# ClientBuilderExtensions.AddNatsStreams(IClientBuilder, string, Action<NatsOptions>)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming.nats/orleans.streaming.nats.hosting.clientbuilderextensions/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.streaming.nats/orleans.streaming.nats.hosting.clientbuilderextensions/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Streaming.NATS/Hosting/ClientBuilderExtensions.cs#L15-L17)

```csharp
public static IClientBuilder AddNatsStreams(this IClientBuilder builder, string name, Action<NatsOptions> configureOptions)
```

Configure cluster client to use NATS persistent streams with default settings

### Parameters

- `builder` (`IClientBuilder`)
- `name` (`string`)
- `configureOptions` (`Action<NatsOptions>`)