> ## Documentation Index
> Fetch the complete documentation index at: https://bun.ll1025.cn/llms.txt
> Use this file to discover all available pages before exploring further.

# Using bun install with an Azure Artifacts npm registry

<Note>
  [Azure
  Artifacts'](https://learn.microsoft.com/en-us/azure/devops/artifacts/npm/npmrc?view=azure-devops\&tabs=windows%2Cclassic)
  instructions for `.npmrc` say to base64 encode the password. Do not do this for `bun install`. Bun base64 encodes the
  password for you if needed.
</Note>

[Azure Artifacts](https://azure.microsoft.com/en-us/products/devops/artifacts) is a package management system for Azure DevOps. You can use it to host your own private npm registry, along with other types of packages.

***

### Configure with bunfig.toml

***

To use it with `bun install`, add a `bunfig.toml` file to your project with the following contents. Replace `my-azure-artifacts-user` with your Azure Artifacts username, such as `jarred1234`.

```toml bunfig.toml icon="settings" theme={null}
[install.registry]
url = "https://pkgs.dev.azure.com/my-azure-artifacts-user/_packaging/my-azure-artifacts-user/npm/registry"
username = "my-azure-artifacts-user"
# You can use an environment variable here
password = "$NPM_PASSWORD"
```

***

Then assign your Azure Personal Access Token to the `NPM_PASSWORD` environment variable. Bun [automatically reads](/runtime/environment-variables) `.env` files, so create a file called `.env` in your project root. Don't base64 encode the token; Bun does that for you.

```ini .env icon="settings" theme={null}
NPM_PASSWORD=<paste token here>
```

***

### Configure with environment variables

***

To configure Azure Artifacts without `bunfig.toml`, set the `NPM_CONFIG_REGISTRY` environment variable. The URL should include `:username` and `:_password` as query parameters. Replace `<USERNAME>` and `<PASSWORD>` with your own values.

```bash terminal icon="terminal" theme={null}
NPM_CONFIG_REGISTRY=https://pkgs.dev.azure.com/my-azure-artifacts-user/_packaging/my-azure-artifacts-user/npm/registry/:username=<USERNAME>:_password=<PASSWORD>
```

***

### Don't base64 encode the password

***

[Azure Artifacts'](https://learn.microsoft.com/en-us/azure/devops/artifacts/npm/npmrc?view=azure-devops\&tabs=windows%2Cclassic) instructions for `.npmrc` say to base64 encode the password. Do not do this for `bun install`. Bun base64 encodes the password for you if needed.

<Note>If the password ends with `==`, it is probably base64 encoded.</Note>

***

To decode a base64-encoded password, open your browser console and run:

```js browser icon="computer" theme={null}
atob("<base64-encoded password>");
```

***

Alternatively, use the `base64` command line tool, though the password may end up in your shell history:

```bash terminal icon="terminal" theme={null}
echo "base64-encoded-password" | base64 --decode
```