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Example Mobile Push Notification Service in Rails

Mo Omer
Mo Omer

This document provides steps for creating a mobile push notification service using Ruby on Rails. It discusses creating models for users, devices, and permitted apps. It also covers setting up routes and versioning the API. Authentication is implemented using HTTP authentication and tokens. Background jobs are added using Sidekiq to handle sending notifications. Code examples are provided for iOS and Android workers to interface with APNs and GCM respectively to send push notifications from the Rails backend.

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Create Your Own: Mobile Push-Noti鍖cation Service Monday, January 13, 14
Starting Point To expedite the tutorial process, Ive already created three models: User Device Permitted Apps Monday, January 13, 14
app/models/user.rb app/models/device.rb Monday, January 13, 14
app/models/permitted_app.rb Permitted App Migration Monday, January 13, 14
User and Device Migrations Monday, January 13, 14
Step 2(ish): Routes con鍖g/routes.rb lib/app_constraints.rb Monday, January 13, 14
Behold, a versioned API So, /api/users/ will default to version 1 of our API. Is this a good idea? Theres a LOT of discussion about versioning APIs... http://apiux.com/2013/05/14/api-versioning/ https://mathieu.fenniak.net/aint-nobody-got-time-for-that-api-versioning/ http://railscasts.com/episodes/350-rest-api-versioning Do what feels comfortable / correct. Im not too keen on having a default API route which may change behind-the-scenes, and inadvertently break applications that use the API. Monday, January 13, 14
Controllers and Authentication Monday, January 13, 14
Controllers cont. Additional info http://railscasts.com/episodes/350-rest-api-versioning?view=asciicast http://collectiveidea.com/blog/archives/2013/06/13/building-awesome-rails-apis-part-1/ http://railsware.com/blog/2013/04/08/api-with-ruby-on-rails-useful-tricks https://github.com/rails-api/active_model_serializers Monday, January 13, 14
Authentication Additional info http://api.rubyonrails.org/classes/ActionController/HttpAuthentication/Token.html http://railscasts.com/episodes/352-securing-an-api?view=asciicast Monday, January 13, 14
Authentication in Action Monday, January 13, 14
Cool, we have a Users Resource which is accessible via the routes weve created on /api/users... what does that have to do with sending push-noti鍖cations to phones? Monday, January 13, 14
How do Push Noti鍖cations work? (iOS) Phase 1 Good documentation of the process can be found on Adobes site for Adobe AIR (seriously) http://www.adobe.com/devnet/air/articles/ios-push-noti鍖cations.html Monday, January 13, 14 Phase 2
Next, install a background processing system of your choice https://www.ruby-toolbox.com/categories/Background_Jobs Monday, January 13, 14
iOS worker for Sidekiq Monday, January 13, 14
Android worker for Sidekiq Monday, January 13, 14
Final example A 鍖nal example with some additional features is available [1] Primary Gems used: Much credit is due to Ryan Bates for the API skeleton [2] and authentication implementation [3], and wellwithme.com for their original Android/iOS push noti鍖cations tutorial. [4] Sidekiq Sidetiq Grocer Friendly ID GCM Active Model Serializers [1] https://bitbucket.org/momer/example-mobile-pns/src [2] http://railscasts.com/episodes/350-rest-api-versioning [3] http://railscasts.com/episodes/352-securing-an-api [4] http://blog.wellwith.me/how-to-send-ios-and-android-noti鍖cations-from-your-rails-backend Monday, January 13, 14

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