Action Cable: Real-Time WebSocket Communication

Action Cable seamlessly integrates WebSockets with Rails, enabling real-time features written in Ruby. It's a full-stack solution providing both client-side JavaScript and server-side Ruby frameworks for instant, bidirectional communication.

When to Use Action Cable

• Live Chat & Messaging: Real-time message delivery and presence
• Notifications: Instant push notifications to connected users
• Presence Tracking: Show online status, active users, typing indicators
• Live Data Updates: Real-time feeds, dashboards, collaborative editing
• Multiplayer Features: Gaming, shared workspaces, synchronized state
• Activity Streams: Live activity feeds and live updates
• Form Collaboration: Real-time form input sharing and validation

Core Concepts

Action Cable introduces three key architectural layers: