# withNpm

- Module: [Aspire.Hosting.JavaScript](/reference/api/typescript/aspire.hosting.javascript.md)
- Version: `13.4.0`
- Kind: `method`
- Source: [GitHub](https://github.com/microsoft/aspire)

Configures the Node.js resource to use npm as the package manager and optionally installs packages before the application starts.

## Definition

```typescript
interface BunAppResource {
  // ... omitted for brevity
  withNpm(
    install?: boolean,
    installCommand?: string,
    installArgs?: string[]): JavaScriptAppResource
}
```

## Parameters

- `install` (`boolean`) `optional` `= True`
- `installCommand` (`string`) `optional`
- `installArgs` (`string[]`) `optional`

## Returns

[JavaScriptAppResource](/reference/api/typescript/aspire.hosting.javascript/javascriptappresource.md) `builder`

## Applies to

- [BunAppResource](/reference/api/typescript/aspire.hosting.javascript/bunappresource.md)
- [JavaScriptAppResource](/reference/api/typescript/aspire.hosting.javascript/javascriptappresource.md)
- [NextJsAppResource](/reference/api/typescript/aspire.hosting.javascript/nextjsappresource.md)
- [NodeAppResource](/reference/api/typescript/aspire.hosting.javascript/nodeappresource.md)
- [ViteAppResource](/reference/api/typescript/aspire.hosting.javascript/viteappresource.md)