Google Cloud Messaging in Action !

Devoxx Antwerp 2013

Transcript

1. @Tom404_ #DV13-gcm Google Cloud Messaging in action! Thomas Guerin Xebia France
2. @Tom404_ #DV13-gcm Google Cloud Messaging
3. @Tom404_ #DV13-gcm Google Cloud Messaging • Push message service
4. @Tom404_ #DV13-gcm Google Cloud Messaging • Push message service • No more client polling
5. @Tom404_ #DV13-gcm Google Cloud Messaging • Push message service • No more client polling • Messages are queued while device is offline
6. @Tom404_ #DV13-gcm Google Cloud Messaging • Push message service • No more client polling • Messages are queued while device is offline • Two types of messages • send-to-sync • with payload
7. @Tom404_ #DV13-gcm Send-to-sync message
8. @Tom404_ #DV13-gcm Send-to-sync message • Collapsible message
9. @Tom404_ #DV13-gcm Send-to-sync message • Collapsible message • Tickle to notify a need of update
10. @Tom404_ #DV13-gcm Message with payload
11. @Tom404_ #DV13-gcm Message with payload • Non-collapsible message
12. @Tom404_ #DV13-gcm Message with payload • Non-collapsible message • Up to 4 kb of payload data
13. @Tom404_ #DV13-gcm Message with payload • Non-collapsible message • Up to 4 kb of payload data • Delivery order not guaranteed
14. @Tom404_ #DV13-gcm Message with payload • Non-collapsible message • Up to 4 kb of payload data • Delivery order not guaranteed • Max 100 non-collapsible messages per queue
15. @Tom404_ #DV13-gcm Main advantages • Reduces update latency ! • Preserves battery life ! • Part of Google Play Services ! • Available back to Android 2.2
16. @Tom404_ #DV13-gcm Main advantages • No quota limits ! • Unicast/multicast ! • App doesn’t need to be running to receive messages
17. @Tom404_ #DV13-gcm Data flow Server Mobile Registration flow Message flow
18. @Tom404_ #DV13-gcm Data flow 1 Server Mobile Registration flow Message flow
19. @Tom404_ #DV13-gcm Data flow 1 2 Server Mobile Registration flow Message flow
20. @Tom404_ #DV13-gcm Data flow 1 3 2 Server Mobile Registration flow Message flow
21. @Tom404_ #DV13-gcm Data flow 1 3 2 a Server Mobile Registration flow Message flow
22. @Tom404_ #DV13-gcm Data flow 1 3 2 a b Server Mobile Registration flow Message flow
23. @Tom404_ #DV13-gcm Prerequisites
24. @Tom404_ #DV13-gcm Prerequisites • Google account
25. @Tom404_ #DV13-gcm Prerequisites • Google account • Create a project in https://cloud.google.com/console
26. @Tom404_ #DV13-gcm Prerequisites • Google account • Create a project in https://cloud.google.com/console • Project number
27. @Tom404_ #DV13-gcm Prerequisites • Google account • Create a project in https://cloud.google.com/console • Project number • Server API key
28. @Tom404_ #DV13-gcm From server to GCM
29. @Tom404_ #DV13-gcm Simple as a POST
30. @Tom404_ #DV13-gcm Simple as a POST • POST request to https://android.googleapis.com/gcm/send
31. @Tom404_ #DV13-gcm Simple as a POST • POST request to https://android.googleapis.com/gcm/send • Two headers required • Content-Type • Authorization
32. @Tom404_ #DV13-gcm Simple as a POST • POST request to https://android.googleapis.com/gcm/send • Two headers required • Content-Type • Authorization • Specific format
33. @Tom404_ #DV13-gcm {   ! ! ! ! ! ! ! ! ! }   Message format "collapse_key":  "your_collapse_key", "time_to_live":  108, "delay_while_idle":  true, "data":  {     "message":  "Hi  from  GCM!"   }, "registration_ids":  ["1",  "2"] "restricted_package_name":  "com.devoxx.gcm"  , "dry_run":  false,
34. @Tom404_ #DV13-gcm {   ! ! ! ! ! ! ! ! ! }   Message format "collapse_key":  "your_collapse_key", "time_to_live" "delay_while_idle" "data"   }, "registration_ids" "restricted_package_name" "dry_run"
35. @Tom404_ #DV13-gcm {   ! ! ! ! ! ! ! ! ! }   Message format "collapse_key" "time_to_live":  108, "delay_while_idle" "data"   }, "registration_ids" "restricted_package_name" "dry_run"
36. @Tom404_ #DV13-gcm {   ! ! ! ! ! ! ! ! ! }   Message format "collapse_key" "time_to_live" "delay_while_idle":  true, "data"   }, "registration_ids" "restricted_package_name" "dry_run"
