:
  - ./build.cmd

cache:
  - node_modules -> package.json
  - '%APPDATA%\npm-cache'

test: off

deploy_script:
  - ps: |
      if ($ENV:CONFIGURATION -eq "publish")
      {
        "//registry.npmjs.org/:_authToken=`$`{NPM_TOKEN`}" | Out-File (Join-Path $ENV:APPVEYOR_BUILD_FOLDER ".npmrc") -Encoding UTF8
        iex "npm pack"
        iex "npm publish"
      }
    on:
      branch: master

After implementing this in the master branch, check the package on https://www.npmjs.com/ to see if the publish was successful (assuming a new version was published).