如何从.NET的Azure事件网格库运行此示例使用事件

问题描述

我正在使用EventGrid库，并且需要获得订阅和之前发送的消息。该示例的链接是这样的：https://docs.microsoft.com/en-us/dotnet/api/overview/azure/eventgrid?view=azure-dotnet

代码是：

string response = string.Empty;
string requestContent = await req.Content.ReadAsStringAsync();

EventGridSubscriber eventGridSubscriber = new EventGridSubscriber();

// Optionally add one or more custom event type mappings
eventGridSubscriber.AddOrUpdateCustomEventMapping("Contoso.Items.ItemReceived",typeof(ContosoItemReceivedEventData));

var events = eventGridSubscriber.DeserializeEventGridEvents(requestContent);            
 
foreach (EventGridEvent receivedEvent in events)
{
    if (receivedEvent.Data is SubscriptionValidationEventData)
    {
        SubscriptionValidationEventData eventData = (SubscriptionValidationEventData)receivedEvent.Data;
        log.Info($"Got SubscriptionValidation event data,validationCode: {eventData.ValidationCode},validationUrl: {eventData.ValidationUrl},topic: {eventGridEvent.Topic}");
        // Handle subscription validation
    }
    else if (receivedEvent.Data is StorageBlobCreatedEventData)
    {
        StorageBlobCreatedEventData eventData = (StorageBlobCreatedEventData)receivedEvent.Data;
        log.Info($"Got BlobCreated event data,blob URI {eventData.Url}");
        // Handle StorageBlobCreatedEventData
    }
    else if (receivedEvent.Data is ContosoItemReceivedEventData)
    {
        ContosoItemReceivedEventData eventData = (ContosoItemReceivedEventData)receivedEvent.Data;
    }
}

解决方法

您可以阅读有关通过事件网格发布和使用事件的本教程：Microsoft Azure Event Grid Publish/Consume Samples for C#

它还为您提供了不同的样本来达到相同的目的。

让我知道您是否遇到任何问题。