Handling multiple asynchronous API calls in React with useEffect and dependencies
I'm upgrading from an older version and Quick question that's been bugging me - I'm stuck on something that should probably be simple... I've been banging my head against this for hours. I'm facing an issue with making multiple asynchronous API calls in my React component using `useEffect`. I need to fetch user data and their posts when the component mounts, but I'm experiencing issues with the order of the responses and potential race conditions. Here's the relevant part of my code: ```javascript import React, { useEffect, useState } from 'react'; const UserProfile = ({ userId }) => { const [user, setUser] = useState(null); const [posts, setPosts] = useState([]); const [loading, setLoading] = useState(true); useEffect(() => { const fetchUserData = async () => { const userResponse = await fetch(`https://jsonplaceholder.typicode.com/users/${userId}`); const userData = await userResponse.json(); setUser(userData); const postsResponse = await fetch(`https://jsonplaceholder.typicode.com/posts?userId=${userId}`); const postsData = await postsResponse.json(); setPosts(postsData); setLoading(false); }; fetchUserData(); }, [userId]); if (loading) return <div>Loading...</div>; return ( <div> <h1>{user.name}</h1> <ul> {posts.map(post => <li key={post.id}>{post.title}</li>)} </ul> </div> ); }; export default UserProfile; ``` The issue I'm encountering is that sometimes the posts render before the user data has fully loaded, leading to a brief flash of incomplete data. I've tried to manage the loading state more carefully, but when I run multiple instances of this component (with different `userId`s), the async calls seem to interfere with each other. Is there a better way to handle this to ensure the data is rendered in the correct order, or should I consider using a state management library to serialize these requests? Any guidance on improving this would be greatly appreciated! This is part of a larger application I'm building. For context: I'm using Javascript on Windows. I'd really appreciate any guidance on this. I recently upgraded to Javascript latest. Could someone point me to the right documentation? I've been using Javascript for about a year now. Am I approaching this the right way?