Working on Paypal REST integration

app/PaymentDrivers/PayPalRestPaymentDriver.php

@@ -37,6 +37,8 @@ class PayPalRestPaymentDriver extends BaseDriver
 
     public const SYSTEM_LOG_TYPE = SystemLog::TYPE_PAYPAL;
 
+    private string $api_endpoint_url = '';
+
     public function gatewayTypes()
     {
         return [
@@ -45,16 +47,6 @@ class PayPalRestPaymentDriver extends BaseDriver
     }
 
     public function init()
-    {
-        return $this;
-    }
-
-    /**
-     * Initialize Omnipay PayPal_Express gateway.
-     *
-     * @return void
-     */
-    private function initializeOmnipayGateway(): self
     {
         $this->omnipay_gateway = Omnipay::create(
             $this->company_gateway->gateway->provider
@@ -62,6 +54,8 @@ class PayPalRestPaymentDriver extends BaseDriver
 
         $this->omnipay_gateway->initialize((array) $this->company_gateway->getConfig());
 
+        $this->api_endpoint_url = $this->company_gateway->getConfigField('testMode') ? 'https://api-m.sandbox.paypal.com' : 'https://api-m.paypal.com';
+        
         return $this;
     }
 
@@ -89,32 +83,121 @@ class PayPalRestPaymentDriver extends BaseDriver
 
     public function processPaymentView($data)
     {
-        $this->initializeOmnipayGateway();
+        $this->init();
 
         $data['gateway'] = $this;
         
         $this->payment_hash->data = array_merge((array) $this->payment_hash->data, ['amount' => $data['total']['amount_with_fee']]);
         $this->payment_hash->save();
 
-        $access_token = $this->omnipay_gateway->getToken();
+        $data['client_id'] = $this->company_gateway->getConfigField('clientId');
-
+        $data['token'] = $this->getClientToken();
-        $headers = [
+        $data['order_id'] = $this->createOrder($data);
-            'Accept' => 'application/json',
-            'Content-type' => 'application/json',
-            'Accept-Language' => 'en_US',
-        ];
-
-        $r = Http::withToken($access_token)
-                ->withHeaders($headers)
-                ->post("https://api-m.sandbox.paypal.com/v1/identity/generate-token",['body' => '']);
-
-        nlog($r->body());
-        dd($r);
 
         return render('gateways.paypal.pay', $data);
 
     }
 
+    public function processPaymentResponse($request)
+    {
+        $this->init();
+
+        nlog($request->all());
+        
+        $response = json_decode($request['gateway_response'], true);
+        
+        $order_id = $response['orderID'];
+
+        nlog($order_id);
+
+        $r = $this->gatewayRequest("/v2/checkout/orders/{$order_id}/capture", 'post', []);
+
+            dd($r->body());
+
+    }
+
+    private function getClientToken(): string
+    {
+
+        $r = $this->gatewayRequest('/v1/identity/generate-token', 'post', ['body' => '']);
+
+        if($r->successful()) 
+            return $r->json()['client_token'];
+        
+        throw new PaymentFailed('Unable to gain client token from Paypal. Check your configuration', 401);
+
+    }
+
+    private function createOrder(array $data): string
+    {
+
+        $_invoice = collect($this->payment_hash->data->invoices)->first();
+
+        $invoice = Invoice::withTrashed()->find($this->decodePrimaryKey($_invoice->invoice_id));
+
+        $order = [
+          "intent" => "CAPTURE",
+          "purchase_units" => [
+                [
+            "description" =>ctrans('texts.invoice_number').'# '.$invoice->number,
+            "invoice_id" => $invoice->number,
+            'reference_id' => 'PUHF',
+            'description' => 'Sporting Goods',
+            'custom_id' => 'CUST-HighFashions',
+            'soft_descriptor' => 'HighFashions',
+            "amount" => [
+                "value" => (string)$data['amount_with_fee'],
+                "currency_code"=> $this->client->currency()->code,
+                "breakdown" => [
+                    "item_total" => [
+                        "currency_code" => $this->client->currency()->code,
+                        "value" => (string)$data['amount_with_fee']
+                    ]
+                ]
+            ],
+            "items"=> [
+                [
+                    "name" => ctrans('texts.invoice_number').'# '.$invoice->number,
+                    "quantity" => "1",
+                    "unit_amount" => [
+                        "currency_code" => $this->client->currency()->code,
+                        "value" => (string)$data['amount_with_fee']
+                    ],
+                ],
+            ],
+          ]
+          ]
+        ];
+        
+        $r = $this->gatewayRequest('/v2/checkout/orders', 'post', $order);
+
+        return $r->json()['id'];
+
+    }
+
+    public function gatewayRequest(string $uri, string $verb, array $data, ?array $headers = [])
+    {
+        $r = Http::withToken($this->omnipay_gateway->getToken())
+                ->withHeaders($this->getHeaders($headers))
+                ->{$verb}("{$this->api_endpoint_url}{$uri}", $data);
+
+        if($r->successful()) 
+            return $r;
+
+        throw new PaymentFailed("Gateway failure - {$r->body()}", 401);
+
+    }
+
+    private function getHeaders(array $headers = []): array
+    {
+        return array_merge([
+            'Accept' => 'application/json',
+            'Content-type' => 'application/json',
+            'Accept-Language' => 'en_US',
+        ], $headers);
+    }
+
+    /*
     public function processPaymentResponse($request)
     {
         $this->initializeOmnipayGateway();
@@ -221,6 +304,8 @@ class PayPalRestPaymentDriver extends BaseDriver
         return $items;
     }
 
