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Have you ever needed to periodically fetch data from a remote API in your React Native app? Maybe you're building a chat client that needs to poll for new messages, or a dashboard that refreshes every few seconds with updated metrics? Most developers end up writing something like this: useEffect(() => { const interval = setInterval(async () => { const response = await fetch("https://your-api.com/status"); const data = await response.json(); // do something }, 1000); return () => clearInterval(interval); }, []); This works... until it doesn’t: Multiple polling tasks run in parallel and get messy ☠️ You start hitting battery and performance issues

Apr 14, 2025 - 22:11

Have you ever needed to periodically fetch data from a remote API in your React Native app? Maybe you're building a chat client that needs to poll for new messages, or a dashboard that refreshes every few seconds with updated metrics?

Most developers end up writing something like this:

useEffect(() => {
  const interval = setInterval(async () => {
    const response = await fetch("https://your-api.com/status");
    const data = await response.json();
    // do something
  }, 1000);

  return () => clearInterval(interval);
}, []);

This works... until it doesn’t:

Multiple polling tasks run in parallel and get messy ☠️
You start hitting battery and performance issues