# AsyncObservableExtensions

Package: [Microsoft.Orleans.Streaming](/orleans/docs/api/csharp/microsoft.orleans.streaming/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Streaming) | [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Streaming/Extensions/AsyncObservableExtensions.cs#L9)

```csharp
public static class AsyncObservableExtensions
```

Extension methods for `Orleans.Streams.IAsyncObservable-1`.

## Methods

- [SubscribeAsync(IAsyncObservable<T>, Func<T, StreamSequenceToken, Task>)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.asyncobservableextensions/methods/subscribeasync-1-this-orleans-streams-iasyncobservable-t-system-func-t-orleans-s-696bd041/)
- [SubscribeAsync(IAsyncObservable<T>, Func<T, StreamSequenceToken, Task>, Func<Exception, Task>)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.asyncobservableextensions/methods/subscribeasync-1-this-orleans-streams-iasyncobservable-t-system-func-t-orleans-s-54082858/)
- [SubscribeAsync(IAsyncObservable<T>, Func<T, StreamSequenceToken, Task>, Func<Exception, Task>, Func<Task>)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.asyncobservableextensions/methods/subscribeasync-1-this-orleans-streams-iasyncobservable-t-system-func-t-orleans-s-389cbc77/)
- [SubscribeAsync(IAsyncObservable<T>, Func<T, StreamSequenceToken, Task>, Func<Exception, Task>, Func<Task>, StreamSequenceToken)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.asyncobservableextensions/methods/subscribeasync-1-this-orleans-streams-iasyncobservable-t-system-func-t-orleans-s-087b45fe/)
- [SubscribeAsync(IAsyncObservable<T>, Func<T, StreamSequenceToken, Task>, Func<Exception, Task>, StreamSequenceToken)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.asyncobservableextensions/methods/subscribeasync-1-this-orleans-streams-iasyncobservable-t-system-func-t-orleans-s-c424069f/)
- [SubscribeAsync(IAsyncObservable<T>, Func<T, StreamSequenceToken, Task>, Func<Task>)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.asyncobservableextensions/methods/subscribeasync-1-this-orleans-streams-iasyncobservable-t-system-func-t-orleans-s-9e8960e8/)
- [SubscribeAsync(IAsyncObservable<T>, Func<T, StreamSequenceToken, Task>, Func<Task>, StreamSequenceToken)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.asyncobservableextensions/methods/subscribeasync-1-this-orleans-streams-iasyncobservable-t-system-func-t-orleans-s-aec30ecf/)
- [SubscribeAsync(IAsyncObservable<T>, Func<T, StreamSequenceToken, Task>, StreamSequenceToken)](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.asyncobservableextensions/methods/subscribeasync-1-this-orleans-streams-iasyncobservable-t-system-func-t-orleans-s-59134350/)