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Full-Stack Development Guides

3 practical guides on full-stack development, including “How to Upload Files in React and Node.js” and “Fix CORS Errors in React + Node.js Apps”. Each article explains the problem, shows the fix with working code and points out what to watch for. New guides are added regularly, newest first.

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How to Upload Files in React and Node.jsFull-Stack Development
Sep 27, 20265 min read

How to Upload Files in React and Node.js

A step-by-step guide to handling file uploads in a full-stack app: multipart form data in React, Multer on the Node.js API, and the mistakes that break it.

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Fix CORS Errors in React + Node.js AppsFull-Stack Development
Sep 22, 20267 min read

Fix CORS Errors in React + Node.js Apps

Learn why the 'No Access-Control-Allow-Origin' CORS error happens in React + Node.js apps, and the exact Express fix that solves it for good.

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JWT Authentication in Full-Stack AppsFull-Stack Development
Sep 17, 20266 min read

JWT Authentication in Full-Stack Apps

Learn JWT authentication for full-stack apps: short-lived access tokens, refresh token rotation, secure client storage, and true token revocation.

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