Getting started with Ruby SDK

1 minute read

This section describes how to set up and install the Ruby SDK and how to deploy a feature flag.

Step 1 - Setting up

The following are prerequisites for installing the Ruby SDK:

  1. Create a CloudBees Feature Management account. See Signup Page to create an account.

  2. Get your environment key. Copy your environment key from App settings > Environments > Key.

Step 2 - Installing the Ruby SDK

Add the CloudBees Feature Management Ruby library to your application by running the following commands:

# Add the SDK to your application
$ gem install rox-rollout

Add the following lines of code to your application:

# Import SDK
require 'rox/server/rox_server'

# Create Roxflags in the Flags container class
class Flags
  attr_accessor :enableTutorial, :titleColors, :page, :percentage

  def initialize
    # Define the feature flags
    @enableTutorial =
    @titleColors ='red', ['red', 'blue', 'green'])
    @page =, [1, 2, 3])
    @percentage =, [10.5, 50.0, 99.9])

flags =

# Register the flags container

# Setup the environment key

# Boolean flag example
puts "enableTutorial is #{flags.enableTutorial.enabled? ? "enabled" : "disabled"}"

# String flag example
puts "titleColors is #{flags.titleColors.value}"

# Int flag example
puts "page is #{}"

# Double flag example
puts "percentage is #{flags.percentage.value}"

Container class registration and environment key setup

  • You cannot call Rox.setup() twice in the same runtime.

Run your application

Running the application

The flag name is automatically added to the CloudBees Feature Management dashboard after running the application.