如何从ListEndpointsByPlatformApplication Amazon SNS C＃获取用户数据

Question

我试图弄清楚如何使用AWS Simple Notification Service将通知发送给ios应用程序用户。

当我在Web应用程序中查看Application Endpoint时，我看到：

对于每个已注册的设备，我将在用户数据部分中存储我们唯一的userId。 然后，我将要发送如下推送：

public AmazonPushProvider(AmazonProviderObject provider)
{
            _client = new AmazonSimpleNotificationServiceClient(provider.AWSAccessKey, provider.AWSSecretKey);
            _appARN = provider.AppARN;
}

public void SendApplePush(string apsJson, int[] userIds = null)
{
    var iOSModel = _client.ListEndpointsByPlatformApplication(new ListEndpointsByPlatformApplicationRequest { PlatformApplicationArn = _appARN });


    foreach (var endpoint in iOSModel.Endpoints)
    {
        if (endpoint.???)
    }

}

问题是ListEndpointsByPlatformApplicationRequest似乎没有返回用户数据属性。 如何通过平台应用程序从端点列表中获取用户数据属性？

Answer 1

一旦有了平台端点ID，就可以调用GetEndpointAttributes（）

它返回带有以下信息的响应：

Gets and sets the property Attributes.
Attributes include the following:
CustomUserData -- arbitrary user data to associate with the endpoint. Amazon SNS does not use this data. The data must be in UTF-8 format and less than 2KB.
Enabled -- flag that enables/disables delivery to the endpoint. Amazon SNS will set this to false when a notification service indicates to Amazon SNS that the endpoint is invalid. Users can set it back to true, typically after updating Token.
Token -- device token, also referred to as a registration id, for an app and mobile device. This is returned from the notification service when an app and mobile device are registered with the notification service.