How to Integrate Stripe Payment Gateway in Node js

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Introduction

Integrating a payment gateway is a crucial step in developing a robust e-commerce application. Stripe is a popular choice due to its developer-friendly API and extensive documentation. In this article, we will discuss how to integrate Stripe payment gateway in Node JS applications. By following these step-by-step instructions, you will be able to handle payments efficiently and securely.

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Prerequisites

Before we dive into the integration process, let’s ensure you have the necessary prerequisites:

  • Node.js and npm: Make sure you have Node.js and npm installed on your machine.
  • Stripe Account: Sign up for a Stripe account if you don’t have one.
  • Node.js Packages: We will be using the Express framework and the Stripe package.

Step 1: Setting Up Your Node.js Project for Integrate Stripe Payment Gateway in Node JS

To integrate Stripe payment gateway in Node JS, we first need to set up a Node.js project.

  1. Create a New Project:
mkdir stripe-integration
cd stripe-integration
npm init -y

2. Install Necessary Packages:

npm install express stripe dotenv

Step 2: Configuring Stripe in Your Node.js Application

Next, we need to configure Stripe in our Node.js application to integrate the Stripe payment gateway effectively.

  1. Create and Configure Stripe Account:
    • Sign in to your Stripe account.
    • Navigate to the Developers section to find your API keys.
  2. Obtain API Keys from Stripe:
    • Copy your Publishable Key and Secret Key.
  3. Set Up Environment Variables: Create a .env file in the root of your project and add your Stripe keys:
STRIPE_PUBLISHABLE_KEY=your_publishable_key
STRIPE_SECRET_KEY=your_secret_key

Step 3: Creating a Basic Server with Express

To integrate Stripe payment gateway in Node JS, we will create a basic server using Express.

  1. Set Up an Express Server:
const express = require('express');
const app = express();
const dotenv = require('dotenv');

dotenv.config();

app.use(express.json());

const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
  console.log(`Server is running on port ${PORT}`);
});

2. Create Basic Routes:

app.get('/', (req, res) => {
  res.send('Welcome to Stripe Integration Example');
});

Step 4: Implementing the Stripe Payment Integration

To integrate Stripe payment gateway in Node JS, we need to set up the Stripe package and handle payment routes.

  1. Set Up Stripe in Your Node.js Application:
const stripe = require('stripe')(process.env.STRIPE_SECRET_KEY);

2. Create a Payment Route:

app.post('/payment', async (req, res) => {
  const { amount, currency } = req.body;

  try {
    const paymentIntent = await stripe.paymentIntents.create({
      amount,
      currency,
    });

    res.status(200).send(paymentIntent.client_secret);
  } catch (error) {
    res.status(500).send(error.message);
  }
});

3. Handle Payment Requests: Ensure your payment route processes incoming requests and responds with the client secret.

Step 5: Testing the Integration

To ensure your integration is successful, test it using Stripe’s test mode.

  1. Use Stripe’s Test Mode:
    • Use test card numbers provided by Stripe.
  2. Create Test Transactions:
// Example request using fetch or any HTTP client
fetch('/payment', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    amount: 5000,
    currency: 'usd',
  }),
}).then((response) => response.json())
  .then((data) => console.log(data));

3. Handle Responses and Errors: Ensure your application handles responses and errors appropriately.

Step 6: Securing Your Integration

To integrate Stripe payment gateway in Node JS securely, follow these best practices.

  1. Handle Sensitive Data Carefully:
    • Use environment variables to store sensitive information.
    • Never expose your secret keys on the client side.
  2. Implement Security Measures:
    • Use HTTPS for all API calls.
    • Validate all incoming requests and parameters.

Conclusion

In this article, we covered the steps to integrate Stripe payment gateway in Node JS. By following these steps, you can handle payments efficiently and securely. Stripe offers many additional features, so explore their documentation to further enhance your payment system.

FAQs

1. What is the Stripe payment gateway?

  • Stripe is a technology company that builds economic infrastructure for the internet. Businesses use Stripe software to accept payments and manage their businesses online.

2. Why use Stripe with Node.js?

  • Stripe’s API is designed to be easy to use and integrates well with Node.js applications, making it a popular choice for developers.

3. How do I test my Stripe integration?

  • Use Stripe’s test mode and test card numbers to simulate transactions without real money.

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