Learn the core concepts of real-time communication and WebSocket technology.
- What is real-time communication?
- Traditional polling vs WebSockets
- HTTP limitations
- Real-time use cases
- Latency and performance
- Client-server architecture
- Bidirectional communication
- Event-driven messaging
Understand the WebSocket protocol, handshake process, and message formats.
- WebSocket protocol overview
- HTTP to WebSocket upgrade
- Handshake process
- Frame structure
- Message types
- Control frames
- Connection states
- Error handling
Master the native WebSocket API for both client and server implementations.
- WebSocket constructor
- Connection events
- Sending messages
- Receiving messages
- Connection management
- Error handling
- Close events
- Ready states
Learn Socket.IO for robust real-time applications with fallbacks and features.
- Socket.IO introduction
- Server setup
- Client connection
- Event emitters
- Rooms and namespaces
- Broadcasting
- Acknowledgments
- Middleware
Build interactive chat applications with messaging, rooms, and user management.
- Chat architecture design
- Message broadcasting
- User authentication
- Chat rooms
- Private messaging
- Message history
- Online status
- Typing indicators
Implement live data feeds, dashboards, and real-time analytics.
- Data streaming concepts
- Live dashboards
- Real-time analytics
- Financial data feeds
- IoT data streaming
- Chart updates
- Data throttling
- Buffer management
Create real-time multiplayer games and collaborative applications.
- Game state synchronization
- Player actions
- Collision detection
- Lag compensation
- Collaborative editing
- Operational transforms
- Conflict resolution
- Real-time cursors
Secure WebSocket connections with authentication and authorization.
- WebSocket authentication
- Token-based auth
- Session management
- Origin validation
- Rate limiting
- Message validation
- CSRF protection
- SSL/TLS encryption
Handle connection lifecycles, reconnections, and network reliability.
- Connection pooling
- Automatic reconnection
- Heartbeat/ping-pong
- Connection timeouts
- Network detection
- Graceful degradation
- Queue management
- Offline handling
Scale WebSocket applications across multiple servers and handle high loads.
- Horizontal scaling
- Load balancing
- Sticky sessions
- Redis adapter
- Message queuing
- Microservices patterns
- Container orchestration
- Performance monitoring
Test WebSocket connections, message flows, and real-time functionality.
- WebSocket testing strategies
- Unit testing
- Integration testing
- Load testing
- Message mocking
- Connection simulation
- Performance testing
- End-to-end testing
Implement advanced patterns for complex real-time applications.
- Event sourcing
- CQRS with real-time
- Pub/Sub patterns
- Message brokers
- Stream processing
- Real-time analytics
- Edge computing