Connect your npm project to Azure Artifacts

Article
03/14/2025

Azure DevOps Services | Azure DevOps Server 2022 - Azure DevOps Server 2019

Azure Artifacts enables developers to manage their packages from various sources, including both public registries like npmjs.com and private feeds. To authenticate with Azure Artifacts, you'll need to configure your npm config file. This file contains feed URLs and credentials used by npm, offering options to customize your npm client behavior, such as setting up proxies, defining default package locations, or configuring private package feeds. The npmrc file is typically located in the user's home directory but can also be created at the project level to override default settings.

Prerequisites

An Azure DevOps organization. Create one for free.
An Azure DevOps project. Create a new project if you don't have one already.
An Azure Artifacts feed. Create one for free.
Download and install Node.js and npm.

Connect to Feed

Azure Artifacts recommends using two separate configuration files. The first is dedicated to authenticating with Azure Artifacts, while the second should be kept locally to store your credentials. This approach allows you to share your configuration file while keeping your credentials secure.

To set up the second file, place it in your home directory on your development machine and include all your registry credentials. This enables the npm client to easily access your credentials for authentication.

The following steps guide you through setting up the first configuration file. Select the tab that corresponds to your development environment:

Note

vsts-npm-auth is not supported in Azure DevOps Server.

Windows
Linux/macOS

Sign in to your Azure DevOps organization, and then navigate to your project.
Select Artifacts, and then select Connect to Feed.
Select npm from the left sidebar. If this is the first time using Azure Artifacts with npm, make sure you've installed the prerequisites.
Follow the instructions in the Project setup section to connect to your feed.

Add a .npmrc file in your project's directory, in the same directory as your package.json file, and paste the following snippet into it.
```
registry=https://pkgs.dev.azure.com/<ORGANIZATION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/ 

always-auth=true
```

Setup credentials

Copy the following snippet and paste it into your user-level npmrc file:

Organization-scoped feed:

; begin auth token
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/_packaging/<FEED_NAME>/npm/registry/:username=[ENTER_ANY_VALUE_BUT_NOT_AN_EMPTY_STRING]
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/_packaging/<FEED_NAME>/npm/registry/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/_packaging/<FEED_NAME>/npm/registry/:email=npm requires email to be set but doesn't use the value
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/_packaging/<FEED_NAME>/npm/:username=[ANY_VALUE_BUT_NOT_AN_EMPTY_STRING]
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/_packaging/<FEED_NAME>/npm/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/_packaging/<FEED_NAME>/npm/:email=npm requires email to be set but doesn't use the value
; end auth token

Project-scoped feed:

; begin auth token
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/:username=[ENTER_ANY_VALUE_BUT_NOT_AN_EMPTY_STRING]
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/:email=npm requires email to be set but doesn't use the value
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/:username=[ENTER_ANY_VALUE_BUT_NOT_AN_EMPTY_STRING]
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//pkgs.dev.azure.com/<ORGANIZATION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/:email=npm requires email to be set but doesn't use the value
; end auth token

Generate a personal access token with packaging read and write scopes.

Run the following command in a command prompt window, and then paste your personal access token when prompted. Once done, copy the generated Base 64 encoded value.

node -e "require('readline') .createInterface({input:process.stdin,output:process.stdout,historySize:0}) .question('PAT> ',p => { b64=Buffer.from(p.trim()).toString('base64');console.log(b64);process.exit(); })"

If you're on Linux/Mac, you can alternatively use the following command to convert your personal access token to Base 64. Copy the resulting Base64 encoded value.
```
echo -n "YOUR_PERSONAL_ACCESS-TOKEN" | base64
```
Replace the placeholders [BASE64_ENCODED_PERSONAL_ACCESS_TOKEN] in your user .npmrc file with the encoded personal access token obtained from the previous step.

Windows
Linux/macOS

Sign in to your Azure DevOps collection, and then navigate to your project.
Select Artifacts, and then select Connect to Feed.
Select npm from the left sidebar, and then follow the instructions in the Project setup section to set up your config file.

Add a .npmrc file in your project's directory, in the same directory as your package.json file, and paste the following snippet into it.
```
registry=http://<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/

always-auth=true
```

Setup credentials

Copy the following snippet and paste it into your user-level .npmrc file:

Collection-scoped feed:

; begin auth token
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/registry/:username=DefaultCollection
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/registry/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/registry/:email=npm requires email to be set but doesn't use the value
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/:username=DefaultCollection
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/:email=npm requires email to be set but doesn't use the value
; end auth token

Project-scoped feed:

; begin auth token
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/:username=[ENTER_ANY_VALUE_BUT_NOT_AN_EMPTY_STRING]
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/:email=npm requires email to be set but doesn't use the value
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/:username=[ENTER_ANY_VALUE_BUT_NOT_AN_EMPTY_STRING]
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/:email=npm requires email to be set but doesn't use the value
; end auth token

Generate a personal access token with packaging read and write scopes.

