AwsSnsKit

What is this?

AwsSnsKit is a solution for integrating Amazon Web Service(AWS) Simple Notification Service(SNS) into a Rails application.

Installation

Add this line to your application's Gemfile:

gem 'aws_sns_kit'

And then execute:

$ bundle

Or install it yourself as:

$ gem install aws_sns_kit

Configuration

Before using aws_sns_kit, you need to generate files using a generator. Specify your model as first argument.

rails generate aws_sns_kit:install MODEL_NAME

ex.

rails generate aws_sns_kit:install User

This generator command create following files.

config/initializers/aws_sns_kit.rb

db/migrate/20140715070941_add_aws_sns_kit_to_users.rb

Then, migrate.

rake db:migrate

Also, you need to configure your initializer file.

Following configuration is for using aws-sdk. More information here. https://github.com/aws/aws-sdk-ruby

#config/initializers/aws_sns_kit.rb

AwsSnsKit.configure do |config|
  config.access_key_id = 'your access_key_id here'
  config.secret_access_key = 'your secret_access_key here'
  config.region = 'your region here'

  #specify PlatformApplicationArn respectively.

  config.end_point = { 
    apns: '',
    apns_sandbox: '', 
    gcm: ''
  }
end

How to use?

APNS(Apple Push Notification Service)

You can use push_notify instance method with your model instance to send push notification via AWS SNS. Before using this method, make sure that your model includes Notifier module from aws_sns_kit.

class User < ActiveRecord::Base
  include AwsSnsKit::Notifier
end

Create a notification payload hash and send it by applying argument to push_notify method.

user = User.first

notification = {
        alert: 'Message received via aws_sns_kit',
        sound: 'bingbong.aiff',
        badge: 2,
        content_available: 1,
        custom_data: { awesome: 'something' }
      }

user.push_notify(notification)

NOTE:

Since AWS SNS can send a notification to multiple platform, aws_sns_kit expect your MODEL to return the name of the platform when sns_platform method is called. Specify your platform name from one of the following to your MODEL's attributes or instance method.

[:apns, :apns_sandbox, :gcm]

# Set platform using model attribute

pry(main)> User.first.sns_platform
=> :apns

# Or specify it using instance method

class User < ActiveRecord::Base
  def sns_platform
    :apns
  end
end

GCM(Google Cloud Messaging)

Work in progress now.

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