AWS push notification service integration error

问题

I am trying to integrate Amazon Push Notifications to my iPhone app. I did follow the tutorial provided here correctly.

I am getting this error when creating the Platform EndPoint. (Seems a permission issue with identity pool???)

CognitoIdentityCredentials is not authorized to perform: SNS:CreatePlatformEndpoint

Full message:

Error: Error Domain=com.amazonaws.AWSSNSErrorDomain Code=4 "The operation couldn’t be completed. (com.amazonaws.AWSSNSErrorDomain error 4.)" UserInfo=0x165dcef0 {Type=Sender, Message=User: arn:aws:sts::290442422498:assumed-role/Cognito_Laugh_DevUnauth_Role/CognitoIdentityCredentials is not authorized to perform: SNS:CreatePlatformEndpoint on resource: arn:aws:sns:us-east-1:290442422498:app/APNS_SANDBOX/Laugh, __text=(
"\n    ",
"\n    ",
"\n    ",
"\n  "
), Code=AuthorizationError}

Code

AWSRegionType const CognitoRegionType = AWSRegionUSEast1;
AWSRegionType const DefaultServiceRegionType = AWSRegionUSEast1;
NSString *const CognitoIdentityPoolId = @"us-east-1:0..................";
NSString *const SNSPlatformApplicationArn = @"arn:aws:sns:us-east-1:................";
NSString *const MobileAnalyticsAppId = @"YourMobileAnalyticsAppId";


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

  // Sets up the AWS Mobile SDK for iOS
 AWSCognitoCredentialsProvider *credentialsProvider =   [[AWSCognitoCredentialsProvider alloc] initWithRegionType:CognitoRegionType identityPoolId:CognitoIdentityPoolId];

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

 AWSServiceManager.defaultServiceManager.defaultServiceConfiguration = defaultServiceConfiguration;
}


- (void)application:(UIApplication*)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData*)deviceToken{

NSString *deviceTokenString = [[[deviceToken description] stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"<>"]] stringByReplacingOccurrencesOfString:@" " withString:@""];

NSLog(@"deviceTokenString: %@", deviceTokenString);
[[NSUserDefaults standardUserDefaults] setObject:deviceTokenString forKey:@"deviceToken"];
[[NSUserDefaults standardUserDefaults] synchronize];

AWSSNS *sns = [AWSSNS defaultSNS];
AWSSNSCreatePlatformEndpointInput *request = [AWSSNSCreatePlatformEndpointInput new];
request.token = deviceTokenString;
request.platformApplicationArn = SNSPlatformApplicationArn;

NSLog(@"SNSPlatformApplicationArn %@", SNSPlatformApplicationArn);

[[sns createPlatformEndpoint:request] continueWithBlock:^id(BFTask *task) {
    if (task.error != nil) {
        NSLog(@"Error: %@",task.error);
    } else {
        AWSSNSCreateEndpointResponse *createEndPointResponse = task.result;
        NSLog(@"endpointArn: %@",createEndPointResponse);
        [[NSUserDefaults standardUserDefaults] setObject:createEndPointResponse.endpointArn forKey:@"endpointArn"];
        [[NSUserDefaults standardUserDefaults] synchronize];
        //[self.window.rootViewController.childViewControllers.firstObject performSelectorOnMainThread:@selector(displayDeviceInfo) withObject:nil waitUntilDone:NO];

    }

    return nil;
}];

}