How do you implement WebSocket connections in React Native?

Question

Accepted Answer

**WebSocket API:**
```tsx
const ws = new WebSocket("wss://api.example.com/ws");

ws.onopen = () => {
  ws.send(JSON.stringify({ type: "subscribe", channel: "prices" }));
};

ws.onmessage = (event) => {
  const data = JSON.parse(event.data);
  updatePrices(data);
};

ws.onerror = (error) => {
  console.error("WebSocket error:", error);
};

ws.onclose = () => {
  // Implement reconnection
  setTimeout(connect, 3000);
};
```

**Socket.io alternative:**
```tsx
import { io } from "socket.io-client";

const socket = io("wss://api.example.com");
socket.on("priceUpdate", handlePriceUpdate);
```

**Best practices:**
- Handle reconnection logic
- Implement heartbeat/ping
- Close connections on unmount

React Native: How do you implement WebSocket connections in React Native?