Push Notifications on Android Platform using a Rails web-server?

I think what you are looking for is Google Cloud Messaging for Android. Its a service that allows you to send push notifications to android phone. Create a project in Google Console for your application. Obtain your project id and API key( Google for detailed procedure) and then in the mobile app you have to register the user to the GCM server and obtain the registration id of the user. Store this id in your server. Now whenever you get a notification from Facebook, make a post to GCM server with the registration id of the user. GCM will notify the android user with its push notification service. A similar question was asked on StackOverflow , you can follow my answer there too. Hope this answers your question :). link to my answer on stackoverflow: http://stackoverflow.com/questions/25228669/setting-up-server-side-for-gcm-in-an-android-app/25228724#25228724 link to go through for GCM setup: http://stackoverflow.com/questions/25228669/setting-up-server-side-for-gcm-in-an-android-app/25228724#25228724

You can use websockets for ruby to establish the client-server communication. For example use the https://github.com/imanel/websocket-rubyhttps://github.com/imanel/websocket-rubyhttps://github.com/imanel/websocket-ruby for it.Apple Applications setup:-$ openssl pkcs12 -in <your .p12 filename> -out <your output .pem filename>.pem -nodes -clcerts app = RailsPushNotifications::APNSApp.new app.apns_dev_cert = File.read('path/to/your/development/certificate.pem') app.apns_prod_cert = File.read('path/to/your/production/certificate.pem') app.sandbox_mode = true app.save Android Applications setup:- app = RailsPushNotifications::GCMApp.new app.gcm_key = '<your app api key>' app.save WindowsPhone Applications setup:- app = RailsPushNotifications::MPNSApp.new app.cert = File.read('path/to/your/certificate.pem') app.save Apple notifications app = <Your Apple app> notification = app.notifications.create( destinations: [ 'Your first destination token', 'Your second destination token' ], data: { aps: { alert: 'Hello APNS World!', sound: 'true', badge: 1 } } ) GCM Notifications app = <Your GCM app> notification = app.notifications.create( destinations: [ 'Your first destination token', 'Your second destination token' ], data: { text: 'Hello GCM World!' } ) WindowsPhone Notifications app = <Your WindowsPhone app> notification = app.notifications.create( destinations: [ 'Your first destination url', 'Your second destination url' ], data: { title: 'Title', message: 'Hello MPNS World!', type: :toast } )