Build any realtime experience using Ably’s Pub/Sub Ruby SDK, Supported on all popular platforms and frameworks.

Ably Pub/Sub provides flexible APIs that deliver features such as pub-sub messaging, message history, presence, and push notifications. Utilizing Ably’s realtime messaging platform, applications benefit from its highly performant, reliable, and scalable infrastructure.

Find out more:

• Ably Pub/Sub docs.
• Ably Pub/Sub examples.

Everything you need to get started with Ably:

• Quickstart in Pub/Sub using Ruby.
• SDK Setup for Ruby.

Ably aims to support a wide range of platforms and browsers. If you experience any compatibility issues, open an issue in the repository or contact Ably support.

To get started with your project, install the package:

# Create a new Gemfile
echo "source 'https://rubygems.org'" > Gemfile
echo "gem 'ably'" >> Gemfile
# Install the gem
bundle install

To use the Ably Realtime SDK in Ruby, the EventMachine reactor loop must be running. This is required because the Realtime library depends on EventMachine to handle asynchronous events.

Wrap your code inside a EventMachine.run block:

require 'ably'
EventMachine.run do
  client = Ably::Realtime.new(key: 'your-api-key')
  client.connection.connect do
    puts "Connected with connection ID: #{client.connection.id}"
  end

The following code connects to Ably's realtime messaging service, subscribes to a channel to receive messages, and publishes a test message to that same channel.

  # Initialize Ably Realtime client
  realtime_client = Ably::Realtime.new(key: 'your-ably-api-key', client_id: 'me')
  
  # Wait for connection to be established
  realtime_client.connection.on(:connected) do
    puts 'Connected to Ably'
    
    # Get a reference to the 'test-channel' channel
    channel = realtime_client.channels.get('test-channel')
    
    # Subscribe to all messages published to this channel
    channel.subscribe do |message|
      puts "Received message: #{message.data}"
    end
    
    # Publish a test message to the channel
    channel.publish 'test-event', 'hello world'
  end
end

The CHANGELOG.md contains details of the latest releases for this SDK. You can also view all Ably releases on changelog.ably.com.

Read the CONTRIBUTING.md guidelines to contribute to Ably.

For help or technical support, visit Ably's support page. You can also view the community reported Github issues or raise one yourself.