Question

我要在C＃控制台应用程序中订阅Azure事件网格，并且该应用程序未托管在Azure上（将在Windows服务器上）。

其他C＃webapi项目将触发将在Azure上托管的Azure事件，但是如何在未托管在Azure上的VM上订阅（监听）事件？

在上述情况下我应该选择哪个端点详细信息？

Answer 1

一个想法是通过将一个端点设置为事件网格（如您的图片）中的专用EH来将事件推送到事件中心。然后，您可以在正在从专用端点读取所有事件的VM上实现侦听器。

下面是脚本外观的小代码示例，从本质上讲，它只是一个小型控制台应用程序，它从事件中心读取事件并将其写入控制台：

public class MyEventProcessor : IEventProcessor
{
    private Stopwatch checkpointStopWatch;

    public Task ProcessErrorAsync(PartitionContext context, Exception error)
    {
        Console.WriteLine(error.ToString());
        return Task.FromResult(true);
    }

    async Task IEventProcessor.CloseAsync(PartitionContext context, CloseReason reason)
    {
        if (reason == CloseReason.Shutdown)
        {
            await context.CheckpointAsync();
        }
    }

    Task IEventProcessor.OpenAsync(PartitionContext context)
    {
        var eventHubPartitionId = context.PartitionId;
        Console.WriteLine($"Registered reading from the partition: {eventHubPartitionId} ");
        this.checkpointStopWatch = new Stopwatch();
        this.checkpointStopWatch.Start();
        return Task.FromResult<object>(null);
    }

    //Data comes in here
    async Task IEventProcessor.ProcessEventsAsync(PartitionContext context, IEnumerable<EventData> messages)
    {
        foreach (var eventData in messages)
        {
            var data = Encoding.UTF8.GetString(eventData.Body.Array, eventData.Body.Offset, eventData.Body.Count);
            Console.WriteLine($"Message Received from partition {context.PartitionId}: {data}");
        }

        await context.CheckpointAsync();
    }
}
class Program
{
    static void Main(string[] args)
    {
        string processorHostName = Guid.NewGuid().ToString();
        var Options = new EventProcessorOptions()
        {
            MaxBatchSize = 1,
        };
        Options.SetExceptionHandler((ex) =>
        {
            System.Diagnostics.Debug.WriteLine($"Exception : {ex}");
        });
        var eventHubCS = "event hub connection string";
        var storageCS = "storage connection string";
        var containerName = "test";
        var eventHubname = "test2";
        EventProcessorHost eventProcessorHost = new EventProcessorHost(eventHubname, "$Default", eventHubCS, storageCS, containerName);
        eventProcessorHost.RegisterEventProcessorAsync<MyEventProcessor>(Options).Wait();

        while(true)
        {
            //do nothing
        }
    }
}

虚拟机上控制台应用程序的Azure事件网格订阅

1 个答案: