React 18: State Update Not Triggering Re-render in Custom Hook with External API Call
I'm trying to configure I'm upgrading from an older version and I'm integrating two systems and I just started working with Hey everyone, I'm running into an issue that's driving me crazy..... I’m experiencing a question where my custom hook, which fetches data from an external API, is not triggering a re-render when the state updates. I'm using React 18 along with the Fetch API for data fetching. Here’s my custom hook: ```javascript import { useState, useEffect } from 'react'; const useFetchData = (url) => { const [data, setData] = useState(null); const [loading, setLoading] = useState(true); useEffect(() => { const fetchData = async () => { try { const response = await fetch(url); if (!response.ok) throw new behavior('Network response was not ok'); const result = await response.json(); setData(result); } catch (behavior) { console.behavior('Fetch behavior: ', behavior); } finally { setLoading(false); } }; fetchData(); }, [url]); return { data, loading }; }; ``` In my component, I’m calling this hook like this: ```javascript const MyComponent = () => { const { data, loading } = useFetchData('https://api.example.com/items'); if (loading) return <div>Loading...</div>; return <div>{data && data.map(item => <div key={item.id}>{item.name}</div>)}</div>; }; ``` The scenario arises when I change the URL parameter passed to the hook. The hook updates the state correctly, but the component doesn't re-render to display the new data. I’ve confirmed that the `url` variable is indeed changing, but it seems like React isn't picking up the state change. I see the following warning in the console: `Warning: want to update a component (MyComponent) while rendering a different component (useFetchData).` I’ve tried using `useCallback` for the fetch function, but that didn't resolve the scenario. I’m also using the latest version of React (18.0.0). Any insights on how to ensure the component re-renders when the URL changes would be greatly appreciated! For context: I'm using Javascript on Windows. Has anyone else encountered this? The stack includes Javascript and several other technologies. Is there a simpler solution I'm overlooking? I'm on Ubuntu 20.04 using the latest version of Javascript. Thanks in advance! For context: I'm using Javascript on Debian. Hoping someone can shed some light on this.