Amazon SNS Service Push Notification delivered or not - amazon-web-services

Question

I am using Aws SNS to send notification, and sending notifications to different topics and is working perfectly.
When i publish notification, i got array like
object(Aws\Result)#84 (1) {
["data":"Aws\Result":private]=>
array(2) {
["MessageId"]=>
string(36) "************-7a29-591f-8765-************"
["#metadata"]=>
array(4) {
["statusCode"]=>
int(200)
["effectiveUri"]=>
string(40) "https://sns.ap-southeast-1.amazonaws.com"
["headers"]=>
array(4) {
["x-amzn-requestid"]=>
string(36) "************-b737-5831-abf4-************"
["content-type"]=>
string(8) "text/xml"
["content-length"]=>
string(3) "294"
["date"]=>
string(29) "Fri, 28 Oct 2016 08:59:05 GMT"
}
["transferStats"]=>
array(1) {
["http"]=>
array(1) {
[0]=>
array(0) {}
}
}
}
}
}
I am using php at server side,
But i need to generate a report for each topic separately, that which endpoints (subscriber of topic) get notification and whether notifications are failed, and what is the percentage of successful delivery.
After a lot of research, i found that Aws CloudWatch can do my work, i also searched on stackOverflow for this, and got this answer:
How to confirm delivery status when using amazonSNS mobile push?
I also generated some log in CloudWatch,
By describeLogGroups, i am getting array like
[logGroups] => Array(
[0] => Array
(
[logGroupName] => sns/ap-southeast-1/************/app/GCM/AndroidN
[creationTime] => ************
[retentionInDays] => 30
[metricFilterCount] => 0
[arn] => arn:aws:logs:ap-southeast-1:************:log-group:sns/ap-southeast-1/************/app/GCM/AndroidN:*
[storedBytes] => 3133
)
)
By describeLogStreams, i am getting array like
[logStreams] => Array(
[0] => Array
(
[logStreamName] => 25
[creationTime] => 1477574852344
[firstEventTimestamp] => 1477574831966
[lastEventTimestamp] => 1477574831966
[lastIngestionTime] => 1477574852374
[uploadSequenceToken] => ***********************8
[arn] => arn:aws:logs:ap-southeast-1:*********:log-group:sns/ap-southeast-1/**********/app/GCM/AndroidN:log-stream:25
[storedBytes] => 627
)
)
but confused that how to access it for a particular topic, because in my website i create some topics for group of users (endpoints), and now i want to show for every topic how much notification sent/failed to endpoints not to topic,
Thanks in Anticipants.