# addDuckDB

- Module: [CommunityToolkit.Aspire.Hosting.DuckDB](/reference/api/typescript/communitytoolkit.aspire.hosting.duckdb.md)
- Version: `13.5.0`
- Kind: `method`
- Source: [GitHub](https://github.com/CommunityToolkit/Aspire/tree/4ff8268fbd97ddd23cb73dc8eff9cc92718156d1)

Adds a DuckDB resource to the application builder.

## Definition

```typescript
interface IDistributedApplicationBuilder {
  // ... omitted for brevity
  addDuckDB(
    name: string,
    databasePath?: string,
    databaseFileName?: string): DuckDBResource
}
```

## Parameters

- `name` (`string`)
- `databasePath` (`string`) `optional`
- `databaseFileName` (`string`) `optional`

## Returns

[DuckDBResource](/reference/api/typescript/communitytoolkit.aspire.hosting.duckdb/duckdbresource.md) `builder`

## Applies to

- [IDistributedApplicationBuilder](/reference/api/typescript/communitytoolkit.aspire.hosting.duckdb/idistributedapplicationbuilder.md)