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AWS SNS - Push for GCM showing as sent from Cloudwatch but not received in Mobile Device

I am migrating from custom Push Notification to AWS SNS. I did the following.
configured AWS SNS Topic
Created Platform Application
created Endpoints
Suscribed endpoints to Platform Application
I am trying the last step for Pushing the Notification using 'publish' API for Ruby. I receive the message_id as response. It also logs as success / delivered in CloudWatch. But the Push is not received in the device.
The device is valid
The device has a valid push token
the device has the application installed.
The message format I tried areas follows
{"GCM"=>{"data"=>"{\"message\":\"message\",\"url\":\"url\"}"}, :default=>"default"}
SNS publish API syntax
client.publish({target_arn: endpoint_arn, message: message.to_json, subject: "SNS test", message_structure: :json})
FYI, Before marking this as duplicate of any other question, please note that i have referred all previous answers and nothing helped me. hence I am raising a new one.

The GCM payload format is updated.
This works for me.
{
"GCM": "{ \"notification\": { \"body\": \"hello....\", \"title\": \"title123\" } }"
}

There is a problem with my message formation. I figured it out by debugging with android . The Push reached the device but it was not in the expected format. So the push was not shown in the device. I was sending
{"GCM"=>{"data"=>"{\"message\":\"message\",\"url\":\"url\"}"}, :default=>"default"}
But the Android system was expecting 'badge' and some other keys in my message. I tried with
{:default=>"default", :GCM=>"{\"data\":{\"message\":\"test\",\"url\":\"https://s3.amazonaws.com/mcds_fulltext/aapg/gsaapgbull/issues/74/android_hdpi/cover_74.gif\",\"registration_ids\":\"arn:aws:sns:us-****-1:*********7:endpoint/GCM/gs*****_gcm/*********************\",\"badge\":\"10\",\"vol\":\"128\",\"issue\":\"10\",\"journal_name\":\"gsaapg\",\"abbr\":\"aapg\"},\"collapse_key\":\"New Article badge\"}"}
Now it works as expected.
This particular JSON might not be appropriate for everyone. But the cause of this issue is the message JSON is not in the expected format for the mobile app. This might be helpful for someone who face the similar issue.

Getting Blank messages in my app from AWS SNS.

I want to send push notification to individual using android GCM. have created the app in SNS. I am using aws-sdk v1.4 for Ruby.
When I send through Amazon web interface I receive the messages, but When I publish it through using the code below, I get blank messages. what is the right message format to send?
sns = AWS::SNS::Client.new
endpoint = sns.create_platform_endpoint(platform_application_arn:my_token)
sns.publish(target_arn:endpoint:endpoint_arn, message: "GCM:{data:{message:"GCM:{data:{message:'hello'}")
Please help.
TIA

{"GCM": "{ \"data\": { \"message\": \"hello\" } }"}
Do not call to_json method also set the subject parameter in publish.

The message should be a valid JSON string if you want to publish a message to GCM. You can use to_json to serialize a hash object to JSON. Here is a article about using AWS SDK for Ruby http://blog.tryneighborly.com/amazon-sns-for-apns-on-rails/.
For more information about Amazon SNS:
Send Custom Platform-Specific Payloads in Messages to Mobile Devices
Getting Started with Google Cloud Messaging for Android
Ruby doc for Aws::SNS::Client

Android PushNotification From Json URL

I have a Json URL, which contains data about Latest Job Postings, I am successfully parsing the Json URL and able to display the top job postings in my ListView.
But my requirement is to create a push notification, so that whenever a new job is posted, the user should be able to get a notification on device.
I have followed this: http://www.vogella.com/articles/AndroidNotifications/article.html
But I don't know how to get notifications in my case.
Could anyone help me?

