# withConnectionProperty

- Module: [Aspire.Hosting](/reference/api/typescript/aspire.hosting.md)
- Version: `13.2.0`
- Kind: `method`
- Source: [GitHub](https://github.com/microsoft/aspire)

Adds a connection property with a reference expression

## Definition

```typescript
interface ConnectionStringResource {
  // ... omitted for brevity
  withConnectionProperty(
    name: string,
    value: ReferenceExpression): IResourceWithConnectionString
}
```

## Parameters

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

## Returns

[IResourceWithConnectionString](/reference/api/typescript/aspire.hosting/iresourcewithconnectionstring.md) `builder`

## Applies to

- [ConnectionStringResource](/reference/api/typescript/aspire.hosting/connectionstringresource.md)