I read basic example for implementing google gcm. I developed small client side android application which successfully gives me registration id from gcm server.. now on server side I am using Ruby on rails hence we use this gem for implementing server side of gcm https://github.com/dondeng/gcm_on_rails. I pass my registration id to to my server.
I successfully ran these commands
device = Gcm::Device.create(:registration_id => "XXXXXXXXXXXXXXXXXXXXXX")
notification = Gcm::Notification.new
notification.device = device
notification.collapse_key = "updates_available"
notification.delay_while_idle = true
notification.data = {:registration_ids => ["RegistrationID"], :data => {:message_text => "Get on cloud nine"}}
notification.save
used to deliver notifications:
$ rake gcm:notifications:deliver
my rake command running without any error. But after completion of all these tasks my device not receiving any message.. I don't know whats going on in background. How to confirm that sent message properly receive by device.. Need Help... Thank you....
Debugging GCM messages can be cumbersome and difficult.
One possible reason is a wrong API key for GCM, which must be defined in the configuration files. If you use the wrong API key, then you might get a success response from the server {:code=>200, :message=>nil}, although no message has been sent. In this case go to the Google API Console and look up the right key.
Another possible reason is a wrong REGISTRATION_ID for the device. if the REGISTRATION_ID is not correct you may get an NotRegistered or InvalidRegistration error, which is not always recognized by the gcm_on_rails plugin (at the moment). Use the following curl command to debug the API through the console (insert your API_KEY and the REGISTRATION_ID of the device).
curl --header "Authorization: key=API_KEY" \
--header Content-Type:"application/json" \
https://android.googleapis.com/gcm/send \
-d "{\"registration_ids\":[\"REGISTRATION_ID\"],
\"data\":{\"message_text\":\"Test, Test\"}}"
A successful / unsuccessful attempt to call the Gcm API should look like this:
{"multicast_id":7961..,"success":1,"failure":0,"canonical_ids":1,
"results":[{"registration_id":"..","message_id":"0:.."}]}
{"multicast_id":7961..,"success":0,"failure":1,"canonical_ids":0,
"results":[{"error":"NotRegistered"}]}
Finally another reason is an invalid key in the day: do not use a reserved word like message_type as a key in the data hash. It will return a status code 200, but it will not deliver any notification. message_type is one of the advanced options (took me more than an hour to find that out).
If you have no error on server-side, maybe you are not handling correctly the event in your Android App.
Follow this guidelines: http://developer.android.com/guide/google/gcm/gs.html#android-app, and write logs for debug.
