# DuckDBResource Properties

- Package: [CommunityToolkit.Aspire.Hosting.DuckDB](/reference/api/csharp/communitytoolkit.aspire.hosting.duckdb.md)
- Type: [DuckDBResource](/reference/api/csharp/communitytoolkit.aspire.hosting.duckdb/duckdbresource.md)
- Kind: `Properties`
- Members: `1`

Represents a resource for a DuckDB database with a specified name and database path.

<a id="connectionstringexpression"></a>

## ConnectionStringExpression

- Name: `ConnectionStringExpression`
- Modifiers: `get`
- Returns: `ReferenceExpression`
- Source: [GitHub](https://github.com/CommunityToolkit/Aspire/blob/d479e13473b1d29d06b974f144a0049289a3cb5c/src/CommunityToolkit.Aspire.Hosting.DuckDB/DuckDBResource.cs#L21-L23)

Describes the connection string format string used for this resource.

```csharp
public ReferenceExpression ConnectionStringExpression { get; }
```