Issue:
Give push notification to user's device about the updated data even when application is in background mode.
Solution:
Upon successful insertion of new data in your database (which is going to give updated set of data to your JSON request) , just call the file which send GCM push notification to all your users.
Reference:
GCM docs
GCM push-notification using php server
In context of implementation presented in demo app of 2nd link,
upon successful insertion,you can call send_message.php file,but make sure that $regId and $message should be retrieved from your database

You have created ActionBar Notifications for your app, but now you need to create the ability to receive notifications from a web client, instead of going to find them yourself from the URL.
To create a push notification you would need to have a constant thread (BroadcastReceiver) on the device that is waiting for the notification from the sever.
Google 'Cloud to Device Messaging' is the simplest way to do this.
This is a good link with lots of info on how to do this :
http://blog.mediarain.com/2011/03/simple-google-android-c2dm-tutorial-push-notifications-for-android/

If you require these notifications to be displayed on the device even when the application is not running (which seems to be the case from what you describe), you can use Google Cloud Messaging.
You would need a server that would poll the Json URL for updates, and send a GCM message to all the devices where your app is installed once such an update is detected.
Your app would have to register to Google Cloud Messaging and send the Registration ID received from Google to your server.
When your app receive a GCM message, you would create a notification and when the notification is tapped, you would start the activity that loads the data from the JSON URL.

How to push XML file from server to android application via GCM server

I am trying GCM based android app to push messages from server to android client. I am able to push fix string with the following coe. I am wondering about the ways to push XML file from server and parse at the android application. I have done some research but I couldn't find push XML rather I found send XML file. Thank you
if (androidArray.size() == 1) {
String registrationId = androidArray.get(0);
Message message = new Message.Builder()
.collapseKey(collapseKey)
.timeToLive(30)
.delayWhileIdle(true)
.addData("message", Message)
.build();
Result result = sender.send(message, registrationId, 5);

You don't push xml (or JSON preferably) to the android app. You send a simple message to the app.
when the app receives the message it then needs to go and pull the xml/json from the website with an http get request to the relevant url that will supply the xml.
The android app can then parse the response and do whatever you want it to.
Here is an EXCELLENT tutorial on C2DM (The forerunner to GCM) http://www.vogella.com/articles/AndroidCloudToDeviceMessaging/article.html
You should be able to work out the differences needed.
UPDATE
Google Android has a complete section on GCM which can be found here
http://developer.android.com/google/gcm/index.html
Within that link there are getting started guides and a GCM Demo app
There are limits to the amount of data you can send and you should not rely on your data not ever exceeding the limits or Google arbitrarily changing the amount of data you are allowed to send.
Should either of those occur you would need to update your app so just do it right in the first place.
The message you send should act as a "key" to determine what action to take when the message is received.
UPDATE
If you are feeling REALLY adventurous you could use a custom sync adapter to help you consume your web services. It's pretty advanced stuff but if you are feeling curious about this then watch the Google I/O seminar on consuming RESTfull web services http://www.youtube.com/watch?v=xHXn3Kg2IQE

GCM android, Push Notifications not being recieved

I am working on an android app that will recieve push notifications from the GCM server.
I am using php as the 3rd-party server.
I've a few questions.
When I send request to gcm server from my php script it gives me the following response
{"multicast_id":8799227316277290616,"success":1,"failure":0,"canonical_ids":0,"results":[{"message_id":"0:1341388064110557%5d17b789f9fd7ecd"}]}
Now the response seems fine but you can see a % sign in the message_id. Is that ok? if it's not than how am I able to recieve the correct message_ID?
When I use json_decode in my php script and echo this multicastid it gives me something like this
8.7992273162773E+18
and I am sure it will give the same type of value when I'll echo message_id also. So why it is not echoing the correct value?
My last question is that when I send this request which seems right and open my android application there is no notification there. Is it caused by the above errors or there is some other problem?

I had a similar issue with C2DM. The reason was that the android app name was not the same for which I requested the quota. It got fixed once the corrected the package name.

In my case, android application was not running so the push notifications can't be received. I started the app and then I could receive messages.