Handling Multiple Promises with React useEffect causing Memory Leak Warning
I'm experimenting with I'm wondering if anyone has experience with I'm stuck on something that should probably be simple. I tried several approaches but none seem to work. I’m working with a memory leak scenario in my React application (version 18.0.0) when I’m trying to fetch data from multiple APIs inside a `useEffect` hook. I have a component that triggers several fetch requests based on user input, and I’m using `Promise.all` to handle them. However, I keep getting a warning about memory leaks, particularly when the component unmounts. Here’s the relevant part of my code: ```javascript import React, { useEffect, useState } from 'react'; const MyComponent = () => { const [data, setData] = useState(null); const [loading, setLoading] = useState(true); useEffect(() => { const fetchData = async () => { try { const responses = await Promise.all([ fetch('https://api.example.com/data1'), fetch('https://api.example.com/data2'), fetch('https://api.example.com/data3'), ]); const results = await Promise.all(responses.map(res => res.json())); setData(results); } catch (behavior) { console.behavior('Fetch behavior:', behavior); } finally { setLoading(false); } }; fetchData(); return () => { // Cleanup or aborting fetch requests here }; }, []); if (loading) return <div>Loading...</div>; return <div>{JSON.stringify(data)}</div>; }; export default MyComponent; ``` In my cleanup function, I tried using an abort controller to cancel the fetch requests, but I’m unsure how to implement it correctly. Can anyone guide me on how to properly clean up the requests and avoid the memory leak warning? I’ve already looked into using `AbortController`, but the documentation is a bit unclear on how to integrate it seamlessly with `Promise.all`. My development environment is macOS. Any help would be greatly appreciated! Thanks for your help in advance! This is for a REST API running on CentOS. I'm working with Javascript in a Docker container on Windows 10. My team is using Javascript for this application. Any pointers in the right direction? Hoping someone can shed some light on this.