WebSocket Fundamentals in the Browser
Open WebSocket connections, send messages, and handle events with the native WebSocket API.
What Is WebSocket?
WebSocket is a protocol providing full-duplex communication over a single TCP connection. Unlike HTTP, the connection stays open, allowing the server to push data to the client at any time.
Opening a Connection
Create a WebSocket object with a ws:// or wss:// URL. The connection opens asynchronously.
const ws = new WebSocket('wss://api.example.com/ws');
ws.onopen = () => {
console.log('Connection established');
};All lessons in this course
- WebSocket Fundamentals in the Browser
- Using Socket.IO with React
- Building a Real-Time Chat Component
- Reconnection, Error Handling & Cleanup