AMAZON AWS我如何向SNS主题订阅终结点？

Question

我正在使用Amazon SNS和Amazon Cognito服务在iOS应用中实现推送通知。 Cognito成功保存了令牌，我的应用程序收到通知，一切运行正常，但是有问题。

现在，当仍在开发中时，我需要手动将端点添加到SNS主题，以便所有订阅者都可以收到通知。 当我将更新推送到App Store时，将添加成千上万个令牌。

我当时在研究Amazon AWS文档，但没有线索，如果没有额外的努力，是否有可能实现这一目标。

我的问题：是否可以仅通过Amazon服务自动将端点订阅到主题？

Answer 1

无法自动将端点订阅到主题，但是您可以通过代码完成全部操作。

创建端点后，可以直接调用Subscribe API。 与其他类型的订阅不同，SNS Mobile Push无需确认。

以下是一些示例Objective-C代码，它们创建一个端点并将其订阅到主题：

AWSSNS *sns = [AWSSNS defaultSNS];
AWSSNSCreatePlatformEndpointInput *endpointRequest = [AWSSNSCreatePlatformEndpointInput new];
endpointRequest.platformApplicationArn = MY_PLATFORM_ARN;
endpointRequest.token = MY_TOKEN;

[[[sns createPlatformEndpoint:endpointRequest] continueWithSuccessBlock:^id(AWSTask *task) {
    AWSSNSCreateEndpointResponse *response = task.result;

    AWSSNSSubscribeInput *subscribeRequest = [AWSSNSSubscribeInput new];
    subscribeRequest.endpoint = response.endpointArn;
    subscribeRequest.protocols = @"application";
    subscribeRequest.topicArn = MY_TOPIC_ARN;
    return [sns subscribe:subscribeRequest];
}] continueWithBlock:^id(BFTask *task) {
    if (task.cancelled) {
        NSLog(@"Task cancelled");
    }
    else if (task.error) {
        NSLog(@"Error occurred: [%@]", task.error);
    }
    else {
        NSLog(@"Success");
    }
    return nil;
}];

确保已授予对sns:Subscribe访问权限，并以Cognito角色进行sns:Subscribe ，以允许您的应用程序进行此调用。

更新2015-07-08：已更新以反映AWS iOS SDK 2.2.0+

Answer 2

这是将端点订阅到Swift3的主题的原始代码

 func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {

    //Get Token ENDPOINT
    let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})

    //Create SNS Module
    let sns = AWSSNS.default()
    let request = AWSSNSCreatePlatformEndpointInput()
    request?.token = deviceTokenString

    //Send Request
    request?.platformApplicationArn = Constants.SNSDEVApplicationARN

    sns.createPlatformEndpoint(request!).continue({ (task: AWSTask!) -> AnyObject! in
        if task.error != nil {
            print("Error: \(task.error)")
        } else {

            let createEndpointResponse = task.result! as AWSSNSCreateEndpointResponse
            print("endpointArn: \(createEndpointResponse.endpointArn)")

            let subscription = Constants.SNSEndPoint //Use your own topic endpoint

            //Create Subscription request
            let subscriptionRequest = AWSSNSSubscribeInput()


              subscriptionRequest?.protocols = "application"
                subscriptionRequest?.topicArn = subscription
                subscriptionRequest?.endpoint = createEndpointResponse.endpointArn

                sns.subscribe(subscriptionRequest!).continue ({
                    (task:AWSTask) -> AnyObject! in
                    if task.error != nil
                    {
                        print("Error subscribing: \(task.error)")
                        return nil
                    }

                    print("Subscribed succesfully")

                   //Confirm subscription
                    let subscriptionConfirmInput = AWSSNSConfirmSubscriptionInput()
                    subscriptionConfirmInput?.token = createEndpointResponse.endpointArn
                    subscriptionConfirmInput?.topicArn = subscription
                    sns.confirmSubscription(subscriptionConfirmInput!).continue ({
                        (task:AWSTask) -> AnyObject! in
                        if task.error != nil
                        {
                            print("Error subscribing: \(task.error)")
                        }
                        return nil
                    })
                    return nil

                })

            }
            return nil

        })
    }

Answer 3

如果您想使用静态凭证而不是使用AWSCognito，则需要通过Amazon IAM控制台创建那些凭证。

这是在您的App Delegate中初始化Amazon的代码

    // Sets up the AWS Mobile SDK for iOS
    // Initialize the Amazon credentials provider
    AWSStaticCredentialsProvider *credentialsProvider =[[AWSStaticCredentialsProvider alloc] initWithAccessKey:AWSAccessID secretKey:AWSSecretKey];

    AWSServiceConfiguration *configuration = [[AWSServiceConfiguration alloc] initWithRegion:DefaultServiceRegionType credentialsProvider:credentialsProvider];

    [AWSServiceManager defaultServiceManager].defaultServiceConfiguration = configuration;

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