ios - 使用Amazon AWS SNS服务IOS

Question

我正在开发一个使用Amazon AWS服务的应用程序，它是一个使者。

我想使用IOS推送通知服务和Amazon SNS来实现2个用户之间的通信。通过将消息发布到称为终结点的目的地，我可以从SNS控制台发送消息。

但是，我无法通过IOS的Amazon SDK将消息从一个手机发送到另一手机。我可以通过Amazon API以这种方式进行操作吗？

我想将名为messageDict的NSDictionary发送到目标端点。我可以在不使用服务器的情况下实现这一目标吗？

NSDictionary *messageDict = [[NSDictionary alloc]init];

messageDict = @{ @"Name" : @"HelloWrold" ,@"Id" :@"GoodBye",};

NSData *jsonData = [NSJSONSerialization dataWithJSONObject:messageDict options:NSJSONWritingPrettyPrinted error:nil];

NSString *jsonString = [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];


NSLog(@"Jsonstring %@",jsonString);

AWSSNS *publishCall = [AWSSNS new];

AWSSNSPublishInput *message = [AWSSNSPublishInput new];

message.subject = @"My First Message";


//This is the ending point
message.topicArn = @"arn:aws:sns:us-east-1:012345678912:endpoint/APNS_SANDBOX/appTesting/201sjad-XXXX-XXXX-XXXX-c34sdfdsf1d9c";

message.messageAttributes = messageDict;

message.messageStructure = jsonString;




[[publishCall publish:message]continueWithExecutor:[BFExecutor mainThreadExecutor] withBlock:^id(BFTask *task){

    if (task.error != nil) {
        NSLog(@"Error %@",task.error);

    }


    else{



        NSLog(@"Successful");

    }

    return nil;

}];

Answer 1

您可以将推送通知发送到特定设备(端点)或主题(多个订户列表)

两者的API调用略有不同。如此处API文档所述，您可以使用message.topicArn或message.targetArn http://docs.aws.amazon.com/sns/latest/api/API_Publish.html

(Objective-C类文档在这里:http://docs.aws.amazon.com/AWSiOSSDK/latest/Classes/AWSSNSPublishInput.html)

您的ARN是端点ARN，您的代码将其分配给message.topicArn我将其更改为

  message.targetArn = @"arn:aws:sns:us-east-1:123456789012:endpoint/APNS_SANDBOX/appTesting/201sjad-XXXX-XXXXXX-XXXX-c34sdfdsf1d9c";

(已对ARN进行了修改，以模糊您的帐户ID)

另外，请阅读 http://mobile.awsblog.com/post/Tx223MJB0XKV9RU/Mobile-token-management-with-Amazon-SNS并应用最佳实践以获取和管理您的设备 token 。

这是Javascript中的代码示例，可以轻松地适应Objective-C。

var DEFAULT_SNS_REGION  = 'eu-west-1';
var SNS_ENDPOINT_ARN    = 'arn:aws:sns:eu-west-1:0123456789012:endpoint/APNS_SANDBOX/AmazonSNSPushDemo/95084b8f-XXXX-XXXX-XXXX-b3429d0fa528';
var SNS_TOPIC_ARN       = 'arn:aws:sns:eu-west-1:012345678912:PushNotifications';

function sendNotification(msg, topicARN, endPointARN) {
    var sns = new aws.SNS({
        apiVersion: '2010-03-31',
        region: DEFAULT_SNS_REGION
    });

    var params = {}
    if (topicARN != '') {
       params = {
         Message: msg,
         //MessageStructure: 'json',
         TopicArn: topicARN
       };
    } else {
      params = {
        Message: msg,
        //MessageStructure: 'json',
        TargetArn: endPointARN
      };
    }

    console.log(params);

    var deferred = Q.defer();
    sns.publish(params, function(err,data) {
        if (err) {
          console.log(err, err.stack); // an error occurred
          deferred.reject(err);
        } else {
          console.log(data);           // successful response
          deferred.resolve(data);
        }
    });

    return deferred.promise; }