Use Split with Heroku RedisToGo

It is very easy.
As mentioned in readme you can set the redis connection url
And since there is an ENV inside Heroku if you use RedisToGo, just use it:

# Make Split use Redis To Go on Heroku
Split.redis = ENV["REDISTOGO_URL"] if ENV["REDISTOGO_URL"]

Here is a config file of mine :)

# config/initializers/split.rb
Split.configure do |config|
  # config.robot_regex = /my_custom_robot_regex/ # Should set it
  # config.ignore_ip_addresses << '81.19.48.130' # You should set it using SettingsLogic or something
  config.db_failover = true # handle redis errors gracefully
  config.db_failover_on_db_error = proc{|error| Rails.logger.error(error.message) }
  config.allow_multiple_experiments = true # It's fine for me, but might not for you
  config.enabled = true
end

Split::Dashboard.use Rack::Auth::Basic do |username, password|
  username == 'fire_in' && password == 'the_hole' # This one is fake :P
end

if ENV["REDISTOGO_URL"]
   uri = URI.parse(ENV["REDISTOGO_URL"])
   namespace = ["split", "myapp", Rails.env].join(":")

   redis = Redis.new(host: uri.host,
                     port: uri.port,
                     password: uri.password,
                     thread_safe: true
                    )

   redis_namespace = Redis::Namespace.new(namespace, redis: redis)

   Split.redis = redis_namespace
end

Happy A/B Testing! :3