CangarooUI

A lightweight and production-ready user interface for cangaroo that emulates the functionality of Wombat:

• view jobs as they happen
• track payloads as they move through the system
• search for errors, orders, payloads
• edit JSON payloads and resend
• retry failed jobs
• resolve errors

Screenshots

Design Goals

• optional
  • users have to opt-into the interface as an add-on to cangaroo -- by default, cangaroo doesn't change
  • backwards-compatible for existing users to upgrade to the newest version
  • users can decide on a per-job basis whether they want that job tracked in the GUI
• general
  • support PushJobs and PollJobs
  • any payload type
  • any DB type
  • any worker (delayed_job, sidekiq, resque, etc -- though only delayedjob is currently supported)
• minimal
  • no monkey-patching
  • no modifications to the cangaroo core
  • only three new DB tables and some ActiveJob callbacks
• simple
  • track jobs through the GUI with a single include in the job class
  • no authentication (leaves people free to use Devise, HTTP Basic, or whatever else they want)
  • no fancy JS to pre-compile or anything, not even jQuery
  • bootstrap styles in vanilla CSS

Installation

Add both cangaroo and the cangaroo_ui gems to your gemfile:

  gem 'cangaroo', '1.3.0'
  gem 'cangaroo_ui', '0.1.0', github: 'ascensionpress/cangaroo_ui'

Next, copy the following migrations into your db/migrate folder and then run them with bundle exec rake db:migrate:

• create records
• create transactions
• create_resolutions
• add job ID to transactions

Next, mount the engine somewhere in the host application's routes file:

  Rails.application.routes.draw do
    mount CangarooUI::Engine => "/"
  end

Next, configure the jobs you want tracked by adding the CangarooUI::InteractiveJob mixin to them, e.g.:

  module Spree
    class UpdateShipmentJob < Cangaroo::PushJob
      include CangarooUI::InteractiveJob # just add this to track in the UI!!

      connection :spree
      path '/update_shipment'
      process_response false

      ....
    end
  end

CangarooUI::InteractiveJob can be added to both PushJobs and PollJobs.

For PollJobs, the mixin also makes available the ::on_success_resolve_duplicates class method, which will configure the UI to automatically resolve duplicate poll jobs once one succeeds.

  module Spree
    class PollShipmentsJob < Cangaroo::PollJob
      include CangarooUI::InteractiveJob

      connection :spree
      path '/get_shipments'
      frequency 3.minutes

      on_success_resolve_duplicates true
    end
  end

This configuration is completely optional, and defaults to false.

Finally: decide how you want to authenticate your application. By default, CangarooUI is completely permission-less. This is by design, allowing you the flexibility to use whichever authentication framework you want. The interface should easily accommodate popular solutions like Devise, or simple ones like HTTP-basic.

And that's it! You should be up and running in no time.