Visa webhook for transaction data

[tanmya]

Hey, I'm setting up an application with 5-7 Visa cards, and I want to trigger a webhook whenever a transaction is made on any of the cards to send me the transaction data. I believe the Notification Callback API is the one I need, but I haven't found any example implementation yet.

For reference, I have already gotten the callback API approved in my sandbox environment.

Any help or example code would be greatly appreciated!

Thanks!

[SyedSa]

Hi @tanmya, Thank you for reaching out. An agent will get back to you as soon as possible. Until then, if any community member knows a solution, feel free to reply in this thread.

[DianaVisaPM]

Hey @tanmya,

It's great to hear that you've gotten the Notification Callback API approved in your sandbox environment. You are correct that the Notification Callback API is what you need to trigger a webhook whenever a transaction is made on your Visa cards. This API will provide real-time notifications for transactions, allowing your application to respond accordingly.

To help you get started, below is a basic example of how you can set up a webhook to receive and handle transaction notifications using the Notification Callback API. Please ensure you adapt this example to fit your application's specific requirements and security practices.

Example Implementation in Node.js:

1. Set up a basic Node.js server:

```javascript
const express = require('express');
const bodyParser = require('body-parser');

const app = express();
const port = process.env.PORT || 3000;

// Use body-parser middleware to parse JSON payloads
app.use(bodyParser.json());

// Endpoint to receive notifications
app.post('/webhook', (req, res) => {
const transactionData = req.body;

// Log the transaction data for demonstration purposes
console.log('Transaction Notification Received:', transactionData);

// Handle the transaction data as needed
// For example, you can save it to a database or trigger other processes

// Send a response back to Visa
res.status(200).send('Notification received');
});

app.listen(port, () => {
console.log(`Server is running on port ${port}`);
});
```

2. Set up your webhook URL in the Visa Developer Portal:
- In the Visa Developer Portal, configure the Notification Callback API settings to point to your webhook URL (e.g., `https://yourdomain.com/webhook`).

3. Handle notifications securely:
- Ensure that your webhook endpoint is secure. Implement authentication and validation mechanisms to verify that incoming requests are genuinely from Visa.

4. Processing the received data:
- In the example above, the transaction data received in the webhook is logged to the console.

You can replace this with your logic to process and store the transaction data as needed.

This example provides a basic framework to get you started. For more detailed information and advanced configurations, please refer to the Visa Developer Documentation.