Handling Race Conditions in React with Third-Party API Calls
I've been banging my head against this for hours. I've looked through the documentation and I'm still confused about Integrating a new payment processing API into our React application has led to some unexpected behavior. I've set up a component that fetches transaction details when a user submits a payment. However, it seems that multiple API calls are being made, sometimes leading to race conditions where the state updates are not reflecting the latest transaction data correctly. The component structure looks something like this: ```javascript import React, { useEffect, useState } from 'react'; import axios from 'axios'; const PaymentComponent = ({ paymentId }) => { const [transactionDetails, setTransactionDetails] = useState(null); const [loading, setLoading] = useState(true); useEffect(() => { const fetchTransaction = async () => { try { const response = await axios.get(`https://api.example.com/transactions/${paymentId}`); setTransactionDetails(response.data); } catch (error) { console.error('Error fetching transaction:', error); } finally { setLoading(false); } }; fetchTransaction(); }, [paymentId]); if (loading) return <p>Loading...</p>; return <div>{transactionDetails ? transactionDetails.status : 'No details available'}</div>; }; ``` While this works for fetching the details, I've noticed that if a user rapidly submits multiple payments, the API calls overlap, causing the last one to overwrite the previous state updates. I attempted to manage the state updates by keeping track of the current request with a flag, but that led to a more complicated state management scenario. One idea I had was to use `AbortController` to cancel any ongoing requests when a new payment is initiated. However, I'm not sure of the best way to implement this within the `useEffect` hook without introducing more complexity. Here's a rough outline of what I considered: ```javascript useEffect(() => { const controller = new AbortController(); const fetchTransaction = async () => { try { const response = await axios.get(`https://api.example.com/transactions/${paymentId}`, { signal: controller.signal }); setTransactionDetails(response.data); } catch (error) { if (axios.isCancel(error)) { console.log('Request canceled:', error.message); } else { console.error('Error fetching transaction:', error); } } finally { setLoading(false); } }; fetchTransaction(); return () => { controller.abort(); }; }, [paymentId]); ``` I'm curious if anyone has successfully used `AbortController` in a similar scenario or if there are other best practices to handle race conditions with API calls in React. Any insights on managing multiple requests and ensuring the component state reflects the latest data would be greatly appreciated. My development environment is Linux. Is there a better approach? I'm working on a CLI tool that needs to handle this. I'd really appreciate any guidance on this.