Laravel PayPal

Introduction
Installation
Configuration
Usage
Handling PayPal IPN
Support

Introduction

Laravel plugin For Processing Payments Through Paypal. Using this plugin you can process or refund payments and handle IPN (Instant Payment Notification) from PayPal in your Laravel application.

Currently only PayPal Express Checkout Is Supported.

Installation

Use following command to install:

composer require srmklive/paypal

Add the service provider to your $providers array in config/app.php file like:

'Srmklive\PayPal\Providers\PayPalServiceProvider' // Laravel 5

Srmklive\PayPal\Providers\PayPalServiceProvider::class // Laravel 5.1 or greater

Add the alias to your $aliases array in config/app.php file like:

'PayPal' => 'Srmklive\PayPal\Providers\Facades\PayPal' // Laravel 5

'PayPal' => Srmklive\PayPal\Providers\Facades\PayPal::class // Laravel 5.1 or greater

Run the following command to publish configuration:

php artisan vendor:publish

Configuration

After installation, you will need to add your paypal settings. Following is the code you will find in config/paypal.php, which you should update accordingly.

return [
    'mode' => 'sandbox', // Can only be 'sandbox' Or 'live'. If empty or invalid, 'live' will be used.
    'sandbox' => [
        'username' => '',
        'password' => '',
        'secret' => '',
        'certificate' => '',
    ],
    'live' => [
        'username' => '',
        'password' => '',
        'secret' => '',
        'certificate' => '',
    ],
    'payment_action' => 'Sale', // Can Only Be 'Sale', 'Authorization', 'Order'
    'currency' => 'USD',
    'notify_url' => '', // Change this accordingly for your application.
];

Usage

$data = [];
$data['items'] = [
    [
        'name' => 'Product 1',
        'price' => 9.99
    ],
    [
        'name' => 'Product 2',
        'price' => 4.99
    ]
];

$data['invoice_id'] = 1;
$data['invoice_description'] = "Order #$data[invoice_id] Invoice";
$data['return_url'] = url('/payment/success');
$data['cancel_url'] = url('/cart');

$total = 0;
foreach($data['items'] as $item) {
    $total += $item['price'];
}

$data['total'] = $total;

SetExpressCheckout

$response = PayPal::getProvider()->setExpressCheckout($data);
return redirect($response['paypal_link']); // This will redirect user to PayPal

GetExpressCheckoutDetails

$response = PayPal::getProvider()->getExpressCheckoutDetails($token);

DoExpressCheckoutPayment

// Note that 'token', 'PayerID' are values returned by PayPal when it redirects to success page after successful verification of user's PayPal info.
$response = PayPal::getProvider()->doExpressCheckoutPayment($data, $token, $PayerID);

RefundTransaction

$response = PayPal::getProvider()->refundTransaction($transactionid);

Handling PayPal IPN

You can also handle Instant Payment Notifications from PayPal. Suppose you have set IPN URL to http://example.com/ipn/notify/ in PayPal. To handle IPN you should do the following:

First add the ipn/notify tp your routes file:

Route::post('ipn/notify','PayPalController@postNotify'); // Change it accordingly in your application

Open App\Http\Middleware\VerifyCsrfToken.php and add your IPN route to $excluded routes variable.
```
'ipn/notify'
```

Then in the controller where you are handling IPN, do the following:

// Put this above controller definition
use Srmklive\PayPal\Traits\IPNResponse As PayPalIPN;

// Then add the following before function declaration
use PayPalIPN;

The above step saves the PayPal IPN response as ipn in session. Following is the code you can change to your own requirements for handling IPN:

/**
 * Retrieve IPN Response From PayPal
 *
 * @param \Illuminate\Http\Request $request
 */
public function postNotify(Request $request)
{
    $post = [];
    $request_params = $request->all();

    foreach ($request_params as $key=>$value)
        $post[$key] = $value;

    $post['cmd'] = '_notify-validate';

    $response = $this->verifyIPN($post);

    session([
        'ipn' => $response
    ]);
}

Support

This plugin only supports Laravel 5 or greater.

In case of any issues, kindly create one on the Issues section.
If you would like to contribute:
- Fork this repository.
- Implement your features.
- Generate pull request.