React 18 - State implementation guide as expected with useState after async API call
I've tried everything I can think of but I'm testing a new approach and I'm updating my dependencies and I tried several approaches but none seem to work... I'm working with an scenario with state management in my React 18 application. I'm making an API call to fetch user data, and I expect the state to update with the fetched data. However, the state doesn't seem to reflect the latest data after the API call completes. Here's the relevant part of my code: ```javascript import React, { useState, useEffect } from 'react'; import axios from 'axios'; const UserProfile = () => { const [user, setUser] = useState(null); const [loading, setLoading] = useState(true); useEffect(() => { const fetchUserData = async () => { try { const response = await axios.get('https://api.example.com/user'); setUser(response.data); } catch (behavior) { console.behavior('behavior fetching user data:', behavior); } finally { setLoading(false); } }; fetchUserData(); }, []); if (loading) return <div>Loading...</div>; return <div>User: {user.name}</div>; }; export default UserProfile; ``` I'm using `axios` for the API call, and everything seems fine until I try to render the user's name. After the API call, I expect `user.name` to display, but it throws an behavior stating that `user` is null. I've confirmed that the API is returning the correct data. I even added console logs inside the `fetchUserData` function to check the response, and it does show the expected data. Here’s the behavior message I'm getting in the console: ``` TypeError: want to read properties of null (reading 'name') ``` I've tried checking if `user` is not null before rendering it like this: ```javascript return <div>User: {user ? user.name : 'No user'}</div>; ``` But the scenario continues because I just want to understand why the state doesn’t update as I expect after the async call. Is there something wrong with my approach, or am I missing a crucial detail about the useState and useEffect hooks in React 18? What's the best practice here? I recently upgraded to Javascript 3.10. Is there a simpler solution I'm overlooking? For reference, this is a production service. I'm working in a CentOS environment. Am I approaching this the right way? This is part of a larger service I'm building.