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UI for the Flipper gem
branch: master

README.md

Flipper::UI

UI for the Flipper gem. Note: This is not fully functional yet. The end product will look like this:

flipper web

Installation

Add this line to your application's Gemfile:

gem 'flipper-ui'

And then execute:

$ bundle

Or install it yourself as:

$ gem install flipper-ui

Usage

Rails

Given that you've already initialized Flipper as per the flipper readme:

# config/initializers/flipper.rb
$flipper = Flipper.new(...)

you can mount Flipper::UI to a route of your choice:

# config/routes.rb

YourRailsApp::Application.routes.draw do
  mount Flipper::UI.app($flipper) => '/flipper'
end

Security

You almost certainly want to limit access when using Flipper::UI in production. Using routes constraints is one way to achieve this:

# config/routes.rb

flipper_constraint = lambda { |request| request.remote_ip == '127.0.0.1' }
constraints flipper_constraint do
  mount Flipper::UI.app($flipper) => '/flipper'
end

Another example of a route constrain using the current_user when using Devise or another warden based authentication system:

# initializers/admin_access.rb

class CanAccessFlipperUI
  def self.matches?(request)
    current_user = request.env['warden'].user

    return current_user.present? && current_user.respond_to?(:is_admin?) && current_user.is_admin?
  end
end

# config/routes.rb

constraints CanAccessFlipperUI do
  mount Flipper::UI.app($flipper) => '/flipper'
end

Standalone

Minimal example for Rack:

# config.ru

require 'flipper-ui'
require 'flipper/adapters/memory'

adapter = Flipper::Adapters::Memory.new
flipper = Flipper.new(adapter)

run Flipper::UI.app(flipper)

See examples/basic.ru for a more full example

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Fire up the app (bundle exec rake start)
  4. Start up guard (bundle exec guard for automatic coffeescript/sass compilation and such).
  5. Commit your changes (git commit -am 'Added some feature')
  6. Push to the branch (git push origin my-new-feature)
  7. Create new Pull Request
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