Mixpanel is a real-time analytics service that helps companies understand how users interact with web applications. mixpanel.com

• Track events with properties directly from your backend.

• Track events with properties through javascript using a rack middleware.

gem install mixpanel

In your environment config file add this.

Rails::Initializer.run do |config|

  config.middleware.use "MixpanelMiddleware", "YOUR_MIXPANEL_API_TOKEN"

If you want to use the asynchronous version of Mixpanel’s javascript API

Rails::Initializer.run do |config|

  config.middleware.use "MixpanelMiddleware", "YOUR_MIXPANEL_API_TOKEN", :async => true

In your application_controller class add a method to instance mixpanel.

before_filter :initialize_mixpanel

def initialize_mixpanel
  @mixpanel = Mixpanel.new("YOUR_MIXPANEL_API_TOKEN", request.env, true)
end

Then in each request you want to track some event you can use:

To track events directly from your backend…

@mixpanel.track_event("Sign in", {:some => "property"})

To track events after response with javascript…

@mixpanel.append_event("Sign in", {:some => "property"})

To execute any javascript API call

@mixpanel.append_api("register", {:some => "property"})
@mixpanel.append_api("identify", "Unique Identifier")

There are two forms of async operation:

• Using MixpanelMiddleware, events are queued via Mixpanel#append_event and inserted into a JavaScript block within the HTML response.

• Using Mixpanel.new(…, …, true), events are sent to a subprocess via a pipe and the sub process which asynchronously send events to Mixpanel. This process uses a single thread to upload events, and may start dropping events if your application generates them at a very high rate.

• Alvaro Gil (Author)

• Nathan Baxter

• Jake Mallory

• Logan Bowers