Run the following command in a command prompt window, and then paste your personal access token when prompted. Once done, copy the generated Base 64 encoded value.

node -e "require('readline') .createInterface({input:process.stdin,output:process.stdout,historySize:0}) .question('PAT> ',p => { b64=Buffer.from(p.trim()).toString('base64');console.log(b64);process.exit(); })"

Replace the placeholders [BASE64_ENCODED_PERSONAL_ACCESS_TOKEN] in your user .npmrc file with the encoded personal access token obtained from the previous step.

Windows
Linux/macOS

Sign in to your Azure DevOps collection, and then navigate to your project.
Select Artifacts, and then select Connect to feed.
Select npm from the left, and then follow the instructions in Project setup to set up your config file.

Add a .npmrc file in your project's directory, in the same directory as your package.json file, and paste the following snippet into it:
```
registry=http://<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/

always-auth=true
```

Setup credentials

Copy the following snippet and paste it into your user-level .npmrc file:

Collection-scoped feed:

; begin auth token
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/registry/:username=DefaultCollection
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/registry/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/registry/:email=npm requires email to be set but doesn't use the value
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/:username=DefaultCollection
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//<SERVER_NAME>/<COLLECTION_NAME>/_packaging/<FEED_NAME>/npm/:email=npm requires email to be set but doesn't use the value
; end auth token

Project-scoped feed:

; begin auth token
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/:username=[ENTER_ANY_VALUE_BUT_NOT_AN_EMPTY_STRING]
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/registry/:email=npm requires email to be set but doesn't use the value
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/:username=[ENTER_ANY_VALUE_BUT_NOT_AN_EMPTY_STRING]
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/:_password=[BASE64_ENCODED_PERSONAL_ACCESS_TOKEN]
//<SERVER_NAME>/<COLLECTION_NAME>/<PROJECT_NAME>/_packaging/<FEED_NAME>/npm/:email=npm requires email to be set but doesn't use the value
; end auth token

Generate a personal access token with packaging read and write scopes.

Run the following command in a command prompt window, and then paste your personal access token when prompted. Once done, copy the generated Base 64 encoded value.

node -e "require('readline') .createInterface({input:process.stdin,output:process.stdout,historySize:0}) .question('PAT> ',p => { b64=Buffer.from(p.trim()).toString('base64');console.log(b64);process.exit(); })"

Replace the placeholders [BASE64_ENCODED_PERSONAL_ACCESS_TOKEN] in your user .npmrc file with the encoded personal access token obtained from the previous step.

Sign in to your Azure DevOps collection, and then navigate to your project.
Select Artifacts, and then select Connect to feed.
A new window will appear. From the left-hand navigation pane, select npm.
Follow the provided instructions to configure your project and user .npmrc files.

Tip

Using multiple registries in .npmrc files is supported with scopes and upstream sources.

Troubleshoot

vsts-npm-auth is not recognized

This error indicates that the npm modules folder hasn't been added to your path. Rerun the Node.js setup and make sure to select the Add to PATH option. Alternatively, you can add the npm modules folder to your path by modifying the PATH variable to %APPDATA%\npm in Command Prompt or $env:APPDATA\npm in PowerShell.

A Screenshot showing how to set up node.js.

Unable to authenticate

Error: code E401 npm ERR! Unable to authenticate: -> Run the vsts-npm-auth command with -F flag to reauthenticate:
```
vsts-npm-auth -config .npmrc -F
```

Reset vsts-npm-auth

Follow these steps to reset your vsts-npm-auth credentials:

Uninstall vsts-npm-auth:
```
npm uninstall -g vsts-npm-auth
```
Clear your npm cache:
```
npm cache clean --force
```
Delete your .npmrc file.

Reinstall vsts-npm-auth:

npm install -g vsts-npm-auth --registry https://registry.npmjs.com --always-auth false

Unable to publish

If you encounter a 403 error, it may indicate a name conflict. In Azure Artifacts, packages are immutable, meaning that once you publish a package to your feed, its version number is permanently reserved. Even if you delete it, you can't publish a new package with the same version number. To address this issue, update the package version in your package.json file, and then try again.

Share via

Connect your npm project to Azure Artifacts

Prerequisites

Connect to Feed

Setup credentials

Setup credentials

Setup credentials

Troubleshoot

vsts-npm-auth is not recognized

Unable to authenticate

Reset vsts-npm-auth

Unable to publish

Feedback

Additional resources

Share via

Connect your npm project to Azure Artifacts

Prerequisites

Connect to Feed

Troubleshoot

vsts-npm-auth is not recognized

Unable to authenticate

Reset vsts-npm-auth

Unable to publish

Related content

Feedback

Additional resources