# IEventHubQueueCache.Add(List<EventData>, DateTime)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming.eventhubs/orleans.streaming.eventhubs.ieventhubqueuecache/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.streaming.eventhubs/orleans.streaming.eventhubs.ieventhubqueuecache/methods/)

```csharp
public abstract List<StreamPosition> Add(List<EventData> message, DateTime dequeueTimeUtc)
```

Add a list of EventHub EventData to the cache.

### Parameters

- `message` (`List<EventData>`)
- `dequeueTimeUtc` (`DateTime`)