Brtdku

I am new to PayPal SDK and trying to use the PayPal Checkout SDK in a Laravel application.

I have followed most of the instruction from the following github page, the first call to the function create-payment seems to work; however when I press continue on the PayPal pop-up window to execute the transaction it fails and produces the following error:

Error: Request to post /api/execute-payment failed with 500 error. Correlation id: unknown

    {

        "message": "Got Http response code 400 when accessing https://api.sandbox.paypal.com/v1/payments/payment/PAY-3RB62059V6076291ALRCHT6Y/execute.",

        "exception": "PayPal\Exception\PayPalConnectionException",

        "file": "C:\websites\online-webstore\vendor\paypal\rest-api-sdk-php\lib\PayPal\Core\PayPalHttpConnection.php",

        "line": 207, {...} 

Checking the link: https://api.sandbox.paypal.com/v1/payments/payment/PAY-3RB62059V6076291ALRCHT6Y/execute, I get the error:

{"name":"AUTHENTICATION_FAILURE","message":"Authentication failed due to invalid authentication credentials or a missing Authorization header.","links":[{"href":"https://developer.paypal.com/docs/api/overview/#error","rel":"information_link"}]}

This is my setup so for the client side:

<script src="https://www.paypalobjects.com/api/checkout.js"></script>



  <div id="paypal-button"></div>



  <script>

    paypal.Button.render({

      env: 'sandbox', // Or 'production'

      // Set up the payment:

      // 1. Add a payment callback

      payment: function(data, actions) {

        // 2. Make a request to your server

        return actions.request.post('/api/create-payment')

          .then(function(res) {

            // 3. Return res.id from the response

            return res.id;

          });

      },

      // Execute the payment:

      // 1. Add an onAuthorize callback

      onAuthorize: function(data, actions) {

        // 2. Make a request to your server

        return actions.request.post('/api/execute-payment', {

          paymentID: data.paymentID,

          payerID:   data.payerID

        })

          .then(function(res) {

              console.log(res);

              alert('PAYMENT WENT THROUGH!!');

          }).catch(function(err){

            console.log("Error "+err);

          });

      }

    }, '#paypal-button');

  </script>

In my controller is set up like so:

class CheckoutController extends Controller

{



    private $apiContext;

    private $client_id;

    private $secret;



    public function __construct()

    {

        $this->middleware('auth', ['except'=>['createPayment', 'executePayment']]);



        // Detect if we are running in live mode or sandbox

        if(config('paypal.settings.mode') == 'live'){

            $this->client_id = config('paypal.live_client_id');

            $this->secret = config('paypal.live_secret');

        } else {

            $this->client_id = config('paypal.sandbox_client_id');

            $this->secret = config('paypal.sandbox_secret');

        }



        // Set the Paypal API Context/Credentials

        $this->apiContext = new ApiContext(new OAuthTokenCredential($this->client_id, $this->secret));

        $this->apiContext->setConfig(config('paypal.settings'));

    }



    public function createPayment () {

        $payer = new Payer();

        $payer->setPaymentMethod("paypal");



        $item1 = new Item();

        $item1->setName('Ground Coffee 40 oz')

            ->setCurrency('USD')

            ->setQuantity(1)

            ->setSku("123123") // Similar to `item_number` in Classic API

            ->setPrice(7.5);

        $item2 = new Item();

        $item2->setName('Granola bars')

            ->setCurrency('USD')

            ->setQuantity(5)

            ->setSku("321321") // Similar to `item_number` in Classic API

            ->setPrice(2);



        $itemList = new ItemList();

        $itemList->setItems(array($item1, $item2));



        $details = new Details();

        $details->setShipping(1.2)

            ->setTax(1.3)

            ->setSubtotal(17.50);



        $amount = new Amount();

        $amount->setCurrency("USD")

        ->setTotal(20)

        ->setDetails($details);



        $transaction = new Transaction();

        $transaction->setAmount($amount)

        ->setItemList($itemList)

        ->setDescription("Payment description")

        ->setInvoiceNumber(uniqid());



        $baseUrl = URL::to('/');

        $redirectUrls = new RedirectUrls();

        $redirectUrls->setReturnUrl("http://online-webstore/paypalRedirect/true")

        ->setCancelUrl("http://online-webstore/paypalRedirect/false");



        $payment = new Payment();

        $payment->setIntent("sale")

        ->setPayer($payer)

        ->setRedirectUrls($redirectUrls)

        ->setTransactions(array($transaction));



        $request = clone $payment;



        try {

        $payment->create($this->apiContext);

        } catch (Exception $ex) {

            exit(1);

        }



        $approvalUrl = $payment->getApprovalLink();



        return $payment;

    }



    public function executePayment (Request $request) {



        $paymentId = $request->paymentID;

        $payment = Payment::get($paymentId, $this->apiContext);



        $execution = new PaymentExecution();

        $execution->setPayerId($request->PayerID);



        try {

            $result = $payment->execute($execution, $this->apiContext);

        } catch (PayPalExceptionPayPalConnectionException $ex) {

           echo $ex->getData(); // Prints the detailed error message 

           die($ex);

        }



        return $result;

    }



}

I have also correctly included my credential in my .env file and running it in sandbox mode.

Can someone direct me where I maybe going wrong also I am happy to provided any more information if required.

I had good look through the log file and I noticed the error:

{"name":"VALIDATION_ERROR","details":[{"field":"payer_id","issue":"Payer ID is invalid"}],"message":"Invalid request - see details","information_link":"https://developer.paypal.com/docs/api/payments/#errors","debug_id":"81885e7bbe957"}

It turns out that I made a slight typo in my code:

$execution->setPayerId($request->PayerID);

It should actually be:

$execution->setPayerId($request->payerID);