Recently, I'm writing a mall project for foreign buyers. Since it's for foreign buyers, PayPal will be used as a payment platform. Because some problems and time have been spent in docking PayPal, I write down the docking process and hope to help my friends who use PayPal.
I integrated paypal/rest-api-sdk-php. PayPal's API has v1 and v2 versions, and this one I use is v1 version.
The following are shown in code form, no screenshots, but I try to explain it in code.
Suppose you already have a project written in laravel:
Step:1 Installation Extension Package
composer require paypal/rest-api-sdk-php
Step:2 Create paypal.php configuration file
Create a new paypal.php configuration file in the Config directory as follows
return [ 'paypal' => [ /** set your paypal credential **/ 'client_id' =>'paypal client_id', 'secret' => 'paypal secret ID', /** * SDK To configure */ 'settings' => array( /** * Sandbox test'sandbox'or'live' */ 'mode' => 'sandbox', /** * Request timeout */ 'http.ConnectionTimeOut' => 1000, /** * Whether to open logs: true open, false not open */ 'log.LogEnabled' => true, /** * Log-stored files */ 'log.FileName' => storage_path() . '/logs/paypal.log', /** * Log level'DEBUG','INFO','WARN'or'ERROR' * */ 'log.LogLevel' => 'INFO' ), ], '2checkout' => [ // ] ];
Step:3 Create Routes
// Step 1: Display the form. This is a simple form page. We enter the amount and then click Submit. Route::get('paypal-form', 'Payment\PayPalController@payPalShow')->name('paypal-form'); // Step 2: The first step is to send a request after submission, requesting this method, which is used to create an order and a payment process. Route::post('paypal-pay', 'Payment\PayPalController@pay')->name('payment.paypay.pay'); // Step 3: Asynchronous callback Route::post('paypal-notify', 'Payment\PayPalController@payPalNotify')->name('payment.paypal.notify'); // Step 3: Front-end callback Route::get('paypal-return', 'Payment\PayPalController@payPalReturn')->name('payment.paypal.return'); // Step 3: Cancel Route::get('paypal-cancel', 'Payment\PayPalController@payPalCancel')->name('payment.paypal.cancel');
Step:3 Create Controller
<?php namespace App\Http\Controllers\Payment; use App\Http\Controllers\BaseController; use Illuminate\Http\Request; use Illuminate\Support\Facades\Input; use PayPal\Api\Amount; use PayPal\Api\Item; use PayPal\Api\ItemList; use PayPal\Api\Payer; use PayPal\Api\Payment; use PayPal\Api\PaymentExecution; use PayPal\Api\RedirectUrls; use PayPal\Api\Transaction; use PayPal\Auth\OAuthTokenCredential; use PayPal\Rest\ApiContext; class PayPalController extends BaseController { private $_api_context; public function __construct() { $payPal_config = config('payment.payPal'); // Initialize PayPal Api context $this->_api_context = new ApiContext(new OAuthTokenCredential( $payPal_config['client_id'], $payPal_config['secret'] )); $this->_api_context->setConfig($payPal_config['setting']); } // display form public function payPalShow() { return view('payment.paypal'); } // Step two, request here public function pay(Request $request) { $payer = new Payer(); $payer->setPaymentMethod('paypal'); // Product Name, Currency, Quantity, Single Product Amount $item1 = new Item(); $item1->setName('item1') ->setCurrency('USD') ->setQuantity(1) ->setPrice($request->get('amount')); // Collecting all products into ItemList $item_list = new ItemList(); $item_list->setItems([$item1]); $amount = new Amount(); $amount->setCurrency('USD') ->setTotal($request->get('amount')); // Generate transactions $transaction = new Transaction(); $transaction->setAmount($amount) ->setItemList($item_list) ->setDescription('Your deal') ->setNotifyUrl(route('notify_url')) // Note that the asynchronous callback address is set here ->setInvoiceNumber($order->order_number); // Set the order number here // Setting Front-end Callback Address and Canceling Payment Address $redirect_urls = new RedirectUrls(); $redirect_urls->setReturnUrl(route('payment.paypal.cancel')) ->setCancelUrl(route('payment.paypal.cancel')); $payment = new Payment(); $payment->setIntent('Sale') ->setPayer($payer) ->setRedirectUrls($redirect_urls) ->setTransactions(array($transaction));
try { // Here the payment process is generated $payment->create($this->_api_context); } catch (\PayPal\Exception\PayPalConnectionException $ex) { if (config('app.debug')) { session()->put('error','Connection timeout'); return redirect()->route('paypal-form'); /** echo "Exception: " . $ex->getMessage() . PHP_EOL; **/ /** $err_data = json_decode($ex->getData(), true); **/ /** exit; **/ } else { session()->put('error','Some error occur, sorry for inconvenient'); return redirect()->route('paypal-form'); } } foreach($payment->getLinks() as $link) { if($link->getRel() == 'approval_url') { $redirect_url = $link->getHref(); break; } } // $payment - > getId () gets the payment line number session()->put('paypal_payment_id', $payment->getId()); if(isset($redirect_url)) { // Jump to Payment Page return redirect()->away($redirect_url); } session()->put('error','Unknown error occurred'); return session()->route('paypal-form'); } public function payPalReturn(Request $request) { // After successful payment, when the front page jumps back, the url address will have paymentID and PayerrID $payment_id = session()->get('paypal_payment_id'); session()->forget('paypal_payment_id'); if (empty(Input::get('PayerID')) || empty(Input::get('token'))) { session()->put('error','Payment failed'); return redirect()->route('paypal-form'); } $payment = Payment::get($payment_id, $this->_api_context); $execution = new PaymentExecution(); $execution->setPayerId(Input::get('PayerID')); $result = $payment->execute($execution, $this->_api_context); // approved indicates successful payment when the status is received if ($result->getState() == 'approved') { session()->put('success','Payment success'); return redirect()->route('paypal-form'); } session()->put('error','Payment failed'); return redirect()->route('paypal-form'); } public function payPalNotify() { Log::info(12312, Input::get()); // Here we write our business logic, order status updates, logistics information and so on. } }
Step:4 Create Forms
<form class="form-horizontal" method="POST" id="payment-form" role="form" action="{!! URL::route('paypal-pay') !!}" > {{ csrf_field() }} <div class="form-group{{ $errors->has('amount') ? ' has-error' : '' }}"> <label for="amount" class="col-md-4 control-label">Amount</label> <div class="col-md-6"> <input id="amount" type="text" class="form-control" name="amount" value="{{ old('amount') }}" autofocus> @if ($errors->has('amount')) <span class="help-block"> <strong>{{ $errors->first('amount') }}</strong> </span> @endif </div> </div> <div class="form-group"> <div class="col-md-6 col-md-offset-4"> <button type="submit" class="btn btn-primary"> Paywith Paypal </button> </div> </div> </form>
The above is not only the docking process of PayPal when I was working on the mall project, but also a lot of problems will arise because of the poor English.
If English is good and you want to know more usage, you can see PayPal's developer documentation and demo demonstrations.