使用标签时未收到带有 azure 通知中心的通知

Question

我是新手。 android的例子来自 GetStartedFirebase

以下是步骤：

1) 我将安卓安装到我的手机上

2) 我按照这个例子创建了我的 web api https//docs.microsoft.com/en-us/azure/notification-hubs/notification-hubs-aspnet-backend-gcm-android-push-to-user-google-notification

3) 我注释掉 AuthenticationTestHandler 类

4)我从小提琴中调用下面的代码

DeviceRegistration 对象

{
  "Platform": "gcm",
  "Handle": "regid i get from android",
  "Tags": [
    "1",
    "2"
  ]
}

// 这会在指定的 id 处创建或更新注册（使用提供的 channelURI）

      public async Task<HttpResponseMessage> Put(string id, DeviceRegistration deviceUpdate)
    {
        RegistrationDescription registration = null;
        switch (deviceUpdate.Platform)
        {
            case "mpns":
                registration = new MpnsRegistrationDescription(deviceUpdate.Handle);
                break;
            case "wns":
                registration = new WindowsRegistrationDescription(deviceUpdate.Handle);
                break;
            case "apns":
                registration = new AppleRegistrationDescription(deviceUpdate.Handle);
                break;
            case "gcm":
                registration = new GcmRegistrationDescription(deviceUpdate.Handle);
                break;
            default:
                throw new HttpResponseException(HttpStatusCode.BadRequest);
        }

        registration.RegistrationId = id;

        var username = "test";

        string[] userTag = new string[1];
        userTag[0] = "username:" + username;
        registration.Tags = new HashSet<string>(userTag);
        try
        {
            await hub.CreateOrUpdateRegistrationAsync(registration);
        }
        catch (MessagingException e)
        {
            ReturnGoneIfHubResponseIsGone(e);
        }

        return Request.CreateResponse(HttpStatusCode.OK);
    }

5) 然后我打电话发送推送通知

http://localhost:4486/api/Notifications?pns=gcm&to_tag=test

public async Task<HttpResponseMessage> Post(string pns, [FromBody]string message, string to_tag)
{

    var user = "test";
    message = "msg";
    string[] userTag = new string[1];
    userTag[0] = "username:" + to_tag;     

    Microsoft.Azure.NotificationHubs.NotificationOutcome outcome = null;
    HttpStatusCode ret = HttpStatusCode.InternalServerError;

    switch (pns.ToLower())
    {
        case "wns":
            // Windows 8.1 / Windows Phone 8.1
            var toast = @"<toast><visual><binding template=""ToastText01""><text id=""1"">" +
                        "From " + user + ": " + message + "</text></binding></visual></toast>";
            outcome = await Notifications.Instance.Hub.SendWindowsNativeNotificationAsync(toast, userTag);
            break;
        case "apns":
            // iOS
            var alert = "{\"aps\":{\"alert\":\"" + "From " + user + ": " + message + "\"}}";
            outcome = await Notifications.Instance.Hub.SendAppleNativeNotificationAsync(alert, userTag);
            break;
        case "gcm":
            // Android
            var notif = "{ \"data\" : {\"message\":\"" + "From " + user + ": " + message + "\"}}";
            outcome = await Notifications.Instance.Hub.SendGcmNativeNotificationAsync(notif, userTag);
            break;
    }

    if (outcome != null)
    {
        if (!((outcome.State == Microsoft.Azure.NotificationHubs.NotificationOutcomeState.Abandoned) ||
            (outcome.State == Microsoft.Azure.NotificationHubs.NotificationOutcomeState.Unknown)))
        {
            ret = HttpStatusCode.OK;
        }
    }

    return Request.CreateResponse(ret);
}

没有返回错误，但我没有收到任何通知。

我尝试删除用户标签如下：

outcome = await Notifications.Instance.Hub.SendGcmNativeNotificationAsync(notif);

我能够收到通知。

为什么标签不起作用？

任何帮助表示赞赏。

Answer 1

var allRegistrations = await Notifications.Instance.Hub.GetAllRegistrationsAsync(0);

在allRegistrations 中检查您的标签。如果它在那里，那么它应该可以工作。

您可以查看http://pushtry.com的测试通知

Answer 2

我很困惑 - Fiddler 的 JSON 显示注册具有“1”和“2”标签，但在代码中的任何地方都使用“用户名：测试”标签。您能否从集线器获取此注册并确保它具有正确的标签？ 您可以使用GetRegistrationAsync<TRegistrationDescription>(String) [1]、GetRegistrationsByChannelAsync(String, Int32) [2] 或GetAllRegistrationsAsync(Int32) [3] 方法获取注册。

[1]https://docs.microsoft.com/en-us/dotnet/api/microsoft.azure.notificationhubs.notificationhubclient#Microsoft_Azure_NotificationHubs_NotificationHubClient_GetRegistrationAsync__1_System_String_

[2]https://docs.microsoft.com/en-us/dotnet/api/microsoft.azure.notificationhubs.notificationhubclient#Microsoft_Azure_NotificationHubs_NotificationHubClient_GetRegistrationsByChannelAsync_System_String_System_Int32_

[3]https://docs.microsoft.com/en-us/dotnet/api/microsoft.azure.notificationhubs.notificationhubclient#Microsoft_Azure_NotificationHubs_NotificationHubClient_GetAllRegistrationsAsync_System_Int32_