# Event Interfaces

Event streaming interfaces.

## IEventStreamStore

```csharp
public interface IEventStreamStore
{
    Task AppendAsync(string streamName, object @event, CancellationToken ct = default);
    IAsyncEnumerable<StreamEvent> ReadStreamAsync(string streamName, long fromOffset, CancellationToken ct = default);
}
```

## IEventSubscriptionService

```csharp
public interface IEventSubscriptionService
{
    Task<IAsyncDisposable> SubscribeAsync(string streamName, Func<StreamEvent, Task> handler, CancellationToken ct = default);
}
```

## See Also

- [API Reference Overview](README.md)
- [Event Streaming](../event-streaming/README.md)