Introduction to WebSockets
WebSockets provide a full-duplex communication channel over a single TCP connection, enabling real-time bidirectional communication.
Setting Up Socket.io
const io = require('socket.io')(3000);Event Handling
Socket.io allows you to emit and listen for custom events between client and server in real-time.
Use Cases
- Chat applications
- Live notifications
- Collaborative tools
- Real-time dashboards
Best Practices
Handle reconnection logic, implement proper error handling, use namespaces for organization, and consider scalability with Redis adapters for multiple servers.