37. @Tom404_ #DV13-gcm {   ! ! ! ! ! ! ! ! ! }   Message format "collapse_key" "time_to_live" "delay_while_idle" "data":  {     "message":  "Hi  from  GCM!"   }, "registration_ids" "restricted_package_name" "dry_run"
38. @Tom404_ #DV13-gcm {   ! ! ! ! ! ! ! ! ! }   Message format "collapse_key" "time_to_live" "delay_while_idle" "data"   }, "registration_ids" "restricted_package_name":  "com.devoxx.gcm"  , "dry_run"
39. @Tom404_ #DV13-gcm {   ! ! ! ! ! ! ! ! ! }   Message format "collapse_key" "time_to_live" "delay_while_idle" "data"   }, "registration_ids" "restricted_package_name" "dry_run":  false,
40. @Tom404_ #DV13-gcm {   ! ! ! ! ! ! ! ! ! }   Message format "collapse_key" "time_to_live" "delay_while_idle" "data"   }, "registration_ids":  ["1",  "2"] "restricted_package_name" "dry_run"
41. @Tom404_ #DV13-gcm var  request  =  require('request');   ! ...   ! request(          {      method:  'POST',                  uri:"https://android.googleapis.com/gcm/send",                  headers:{'Content-­‐type':  'application/json',  'Authorization':  'key=YOUR_KEY'},                  json:{                          'registration_ids':  ['1',  '2',  '3',  '4',  '5',  '6'],                          'collapse_key':  'Update  now'                  }          },function(err,res,gcmResult){                  //  Handle  the  result          }   ) Sample request
42. @Tom404_ #DV13-gcm {        "multicast_id":  216,      "success":  3,      "failure":  3,      "canonical_ids":  1,      "results":  [          {  "message_id":  "1:0408"  },          {  "error":  "Unavailable"  },          {  "error":  "InvalidRegistration"  },          {  "message_id":  "1:1516"  },          {  "message_id":  "1:2342",  "registration_id":  "32"  },          {  "error":  "NotRegistered"}      ]   }   Response format
43. @Tom404_ #DV13-gcm From GCM to device
44. @Tom404_ #DV13-gcm   Permissions
45. @Tom404_ #DV13-gcm   Permissions <uses-­‐permission  android:name="android.permission.INTERNET"  />
46. @Tom404_ #DV13-gcm   Permissions <uses-­‐permission  android:name="android.permission.INTERNET"  /> <uses-­‐permission  android:name="android.permission.GET_ACCOUNTS"  />
47. @Tom404_ #DV13-gcm   Permissions <uses-­‐permission  android:name="android.permission.INTERNET"  /> <uses-­‐permission  android:name="android.permission.GET_ACCOUNTS"  /> <uses-­‐permission  android:name="android.permission.WAKE_LOCK"  />
48. @Tom404_ #DV13-gcm   Permissions <uses-­‐permission  android:name="android.permission.INTERNET"  /> <uses-­‐permission  android:name="android.permission.GET_ACCOUNTS"  /> <uses-­‐permission  android:name="android.permission.WAKE_LOCK"  /> <uses-­‐permission  android:name="com.google.android.c2dm.permission.RECEIVE"  />
49. @Tom404_ #DV13-gcm   Permissions <uses-­‐permission  android:name="android.permission.INTERNET"  /> <uses-­‐permission  android:name="android.permission.GET_ACCOUNTS"  /> <uses-­‐permission  android:name="android.permission.WAKE_LOCK"  /> <uses-­‐permission  android:name="com.google.android.c2dm.permission.RECEIVE"  /> <permission          android:name="com.devoxx.gcm.permission.C2D_MESSAGE"          android:protectionLevel="signature"  />   <uses-­‐permission  android:name="com.devoxx.gcm.permission.C2D_MESSAGE"  />
50. @Tom404_ #DV13-gcm private  boolean  checkPlayServices()  {          int  resultCode  =  GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);                    if  (resultCode  !=  ConnectionResult.SUCCESS)  {                  if  (GooglePlayServicesUtil.isUserRecoverableError(resultCode))  {                          GooglePlayServicesUtil.getErrorDialog(resultCode,  this,                                          PLAY_SERVICES_RESOLUTION_REQUEST).show();                  }  else  {                          Log.i(TAG,  "This  device  is  not  supported.");                          finish();                  }                  return  false;          }          return  true;   }   Play services, are you there?
