Uploaded February 2026 | Updated September 2026, 2 weeks ago
Welcome back to Part 24 of our React POS System build! In this tutorial, we dive deep into one of the most essential features of any retail application: Inserting Products with Image Upload. We bridge the gap between our React frontend and Node.js backend to handle complex multipart form data seamlessly.
We start by building a robust handleSubmit function in React, utilizing the FormData API and Axios to send both text fields and image files to our server. You will learn how to implement client-side validation to ensure data integrity before the API call is even made. On the backend, we configure Multer middleware for secure file handling, including custom storage engines to generate unique filenames and file filters to restrict uploads to specific image types.
Key highlights of this video:
Frontend Logic: Handling multipart/form-data and managing UI error states.
Multer Integration: Setting up disk storage and destination folders dynamically.
Backend Validation: Using express-validator to ensure categories, prices, and statuses are correct.
Database Security: Checking for duplicate product names in MySQL before insertion.
Authentication: Protecting the route with JWT token verification and Admin role checks.
By the end of this video, you’ll have a fully functional product creation module that saves data to a MySQL database and stores images on the server. This is a must-watch for anyone looking to master full-stack web development with the MERN/PERN stack!
For Source Code - webslesson.info/2026/01/react-pos-system-nodejs-mysql.html
Welcome back to Part 24 of our React POS System build! In this tutorial, we dive deep into one of the most essential features of any retail application: Inserting Products with Image Upload. We bridge the gap between our React frontend and Node.js backend to handle complex multipart form data seamlessly.
We start by building a robust handleSubmit function in React, utilizing the FormData API and Axios to send both text fields and image files to our server. You will learn how to implement client-side validation to ensure data integrity before the API call is even made. On the backend, we configure Multer middleware for secure file handling, including custom storage engines to generate unique filenames and file filters to restrict uploads to specific image types.
Key highlights of this video:
Frontend Logic: Handling multipart/form-data and managing UI error states.
Multer Integration: Setting up disk storage and destination folders dynamically.
Backend Validation: Using express-validator to ensure categories, prices, and statuses are correct.
Database Security: Checking for duplicate product names in MySQL before insertion.
Authentication: Protecting the route with JWT token verification and Admin role checks.
By the end of this video, you’ll have a fully functional product creation module that saves data to a MySQL database and stores images on the server. This is a must-watch for anyone looking to master full-stack web development with the MERN/PERN stack!
For Source Code - webslesson.info/2026/01/react-pos-system-nodejs-mysql.html
