In this tutorial i am going to show you, How to integrate paypal payment gateway in nodejs.
Paypal is a very popular payment gateway to send and receive money from other region.
So i am here with the tutorial to integrate paypal payment gateway in nodejs.
Goto paypal developer account and create your app to get client_id and client_secret
https://developer.paypal.com
First of all create your paypal app see attached image.
After that you can see your client_id and client_secret to authenticate your paypal request from your server.
Create package.json file in your project directory.
package.json
{
"name": "NodeJs-Paypal",
"version": "0.0.1",
"description": "Paypal Integration using Nodejs",
"dependencies": {
"body-parser": "^1.13.2",
"express": "^4.13.1",
"paypal-rest-sdk": "^1.6.0"
}
}
|
After that goto your project directory by terminal and run.
This command will read all the dependencies from package.json file and install them in your project directory.
Create html file by which you can set payment information this is just for demonstration purpose.
index.html
|
Paypal Payment Gateway in NodeJs
Now create your server file.
app.js
/* * Author: Rohit Kumar * Date: 22-07-2015 * App Name: Nodejs-Paypal * Website: iamrohit.in * Description: Program to Integrate paypal payment gateway in nodejs */ var http=require('http'); var express = require("express"); var paypal = require('paypal-rest-sdk'); var bodyParser = require('body-parser'); var app = express(); var port = Number(process.env.PORT || 5000); app.use(bodyParser.json()); // to support JSON-encoded bodies app.use(bodyParser.urlencoded({ extended: true })); app.locals.baseurl = 'http://localhost:5000'; // paypal auth configuration var config = { "port" : 5000, "api" : { "host" : "api.sandbox.paypal.com", "port" : "", "client_id" : "YOUR TEST CLIENT ID", // your paypal application client id "client_secret" : "YOUR TEST CLIENT SECRET" // your paypal application secret id } } paypal.configure(config.api); // Page will display after payment has beed transfered successfully app.get('/success', function(req, res) { res.send("Payment transfered successfully."); }); // Page will display when you canceled the transaction app.get('/cancel', function(req, res) { res.send("Payment canceled successfully."); }); app.get('/', function(req, res) { res.sendFile(__dirname+'/index.html'); }); app.post('/paynow', function(req, res) { // paypal payment configuration. var payment = { "intent": "sale", "payer": { "payment_method": "paypal" }, "redirect_urls": { "return_url": app.locals.baseurl+"/success", "cancel_url": app.locals.baseurl+"/cancel" }, "transactions": [{ "amount": { "total":parseInt(req.body.amount), "currency": req.body.currency }, "description": req.body.description }] }; paypal.payment.create(payment, function (error, payment) { if (error) { console.log(error); } else { if(payment.payer.payment_method === 'paypal') { req.paymentId = payment.id; var redirectUrl; console.log(payment); for(var i=0; i < payment.links.length; i++) { var link = payment.links[i]; if (link.method === 'REDIRECT') { redirectUrl = link.href; } } res.redirect(redirectUrl); } } }); }); // Starting server var server = http.createServer(app).listen(port, function() { console.log("Listening on " + port); }); |
Finally run your application
and hit http://localhost:5000 on browser and fill payment details and click on Pay Now button it’ll automatically redirected to paypal with the payment details you filled.
See the working demo and you can also download source code form my github repository.
Hope this example will help you to integrate paypal payment gateway using nodejs.