51. @Tom404_ #DV13-gcm ! ! ! ! ! Registration try  {           ! ! ! ! ! ! }  catch  (IOException  e)  {          Log.i(TAG,  "Registration  failed");   }          GoogleCloudMessaging  gcm  =  GoogleCloudMessaging.getInstance(context); String  registrationId  =  gcm.register(getString(R.string.sender_id));        if  (sendRegistrationIdToServer(registrationId))  {                          } storeRegistrationId(context,  registrationId);
52. @Tom404_ #DV13-gcm ! ! ! ! ! Registration try         ! ! ! ! ! ! }           }          GoogleCloudMessaging  gcm  =  GoogleCloudMessaging.getInstance(context); String  registrationId  =  gcm.                                } storeRegistrationId
53. @Tom404_ #DV13-gcm ! ! ! ! ! Registration try  {           ! ! ! ! ! ! }  catch  (IOException  e)  {          Log.i(TAG,  "Registration  failed");   }          GoogleCloudMessaging  gcm  =  GoogleCloudMessaging. String  registrationId  =  gcm.register(getString(R.string.sender_id));                                } storeRegistrationId
54. @Tom404_ #DV13-gcm ! ! ! ! ! Registration try         ! ! ! ! ! ! }           }          GoogleCloudMessaging  gcm  =  GoogleCloudMessaging. String  registrationId  =  gcm.        if  (sendRegistrationIdToServer(registrationId))  {                          } storeRegistrationId
55. @Tom404_ #DV13-gcm ! ! ! ! ! Registration try         ! ! ! ! ! ! }           }          GoogleCloudMessaging  gcm  =  GoogleCloudMessaging. String  registrationId  =  gcm.                                } storeRegistrationId(context,  registrationId);
56. @Tom404_ #DV13-gcm public  class  GcmBroadcastReceiver  extends  WakefulBroadcastReceiver  {   !        @Override          public  void  onReceive(Context  context,  Intent  intent)  {                  ComponentName  comp  =  new  ComponentName(context.getPackageName(),                                  GcmMessageHandlerIntentService.class.getName());                                    startWakefulService(context,  intent.setComponent(comp));                                    setResultCode(Activity.RESULT_OK);          }   ! }   Message reception
57. @Tom404_ #DV13-gcm ! ! Message reception @Override   protected  void  onHandleIntent(Intent  intent)  {           ! ! ! ! ! ! ! ! ! ! ! ! ! }        Bundle  extras  =  intent.getExtras();          if  (!extras.isEmpty())  {                     ! ! ! ! ! ! ! ! !      }  GoogleCloudMessaging  gcm  =  GoogleCloudMessaging.getInstance(this);                String  messageType  =  gcm.getMessageType(intent);                  if  (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType))  {   !                }  else  if  (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType))  {   !                }  else  if  (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType))  {                    String  message  =  intent.getStringExtra("message");                  } GcmBroadcastReceiver.completeWakefulIntent(intent);
58. @Tom404_ #DV13-gcm ! ! Message reception @Override protected       ! ! ! ! ! ! ! ! ! ! ! ! ! }        Bundle  extras  =  intent.getExtras();          if  (!extras.isEmpty())  {                     ! ! ! ! ! ! ! ! !      }  GoogleCloudMessaging  gcm  =  GoogleCloudMessaging.getInstance(this);                String  messageType  =  gcm.                 !                }   !                }                    String  message  =  intent.                } GcmBroadcastReceiver.
59. @Tom404_ #DV13-gcm ! ! Message reception @Override protected       ! ! ! ! ! ! ! ! ! ! ! ! ! }        Bundle  extras  =  intent.                         ! ! ! ! ! ! ! ! !      }  GoogleCloudMessaging  gcm  =  GoogleCloudMessaging.                String  messageType  =  gcm.getMessageType(intent);                  if  (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType))  {   !                }  else  if  (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType))  {   !                }  else  if  (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType))  {                    String  message  =  intent.getStringExtra("message");                  } GcmBroadcastReceiver.
60. @Tom404_ #DV13-gcm ! ! Message reception @Override protected       ! ! ! ! ! ! ! ! ! ! ! ! ! }        Bundle  extras  =  intent.                         ! ! ! ! ! ! ! ! !      }  GoogleCloudMessaging  gcm  =  GoogleCloudMessaging.                String  messageType  =  gcm.                 !                }   !                }                    String  message  =  intent.                } GcmBroadcastReceiver.completeWakefulIntent(intent);
61. @Tom404_ #DV13-gcm What’s new?
62. @Tom404_ #DV13-gcm What’s new?
63. @Tom404_ #DV13-gcm What’s new? • GCM HTTP
64. @Tom404_ #DV13-gcm What’s new? • GCM HTTP • Upstream (GCM Cloud Connection Server)
65. @Tom404_ #DV13-gcm What’s new? • GCM HTTP • Upstream (GCM Cloud Connection Server) • User notifications
66. Demo @Tom404_ #DV13-gcm