# LifecycleExtensions

Package: [Microsoft.Orleans.Core.Abstractions](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Core.Abstractions) | [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/Lifecycle/LifecycleExtensions.cs#L10)

```csharp
public static class LifecycleExtensions
```

Extensions for working with lifecycle observers.

## Methods

- [Subscribe(ILifecycleObservable, int, ILifecycleObserver)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.lifecycleextensions/methods/subscribe-this-orleans-ilifecycleobservable-int-orleans-ilifecycleobserver-38299ba9/)
- [Subscribe(ILifecycleObservable, string, int, Func<CancellationToken, Task>)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.lifecycleextensions/methods/subscribe-this-orleans-ilifecycleobservable-string-int-system-func-system-thread-d525f4d6/)
- [Subscribe(ILifecycleObservable, string, int, Func<CancellationToken, Task>, Func<CancellationToken, Task>)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.lifecycleextensions/methods/subscribe-this-orleans-ilifecycleobservable-string-int-system-func-system-thread-1f67a09b/)
- [Subscribe(ILifecycleObservable, int, Func<CancellationToken, Task>)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.lifecycleextensions/methods/subscribe-1-this-orleans-ilifecycleobservable-int-system-func-system-threading-c-bfe7d6ae/)
- [Subscribe(ILifecycleObservable, int, Func<CancellationToken, Task>, Func<CancellationToken, Task>)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.lifecycleextensions/methods/subscribe-1-this-orleans-ilifecycleobservable-int-system-func-system-threading-c-d612e78a/)
- [Subscribe(ILifecycleObservable, int, ILifecycleObserver)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.lifecycleextensions/methods/subscribe-1-this-orleans-ilifecycleobservable-int-orleans-ilifecycleobserver-9924b5af/)