Welcome folks today in this tutorial we will be integrating the instamojo payment gateway inside our node.js and express app. All the source code of the application is given below. A step by step youtube video is also shown below.
Get Started
In order to get started we need to install these dependencies which are given below
npm i express
npm i nodemon
npm i instamojo-nodejs
Now create your app.js file which is the starting point of the node.js application
const Insta = require("instamojo-nodejs");
const bodyParser = require("body-parser");
const express = require("express");
const API_KEY = "####yourapikey####";
const AUTH_KEY = "###yourauthkey####";
Insta.setKeys(API_KEY, AUTH_KEY);
Insta.isSandboxMode(true);
const PORT = process.env.PORT || 3000;
const app = express();
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
app.get("/", (req, res) => {
res.sendfile(__dirname + "/index.html");
});
app.listen(PORT, () => {
console.log(`App is listening on ${PORT}`);
});
Now you need to replace your private keys and auth keys from instamojo dashboard like this
Now you need to make the index.html file for our application
<!DOCTYPE html>
<html>
<head>
<title>Instamojo Integration in Node.js and Express</title>
<link
rel="stylesheet"
href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
/>
</head>
<body>
<div class="container">
<h1 class="text-center">Instamojo Payment</h1>
<form action="/pay" method="POST">
<div class="form-group">
<input
type="text"
class="form-control"
required
name="name"
id=""
placeholder="name"
/>
</div>
<div class="form-group">
<input
type="email"
class="form-control"
required
name="email"
id=""
placeholder="email"
/>
</div>
<div class="form-group">
<input
type="number"
class="form-control"
required
name="amount"
id=""
placeholder="amount"
/>
</div>
<div class="form-group">
<button class="btn btn-danger btn-block">
Create Payment Link
</button>
</div>
</form>
</div>
</body>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
</html>
Now we need to make the post request to the /pay route to initiate the instamojo link
var data = new Insta.PaymentData();
const REDIRECT_URL = "http://localhost:3000/success";
data.setRedirectUrl(REDIRECT_URL);
data.send_email = "True";
data.purpose = "Test"; // REQUIRED
In this block of code we are setting the options such as redirect_url and also send_email option and also the purpose
app.post("/pay", (req, res) => {
var name = req.body.name;
var email = req.body.email;
var amount = req.body.amount;
data.amount = amount;
data.name = name;
data.email = email; // REQUIRED
Insta.createPayment(data, function (error, response) {
if (error) {
// some error
} else {
// Payment redirection link at response.payment_request.longurl
res.send("Please check your email to make payment")
}
});
});
Now if you give the details and click the button then it will say email is sent to check the payment link of instamojo