+    */
+
     private function feeCalc($invoice, $invoice_total)
     {
         $invoice->service()->removeUnpaidGatewayFees();
@@ -241,4 +326,6 @@ class PayPalRestPaymentDriver extends BaseDriver
 
         return 0;
     }
+
+    
 }

resources/views/portal/ninja2020/gateways/paypal/pay.blade.php

@@ -1,8 +1,6 @@
 @extends('portal.ninja2020.layout.payments', ['gateway_title' => ctrans('texts.payment_type_credit_card'), 'card_title' => ctrans('texts.payment_type_credit_card')])
 
 @section('gateway_head')
-    <link href="{{ asset('css/card-js.min.css') }}" rel="stylesheet" type="text/css">
-
     <link
       rel="stylesheet"
       type="text/css"
@@ -12,6 +10,15 @@
 @endsection
 
 @section('gateway_content')
+    <form action="{{ route('client.payments.response') }}" method="post" id="server_response">
+        @csrf
+        <input type="hidden" name="payment_hash" value="{{ $payment_hash }}">
+        <input type="hidden" name="company_gateway_id" value="{{ $gateway->company_gateway->id }}">
+        <input type="hidden" name="gateway_response" id="gateway_response">
+        <input type="hidden" name="amount_with_fee" id="amount_with_fee" value="{{ $total['amount_with_fee'] }}"/>
+    </form>
+
+    <div class="alert alert-failure mb-4" hidden id="errors"></div>
 
 <div id="paypal-button-container" class="paypal-button-container"></div>
     <div class="card_container">
@@ -101,83 +108,16 @@
 @endsection
 
 @push('footer')
-<script src="https://www.paypal.com/sdk/js?components=buttons,hosted-fields&client-id=AdRZZt44vJYAtXirmzMjnvUMoFIloN9kpuSgshQB7SJqLHbgtMP_rcmhy83FYY4a-c3R-_e4wZC8E3oG" data-client-token="{!! $token !!}">
+<script src="https://www.paypal.com/sdk/js?components=buttons,hosted-fields&intent=capture&client-id={!! $client_id !!}" data-client-token="{!! $token !!}">
 </script>
 
 <script>
-paypal
-  .Buttons({
-    // Sets up the transaction when a payment button is clicked
-    createOrder: function () {
-      return fetch("/api/orders", {
-        method: "post",
-        // use the "body" param to optionally pass additional order information
-        // like product skus and quantities
-        body: JSON.stringify({
-          cart: [
-            {
-              sku: "213434",
-              quantity: "1",
-            },
-          ],
-        }),
-      })
-        .then((response) => response.json())
-        .then((order) => order.id);
-    },
-    // Finalize the transaction after payer approval
-    onApprove: function (data) {
-      return fetch(`/api/orders/${data.orderID}/capture`, {
-        method: "post",
-      })
-        .then((response) => response.json())
-        .then((orderData) => {
-          // Successful capture! For dev/demo purposes:
-          console.log(
-            "Capture result",
-            orderData,
-            JSON.stringify(orderData, null, 2)
-          );
-          const transaction = orderData.purchase_units[0].payments.captures[0];
-          alert(`Transaction ${transaction.status}: ${transaction.id}
 
-            See console for all available details
-          `);
-          // When ready to go live, remove the alert and show a success message within this page. For example:
-          // var element = document.getElementById('paypal-button-container');
-          // element.innerHTML = '<h3>Thank you for your payment!</h3>';
-          // Or go to another URL:  actions.redirect('thank_you.html');
-        });
-    },
-  })
-  .render("#paypal-button-container");
-
-// If this returns false or the card fields aren't visible, see Step #1.
 if (paypal.HostedFields.isEligible()) {
-  let orderId;
-
-  // Renders card fields
   paypal.HostedFields.render({ 
-    // Call your server to set up the transaction
+       
-    createOrder: () => {
+      createOrder: function(data, actions) {
-      return fetch("/api/orders", {
+        return "{!! $order_id !!}"  
-        method: "post",
-        // use the "body" param to optionally pass additional order information
-        // like product skus and quantities
-        body: JSON.stringify({
-          cart: [
-            {
-              sku: "cxcxcx",
-              quantity: "333",
-            },
-          ],
-        }),
-      })
-        .then((res) => res.json())
-        .then((orderData) => {
-          orderId = orderData.id; // needed later to complete capture
-          return orderData.id;
-        });
       },
       styles: {
       ".valid": {
@@ -261,9 +201,34 @@ if (paypal.HostedFields.isEligible()) {
         });
     });
   });
-} else {
-  // Hides card fields if the merchant isn't eligible
-  document.querySelector("#card-form").style = "display: none";
 }
+else {
+    document.querySelector("#card-form").style = "display: none";
+
+    paypal.Buttons({ 
+ env: 'sandbox', // sandbox | production
+
+client: {
+    sandbox:    "{{ $gateway->company_gateway->getConfigField('clientId') }}",
+
+},       
+      createOrder: function(data, actions) {
+        return "{!! $order_id !!}"  
+      },
+      onApprove: function(data, actions) {
+
+        return actions.order.capture().then(function(details) {                                    
+          
+          console.log(details);
+        });           
+
+            // document.getElementById("gateway_response").value =JSON.stringify( data );
+            // document.getElementById("server_response").submit();
+
+      }
+    }).render('#paypal-button-container');
+
+}
+
 </script>
 @endpush