WebSockets Cheat Sheet

WebSocket Connection

const ws = new WebSocket("ws://localhost:8080");

Event Handlers

ws.onopen = () => console.log("Connected");
ws.onmessage = (event) => console.log(event.data);
ws.onerror = (error) => console.error(error);
ws.onclose = () => console.log("Disconnected");

Sending Messages

ws.send("Hello Server");
ws.send(JSON.stringify({ type: "message", data: "Hello" }));