Add sample code for paypal payment type

README.md

@@ -125,17 +125,6 @@ If you do not want to use an ini file or want to pick your configuration dynamic
 
         $this->_apiContext = Paypalpayment::apiContext($this->_ClientId, $this->_ClientSecret);
 
-        // Uncomment this step if you want to use per request 
-        // dynamic configuration instead of using sdk_config.ini
-
-        $this->_apiContext->setConfig(array(
-            'mode' => 'sandbox',
-            'http.ConnectionTimeOut' => 30,
-            'log.LogEnabled' => true,
-            'log.FileName' => __DIR__.'/../PayPal.log',
-            'log.LogLevel' => 'FINE'
-        ));
-
     }
 
 ```
@@ -183,17 +172,6 @@ class PaypalPaymentController extends BaseController {
 
         $this->_apiContext = Paypalpayment::ApiContext($this->_ClientId, $this->_ClientSecret);
 
-        // Uncomment this step if you want to use per request
-        // dynamic configuration instead of using sdk_config.ini
-
-        $this->_apiContext->setConfig(array(
-            'mode' => 'sandbox',
-            'service.EndPoint' => 'https://api.sandbox.paypal.com',
-            'http.ConnectionTimeOut' => 30,
-            'log.LogEnabled' => true,
-            'log.FileName' => __DIR__.'/../PayPal.log',
-            'log.LogLevel' => 'FINE'
-        ));
     }
 
 }
@@ -209,6 +187,7 @@ $this->_apiContext->setConfig($flatConfig);
 ```
 
 ##2-Create Payment 
+#Credit card payment
 Add the `create()` function to the `PaypalPaymentController` Controller 
 
 ```php
@@ -335,6 +314,114 @@ Add the `create()` function to the `PaypalPaymentController` Controller
         dd($payment);
     } 
 ```
+#paypal payment
+```
+    public function store()
+    {
+        // ### Payer
+        // A resource representing a Payer that funds a payment
+        // For paypal account payments, set payment method
+        // to 'paypal'.
+        $payer = Paypalpayment::payer();
+        $payer->setPaymentMethod("paypal");
+
+        // ### Itemized information
+        // (Optional) Lets you specify item wise
+        // information
+        $item1 = Paypalpayment::item();
+        $item1->setName('Ground Coffee 40 oz')
+                ->setDescription('Ground Coffee 40 oz')
+                ->setCurrency('USD')
+                ->setQuantity(1)
+                ->setTax(0.3)
+                ->setPrice(7.50);
+
+        $item2 = Paypalpayment::item();
+        $item2->setName('Granola bars')
+                ->setDescription('Granola Bars with Peanuts')
+                ->setCurrency('USD')
+                ->setQuantity(5)
+                ->setTax(0.2)
+                ->setPrice(2);
+
+        $itemList = Paypalpayment::itemList();
+        $itemList->setItems(array($item1, $item2));
+
+        $details = Paypalpayment::details();
+        $details->setShipping('1.2')
+                ->setTax('1.3')
+                //total of items prices
+                ->setSubtotal('17.5');
+
+        // ### Additional payment details
+        // Use this optional field to set additional
+        // payment information such as tax, shipping
+        // charges etc.
+        $details = Paypalpayment::details();
+        $details->setShipping(1.2)
+            ->setTax(1.3)
+            ->setSubtotal(17.50);
+
+        // ### Amount
+        // Lets you specify a payment amount.
+        // You can also specify additional details
+        // such as shipping, tax.
+        $amount = Paypalpayment::amount();
+        $amount->setCurrency("USD")
+            ->setTotal(20)
+            ->setDetails($details);
+
+        // ### Transaction
+        // A transaction defines the contract of a
+        // payment - what is the payment for and who
+        // is fulfilling it. 
+        $transaction = Paypalpayment::transaction();
+        $transaction->setAmount($amount)
+            ->setItemList($itemList)
+            ->setDescription("Payment description")
+            ->setInvoiceNumber(uniqid());
+
+        // ### Redirect urls
+        // Set the urls that the buyer must be redirected to after 
+        // payment approval/ cancellation.
+        $baseUrl = "http://localhost:8000";
+        $redirectUrls = Paypalpayment::redirectUrls();
+        $redirectUrls->setReturnUrl("{$baseUrl}/callback?success=true")
+            ->setCancelUrl("{$baseUrl}/callback?success=false");
+
+        // ### Payment
+        // A Payment Resource; create one using
+        // the above types and intent set to 'sale'
+        $payment = Paypalpayment::payment();
+        $payment->setIntent("sale")
+            ->setPayer($payer)
+            ->setRedirectUrls($redirectUrls)
+            ->setTransactions(array($transaction));
+
+        // ### Create Payment
+        // Create a payment by calling the 'create' method
+        // passing it a valid apiContext.
+        // (See bootstrap.php for more on `ApiContext`)
+        // The return object contains the state and the
+        // url to which the buyer must be redirected to
+        // for payment approval
+        try {
+            $payment->create($this->apiContext);
+        } catch (\Exception $ex) {
+            \Log::error($ex);
+        }
+
+        // ### Get redirect url
+        // The API response provides the url that you must redirect
+        // the buyer to. Retrieve the url from the $payment->getApprovalLink()
+        // method
+        $approvalUrl = $payment->getApprovalLink();
+        echo "Created Payment Using PayPal. Please visit the URL to Approve.Payment <a href={$approvalUrl}>{$approvalUrl}</a>";
+        var_dump($payment);
+    }
+
+```
+
 ##3-List Payment
 Add the `index()` function to the `PaypalPaymentController` Controller 
 ```php