Razorpay Payment Gateway Integration in MERN Applications

Integrating Razorpay into a MERN (MongoDB, Express, React, Node.js) application involves both backend and frontend configurations to ensure seamless payment processing. This guide provides a step-by-step tutorial, including code examples and best practices for security and usability.

Step 1: Set Up the Backend

1. Install Dependencies

Install the required packages for your Node.js server:

npm install express mongoose dotenv uniqid crypto formidable razorpay

2. Set Up Express Server and Connect MongoDB

Create a basic Express server and connect it to MongoDB. Use dotenv to manage sensitive information securely.

const express = require("express");
const mongoose = require("mongoose");
const dotenv = require("dotenv");

dotenv.config();
const app = express();

mongoose
  .connect(process.env.MONGO_URI, { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => console.log("MongoDB Connected"))
  .catch((err) => console.error(err));

app.use(express.json());
app.listen(5000, () => console.log("Server running on port 5000"));