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The Realtime Framework Pub/Sub messaging system

Part of the The Realtime® Framework, Realtime Cloud Messaging (aka ORTC) is a secure, fast and highly scalable cloud-hosted Pub/Sub real-time message broker for web and mobile apps.

If your website or mobile app has data that needs to be updated in the user’s interface as it changes (e.g. real-time stock quotes or ever changing social news feed) Realtime Cloud Messaging is the reliable, easy, unbelievably fast, “works everywhere” solution.

The Ruby sample apps

These sample apps use the Realtime® Framework Pub/Sub Ruby library to connect, send and receive messages through a Realtime® Server in the cloud.


The Realtime® Framework Pub/Sub Ruby library requires the setup of the following packages:

  • faye/websocket (gem install faye-websocket)
  • json (gem install json)
  • eventmachine (gem install eventmachine)

NOTE: For simplicity these samples assume you're using a Realtime® Framework developers' application key with the authentication service disabled (every connection will have permission to publish and subscribe to any channel). For security guidelines please refer to the Security Guide.

Don't forget to replace YOUR_APPLICATION_KEY and YOUR_APPLICATION_PRIVATE_KEY with your own application key. If you don't already own a free Realtime® Framework application key, get one now.

Install gem from RubyGems.org

gem install ortc


The complete Realtime® Cloud Messaging reference documentation is available here