Paypal integration controller not working in Laravel - laravel

Question

I create an account at paypal to test in my app.
composer require paypal/rest-api-sdk-php
Added the client ID and secret to the .env
This is what I currently have in my view
#if ($message = Session::get('success'))
<div class="w3-panel w3-green w3-display-container">
<span onclick="this.parentElement.style.display='none'"
class="w3-button w3-green w3-large w3-display-topright">×</span>
<p>{!! $message !!}</p>
</div>
<?php Session::forget('success');?>
#endif
#if ($message = Session::get('error'))
<div class="w3-panel w3-red w3-display-container">
<span onclick="this.parentElement.style.display='none'"
class="w3-button w3-red w3-large w3-display-topright">×</span>
<p>{!! $message !!}</p>
</div>
<?php Session::forget('error');?>
#endif
<form class="w3-container w3-display-middle w3-card-4 " method="POST" id="payment-form" action="{!! URL::to('paypal') !!}">
{{ csrf_field() }}
<h2 class="w3-text-blue">Payment Form</h2>
<p>
<label class="w3-text-blue"><b>Enter Amount</b></label>
<input class="w3-input w3-border" name="amount" type="text"></p>
<button class="w3-btn w3-blue">Pay with PayPal</button></p>
</form>
My PaymentController looks like this:
<?php
namespace App\Http\Controllers;
use Illuminate\Support\Facades\Session;
use Illuminate\Http\Request;
use PayPal\Api\Amount;
use PayPal\Api\Item;
use PayPal\Api\ItemList;
use PayPal\Api\Payer;
use PayPal\Api\Transaction;
use PayPal\Api\Payment;
use PayPal\Api\Details;
use PayPal\Api\ChargeModel;
use PayPal\Api\Currency;
use PayPal\Api\MerchantPreferences;
use PayPal\Api\PaymentDefinition;
use PayPal\Api\Plan;
use PayPal\Api\Patch;
use PayPal\Api\PatchRequest;
use PayPal\Common\PayPalModel;
use PayPal\Rest\ApiContext;
use PayPal\Auth\OAuthTokenCredential;
use PayPal\Api\RedirectUrls;
use PayPal\Api\PaymentExecution;
use URL;
use Redirect;
use Illuminate\Support\Facades\Input;
class PaymentController extends Controller
{
private $apiContext;
private $mode;
private $client_id;
private $secret;
public function __construct()
{
/** PayPal api context **/
$paypal_conf = \Config::get('paypal');
$this->_api_context = new ApiContext(new OAuthTokenCredential(
$paypal_conf['client_id'],
$paypal_conf['secret'])
);
$this->_api_context->setConfig($paypal_conf['settings']);
}
public function payWithpaypal(Request $request){
$payer = new Payer();
$payer->setPaymentMethod('paypal');
$item_1 = new Item();
$item_1->setName('Item 1') /** item name **/
->setCurrency('USD')
->setQuantity(1)
->setPrice($request->get('amount')); /** unit price **/
$item_list = new ItemList();
$item_list->setItems(array($item_1));
$amount = new Amount();
$amount->setCurrency('USD')
->setTotal($request->get('amount'));
$transaction = new Transaction();
$transaction->setAmount($amount)
->setItemList($item_list)
->setDescription('Your transaction description');
$redirect_urls = new RedirectUrls();
$redirect_urls->setReturnUrl(URL::route('status')) /** Specify return URL **/
->setCancelUrl(URL::route('status'));
$payment = new Payment();
$payment->setIntent('Sale')
->setPayer($payer)
->setRedirectUrls($redirect_urls)
->setTransactions(array($transaction));
/** dd($payment->create($this->_api_context));exit; **/
try {
$payment->create($this->_api_context);
} catch (\PayPal\Exception\PPConnectionException $ex) {
if (\Config::get('app.debug')) {
\Session::put('error', 'Connection timeout');
return Redirect::route('paywithpaypal');
} else {
\Session::put('error', 'Some error occur, sorry for inconvenient');
return Redirect::route('paywithpaypal');
}
}
foreach ($payment->getLinks() as $link) {
if ($link->getRel() == 'approval_url') {
$redirect_url = $link->getHref();
break;
}
}
/** add payment ID to session **/
Session::put('paypal_payment_id', $payment->getId());
if (isset($redirect_url)) {
/** redirect to paypal **/
return Redirect::away($redirect_url);
}
\Session::put('error', 'Unknown error occurred');
return Redirect::route('paywithpaypal');
}
public function getPaymentStatus(){
/** Get the payment ID before session clear **/
$payment_id = Session::get('paypal_payment_id');
/** clear the session payment ID **/
Session::forget('paypal_payment_id');
if (empty(Input::get('PayerID')) || empty(Input::get('token'))) {
\Session::put('error', 'Payment failed');
return Redirect::route('/');
}
$payment = Payment::get($payment_id, $this->_api_context);
$execution = new PaymentExecution();
$execution->setPayerId(Input::get('PayerID'));
/**Execute the payment **/
$result = $payment->execute($execution, $this->_api_context);
if ($result->getState() == 'approved') {
/*************************************************
PAYMENT SUCCESSFULL - DO THE REST HERE
/************************************************/
\Session::put('success', 'Payment success');
return Redirect::route('/');
}
\Session::put('error', 'Payment failed');
return Redirect::route('/');
}
}
So now when I enter an amount and try to pay, I get the following error:
Argument 1 passed to PayPal\Rest\ApiContext::setConfig() must be of the type array, null given, called in C:\xampp\htdocs\owlproperty\app\Http\Controllers\PaymentController.php on line 47
I created the paypal file under the config folder and that looks like this:
<?php
return [
'client_id' => env('PAYPAL_CLIENT_ID',''),
'secret' => env('PAYPAL_SECRET',''),
'settings' => array(
'mode' => env('PAYPAL_MODE','sandbox'),
'http.ConnectionTimeOut' => 30,
'log.LogEnabled' => true,
'log.FileName' => storage_path() . '/logs/paypal.log',
'log.LogLevel' => 'ERROR'
),
];
Anything I could have possibly done wrong?

Answer 1

You are not loading the config file correctly:
From the documentation:
The configuration values may be accessed using "dot" syntax, which
includes the name of the file and option you wish to access.
Assuming your confile file is named paypal.php, use this in the constructor:
public function __construct()
{
/** PayPal api context **/
$settings = config('paypal.settings');
$client_id = config('paypal.client_id');
$secret = config('paypal.secret');
$this->_api_context = new ApiContext(new OAuthTokenCredential(
$client_id,
$secret)
);
$this->_api_context->setConfig($settings);
}