✅ Define "real-time" in web development and understand its evolution, along with the benefits and common use cases of live updates in modern web applications.
✅ Differentiate between various real-time communication technologies, including polling, long-polling, Server-Sent Events (SSE), and WebSockets, and grasp the core mechanics of the WebSocket protocol.
✅ Implement real-time features in Ruby on Rails applications using ActionCable, understanding its architecture, components, and how to set it up.
✅ Master ActionCable connections, including establishing, authorizing, and managing multiple client connections.
✅ Develop and utilize ActionCable channels, learning how to create broadcastable channels, manage subscriptions, and broadcast data effectively.
✅ Build practical real-time applications such as live feeds, chat systems, and interactive dashboards, integrating ActionCable with both backend logic and frontend JavaScript.
✅ Explore advanced ActionCable features, including streams, private and public channels, and custom channel actions for granular control over real-time updates.
✅ Synchronize real-time data efficiently, handling updates, deletions, and concurrent modifications across connected clients.
✅ Integrate ActionCable with background jobs using Active Job to offload time-consuming tasks and provide real-time progress updates.
✅ Optimize ActionCable for performance and scalability, addressing bottlenecks, managing connections, and tuning server-side configurations.
✅ Develop robust frontend implementations for ActionCable using JavaScript, handling subscriptions, callbacks, error handling, and reconnection logic.
✅ Design and implement real-time dashboards, analytics, and notification systems to provide instant insights and user engagement.
✅ Adapt ActionCable integrations to popular frontend frameworks like React and Vue, managing WebSocket connections and state within component lifecycles.
✅ Implement real-time search, filtering, and collaborative tools such as document editing and whiteboarding.
✅ Test ActionCable implementations thoroughly, including unit, integration, and frontend testing strategies.
✅ Deploy ActionCable applications effectively, understanding server choices, production configurations, and scaling strategies.
✅ Understand advanced WebSocket concepts and evaluate alternative real-time libraries and protocols, including WebRTC and GraphQL Subscriptions.
✅ Apply essential security best practices for real-time applications, mitigating common vulnerabilities and securing WebSocket connections.
✅ Evaluate and choose the most appropriate real-time solution for diverse project needs, considering complexity, scalability, and specific use cases.
