Android Cloud to Device Messaging Framework for Event Machine

Send push notifications to Android devices.

See Google's Documention to learn more.

Usage

require "em-c2dm"

EM::C2DM.authenticate(username, password)
    
EM.run do
  EM::C2DM.push("registration_id", :alert => "hi!", :collapse_key => "required")
end

Custom Params

You can add custom params (which will be converted to data.<KEY>):

EM::C2DM.push(registration_id,
  :alert        => "Hello!",
  :collapse_key => "required",
  :custom       => "data",
  :awesome      => true
)

Response Callback

You can register a response callback to check success and handle errors:

EM::C2DM.push("registration_id", :alert => "hi!") do |response|
  if response.success?
    puts "success! id=#{response.id}" # ID of sent message
  else
    case response.error
    when "InvalidToken"
      # reauthenticate
    when "InvalidRegistration"
      # clear our registration id
    when "RetryAfter"
      # pause sending for response.retry_after seconds
    end        
  end
end

Testing

Deliveries

If you include em-c2dm/test_helper no deliveries will be made.

Instead, EM::C2DM.deliveries will be populated with EM::C2DM::Notification object.

require "em-c2dm"
require "em-c2dm/test_helper"

expect {
  EM::C2DM.push("reg_id", :alert => "hi!", :collapse_key => "foo")
}.to change { EM::C2DM.deliveries.size }.by(1)

notification = EM::C2DM.deliveries.first
notification.should be_an_instance_of(EM::C2DM::Notification)
notification.params.should == {
  "registration_id" => "reg_id",
  "collapse_key"    => "foo",
  "data.alert"      => "hi!"
}

Stubbing Responses

You can also provide stubbed responses to yield to your callbacks.

response = EM::C2DM::Response.new(
  :status => 200,
  :id     => "abc",
  :error  => "QuotaExceeded"
)

EM::C2DM.stub!(:push).and_yield(response)

Contributing

Please feel free to fork and update this!