jan*_*ann 4 c# cqrs event-sourcing eventstoredb
作为GetEventStore的第一次用户并阅读了文档,我遇到了一个问题,即事件从未出现在我的订阅客户端上。
由于我错过了一个配置步骤,这是可能的。
拥有此控制台应用程序客户端:
public class EventStoreSubscriptionClient : ISubscriptionClient
{
private const string GroupName = "liner";
private const string StreamName = "$ce-happening";
private readonly IProvideEventStoreConnection _eventStoreConnection;
private readonly UserCredentials _userCredentials;
private EventStorePersistentSubscriptionBase EventStorePersistentSubscriptionBase { get; set; }
public EventStoreSubscriptionClient(IProvideEventStoreConnection eventStoreConnection, UserCredentials userCredentials)
{
_eventStoreConnection = eventStoreConnection;
_userCredentials = userCredentials;
}
public void Connect()
{
var connection = _eventStoreConnection.ConnectAsync().Result;
EventStorePersistentSubscriptionBase = connection.ConnectToPersistentSubscription(
StreamName,
GroupName,
EventAppeared,
SubscriptionDropped,
_userCredentials,
10,
false
);
}
private void SubscriptionDropped(EventStorePersistentSubscriptionBase subscription, SubscriptionDropReason reason, Exception ex)
{
Connect();
}
private async void EventAppeared(EventStorePersistentSubscriptionBase subscription, ResolvedEvent resolvedEvent)
{
Console.WriteLine("Event appeared: " + resolvedEvent.Event.EventId);
}
public void Dispose()
{
EventStorePersistentSubscriptionBase.Stop(TimeSpan.FromSeconds(15));
}
}
Run Code Online (Sandbox Code Playgroud)
启动此控制台应用程序后,与http://myserver:1113的连接正常。在我的事件商店的管理面板中,我可以看到在竞争消费者选项卡上有一个到这个流/组的连接:
但是,如果我发送一个类似于happening-<guid>它的事件显示在流浏览器上,但我的订阅客户端从未收到event appeared事件:
我是否误解了订阅、流和群组的工作方式?请赐教。