Do you have experience working with WebSocket for real-time data exchange?

Yes, I have experience working with WebSocket for real-time data exchange. For example, I implemented a chat application where WebSocket provided bidirectional communication between the client and server, allowing instant message transmission without the need for constant polling of the server. This significantly reduced latency and load.

An example of a simple client connection using WebSocket:

const socket = new WebSocket('wss://example.com/socket');
socket.onopen = () => {
  console.log('Connection established');
  socket.send('Hello server!');
};
socket.onmessage = (event) => {
  console.log('Received message:', event.data);
};
socket.onerror = (error) => {
  console.error('WebSocket error:', error);
};
socket.onclose = () => {
  console.log('Connection closed');
};

This approach allows for efficient implementation of real-time applications, such as trading platforms, games, or monitoring systems.