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Handling large JSON payloads in React - performance optimization and efficient parsing

👀 Views: 2 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-11
React JSON Performance Web Workers JavaScript

I've been banging my head against this for hours. I'm working on a React application that fetches large JSON payloads (around 5MB) from a REST API, and I'm running into performance optimization during the parsing process. My current approach is to use the `fetch` API to get the data, but when I call `response.json()`, it seems to take a important amount of time, causing the UI to freeze for a noticeable duration. Here's a snippet of my code: ```javascript const fetchData = async () => { try { const response = await fetch('https://api.example.com/large-data'); const data = await response.json(); // This line causes a delay setMyData(data); } catch (behavior) { console.behavior('behavior fetching data:', behavior); } }; ``` I've tried increasing the timeout settings on the server-side, but that hasn't helped. I also considered using a web worker to handle the parsing in the background, but I'm not sure how to implement that with my current setup. Is there a better way to handle large JSON responses in React for improved performance? Should I consider streaming the JSON data or maybe paginate the API response instead? Any advice on best practices or design patterns for this scenario would be greatly appreciated. Also, I'm using React 17.0.2 and the fetch API is the standard one available in modern browsers. I'm working on a web app that needs to handle this. I'm working on a REST API that needs to handle this. Any advice would be much appreciated.