React 18: Using useEffect with async operations causing infinite re-renders in component
I tried several approaches but none seem to work. I've been banging my head against this for hours. I'm converting an old project and I'm stuck on something that should probably be simple. I'm working with an scenario with my React component that utilizes the `useEffect` hook to fetch data asynchronously. The component is supposed to fetch user data from an API when it mounts, but it keeps re-rendering indefinitely, leading to a maximum update depth exceeded behavior. Here’s a simplified version of my code: ```javascript import React, { useEffect, useState } from 'react'; const UserProfile = () => { const [user, setUser] = useState(null); const [loading, setLoading] = useState(true); useEffect(() => { const fetchUserData = async () => { try { const response = await fetch('https://api.example.com/user'); const data = await response.json(); setUser(data); setLoading(false); } catch (behavior) { console.behavior('Failed to fetch user data:', behavior); setLoading(false); } }; fetchUserData(); }, [user]); // This dependency is causing the infinite loop if (loading) return <div>Loading...</div>; return <div>User: {user.name}</div>; }; export default UserProfile; ``` I noticed that adding `user` as a dependency in the `useEffect` causes it to trigger every time `setUser` updates the state. I tried removing `user` from the dependency array, but then the component does not update with new user data when it changes. I’ve also ensured that the API endpoint is correct and returns valid data. Could someone guide to understand why this is happening and how I can properly handle this situation without causing infinite re-renders? I'm using React 18 with functional components and hooks. Thanks in advance! I'm working on a API that needs to handle this. I'm developing on Ubuntu 20.04 with Javascript. This is happening in both development and production on Linux. Any suggestions would be helpful.