# PostaResource.withDataBindMount

- Module: [CommunityToolkit.Aspire.Hosting.Posta](/reference/api/typescript/communitytoolkit.aspire.hosting.posta.md)
- Defined on: [PostaResource](/reference/api/typescript/communitytoolkit.aspire.hosting.posta/postaresource.md)
- Version: `13.5.0`
- Kind: `method`

Adds a bind mount for Posta's filesystem-backed attachment data.

## Definition

```typescript
interface PostaResource {
  // ... omitted for brevity
  withDataBindMount(
      source: string,
      isReadOnly?: boolean): PostaResource;
}
```

## Signature

```typescript
withDataBindMount(
    source: string,
    isReadOnly?: boolean): PostaResource
```

## Parameters

- `source` (`string`)
- `isReadOnly` (`boolean`) `optional` `= False`

## Returns

[PostaResource](/reference/api/typescript/communitytoolkit.aspire.hosting.posta/postaresource.md) `builder`

## Defined on

- [PostaResource](/reference/api/typescript/communitytoolkit.aspire.hosting.posta/postaresource.md) -- `handle`