我编写了一个Azure功能,并将输出连接到通知中心,以使用APNS发送推送通知.只要我将通知发送到所有已注册的设备,它就可以正常工作,但我不知道如何使用标签来解决特定用户的问题.如果我尝试使用标记,我会收到一条错误消息,说“执行函数时出现异常：Functions.SendSinglePushNotification.Microsoft.Azure.WebJobs.Host：函数返回后处理参数通知时出错：Microsoft.Azure.NotificationHubs：notification.标签属性应为null.“

到目前为止,这是我的代码：

#r "Microsoft.Azure.NotificationHubs"
#r "Newtonsoft.Json"


using System;
using Microsoft.Azure.NotificationHubs;
using Newtonsoft.Json;using         
Microsoft.Azure.WebJobs.Host.Bindings.Runtime;

public static void Run(HttpRequestMessage req,TraceWriter log,Binder     
binder,out AppleNotification notification)
{
    string user = "Test";
    string tagExpression = "Test";
    string userTag = req.GetQueryNameValuePairs()
    .FirstOrDefault(q => string.Compare(q.Key,"userid",true) == 0)
    .Value;

    string apnsNotificationPayload = "{\"aps\": {\"alert\": \"Test: (" + user + ")\" }}";
    notification = new AppleNotification(apnsNotificationPayload); 
}

我试图使用notification = new
    AppleNotification(apnsNotificationPayload,tagExpression);
但这不起作用.我怎样才能实现这一目标？

非常感谢和最诚挚的问候

[FunctionName("MyFunction")]
    public static async Task Run([ServiceBusTrigger("queuename",AccessRights.Listen,Connection =
    "<connection-settings-name>")] string myQueueItem,TraceWriter log)
{
    log.Info($"C# Queue trigger function processed: {myQueueItem}");

    var notificationHubSas = "<DefaultFullSharedAccessSignature from Azure portal>";
    var notificationHubName = "myhub";
    var nhClient = NotificationHubClient.CreateClientFromConnectionString(notificationHubSas,notificationHubName);
    var tags = "";
    await nhClient.SendTemplateNotificationAsync(<notification payload>,tags);
}