Tap Payment API Integration in PHP with Source Code

Step 1: Install Required Packages

The first step in integrating Tap Payment into your PHP application is to install the necessary packages. You’ll need to install the official Tap Payment PHP SDK, which simplifies the integration process.
Open your command line terminal and navigate to your project directory. Then, run the following command to install the Tap Payment SDK via Composer:

This command will download and install the Tap Payment PHP SDK in your project.

Step 2: Obtain API Credentials

To use the Tap Payment API, you need to obtain your API credentials from the Tap Payment dashboard. These credentials include your API Key and Secret Key.

If you don’t have a Tap Payments account yet, please visit the official Tap Payments website at https://www.tap.company/. Sign up for an account with Tap Payments. Please log in to your Tap Dashboard with your login information. Then, go to the “goSell” section, select “API Credentials,” and click “Generate Key” to access the secret keys for your preferred mode.

Make sure to keep your API credentials secure, as they are sensitive and should not be shared publicly

Step 3: Set Up Your PHP Application

Create a new PHP file in your project, e.g., index.php, and include the Tap Payment SDK at the beginning of the file

Step 4: Initialize the Tap Payment SDK

To initialize the Tap Payment SDK, you need to provide your API credentials. Add the following code to your PHP file, replacing 'YOUR_API_KEY' and 'YOUR_SECRET_KEY' with your actual Tap Payment API credentials:

This initializes the SDK with your API credentials, allowing you to make requests to the Tap Payment API.

Step 5: Create a Payment Request

Before processing a payment, you need to create a payment request. The request should include the amount to be charged, currency, and any additional information about the payment.

You can customize the payment request based on your requirements, such as including product details or other relevant information.

Step 6: Create a Payment Charge

Now that you have your payment request prepared, you can create a payment charge using the createCharge method of the Tap Payment SDK. Here’s how to do it:

This code attempts to create a payment charge and handles both successful payments and payment errors. If the payment is successful, it will display the payment ID and status. If there’s an error, it will show the error message.

Step 7: Handle Webhooks (Optional)

Tap Payment provides webhooks to notify your application about payment events, such as successful payments, refunds, and chargebacks. While handling webhooks is optional, it’s a good practice to ensure that your application stays updated with the latest payment status.

To handle webhooks, you need to set up a route or endpoint in your PHP application to receive Tap Payment webhook notifications. You can use a framework like Laravel or create a simple PHP script to handle incoming webhook requests.

In the webhook endpoint, you should validate the authenticity of the incoming webhook using the secret key you received from Tap Payment. This validation helps ensure that the webhook request is legitimate.

Here’s an example of how to set up a webhook endpoint to handle Tap Payment notifications:

Step 8: Test Your Integration

Testing is a critical part of the integration process to ensure that your application interacts with the Tap Payment API as expected. Tap Payment provides a sandbox environment for testing, allowing you to make test payments without actual money.

To test your integration, you can use the Tap Payment test card details provided in the Tap Payment documentation. These test cards allow you to simulate different payment scenarios, such as successful payments, declined payments, and 3D Secure verifications.

Step 9: Go Live

Once you’ve thoroughly tested your Tap Payment API integration in PHP in the sandbox environment and everything works as expected, you can switch to the production environment to accept real payments from your customers.