# ContainerResource.withBuildArg

- Module: [Aspire.Hosting](/reference/api/typescript/aspire.hosting.md)
- Defined on: [ContainerResource](/reference/api/typescript/aspire.hosting/containerresource.md)
- Version: `13.4.0`
- Kind: `method`

Adds a build argument when the container is built from a Dockerfile.

## Definition

```typescript
interface ContainerResource {
  // ... omitted for brevity
  withBuildArg(
      name: string,
      value: ParameterResource): ContainerResource;
}
```

## Signature

```typescript
withBuildArg(
    name: string,
    value: ParameterResource): ContainerResource
```

## Parameters

- `name` (`string`)
- `value` ([ParameterResource](/reference/api/typescript/aspire.hosting/parameterresource.md))

## Returns

[ContainerResource](/reference/api/typescript/aspire.hosting/containerresource.md) `builder`

## Defined on

- [ContainerResource](/reference/api/typescript/aspire.hosting/containerresource.md) -- `handle`