Express.js Tutorial Session 10 | Update API Integration with Frontend (React + Express + MongoDB)
Welcome to Express.js Tutorial Session 10 🚀 by Rehan Kapaya!
In this session, we’ll integrate the Update API from our Express.js backend with the React.js frontend to complete the final part of our CRUD operations — Create, Read, Update, and Delete.
This tutorial is part of my Express.js & MERN Stack Series (2025) where we’ve been building a complete backend and connecting it with the frontend step by step. In this video, you’ll learn how to edit and update product data directly from your React app and send the updated information to your Express backend through Axios or Fetch API.
✅ What You’ll Learn in Session 10
How to integrate Update API between frontend (React) and backend (Express)
Using req.params and PUT/PATCH methods for data updates
Creating a frontend form for editing product data
Sending updated data from React to Express using Axios / Fetch
Updating documents in MongoDB using Mongoose
Handling responses, errors, and frontend state updates
Full end-to-end data flow (Frontend → Backend → Database → UI)
By the end of this tutorial, you’ll be able to edit and update products in your database directly from your web interface — completing your full CRUD functionality in the MERN stack.
📌 Express.js Series Roadmap by Rehan Kapaya
Session 01 → Project Structure, GET API & HTTP Methods
Session 02 → Models & Schema using Mongoose
Session 03 → Database Connection & .env Setup
Session 04 → POST API & Data Storage in MongoDB
Session 05 → GET All & Single Product APIs
Session 06 → Update & Delete API (Backend)
Session 07 → POST API Integration with Frontend
Session 08 → MongoDB Atlas Connection
Session 09 → GET & DELETE API Integration with Frontend
Session 10 (This Video) → Update API Integration with Frontend
🔥 Why This Session is Important
Integrating an Update API teaches you how to sync user edits in the frontend with your database in real time.
In this session, you’ll master:
Sending PUT requests from React
Handling state and form data for updates
Working with MongoDB’s findByIdAndUpdate()
Making your UI dynamic and data-driven
This is the skill every MERN stack developer must know to build scalable and interactive web applications.
🛠️ Tools & Technologies Used
React.js (Frontend)
Express.js (Backend)
MongoDB Atlas (Cloud Database)
Mongoose ORM
Axios / Fetch API
dotenv (For secure configuration)
Postman (API Testing)
🙌 Stay Connected – Rehan Kapaya
If this tutorial helped you, please Like 👍, Comment 💬, Share ↗️, and Subscribe 🔔 to my channel.
I upload weekly tutorials on:
Express.js & Node.js
React.js & MongoDB
MERN Stack Projects
Backend Fundamentals
API Integration & Deployment
Follow the full series to become a confident Full Stack Developer!