# ConnectionStringResource Constructors

- Package: [Aspire.Hosting](/reference/api/csharp/aspire.hosting.md)
- Type: [ConnectionStringResource](/reference/api/csharp/aspire.hosting/connectionstringresource.md)
- Kind: `Constructors`
- Members: `1`

Adds a connection string to the distributed application a resource with the specified expression.

## ConnectionStringResource(string, ReferenceExpression)

- Name: `Constructor(string, ReferenceExpression)`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/bd20f904cde09ecb9c9ae5116a6f13614bf2d7c2/src/Aspire.Hosting/ConnectionStringResource.cs#L13)

Adds a connection string to the distributed application a resource with the specified expression.

```csharp
public sealed class ConnectionStringResource
{
    public ConnectionStringResource(
        string name,
        ReferenceExpression connectionStringExpression)
    {
        // ...
    }
}
```

## Parameters

- `name` (`string`)
  The name of the resource.
- `connectionStringExpression` ([ReferenceExpression](/reference/api/csharp/aspire.hosting/referenceexpression.md))
  The connection string expression.