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Uncaught PPConnectionException Http response code 400

paypal php api sdk

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#1 nodirtyrockstar


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Posted 18 November 2013 - 02:55 PM

Basically what I can see is that I am failing to create the apiContext object. Can anyone see where the error is? Please tell me how I can improve the question.

Here is the error:

Fatal error: Uncaught exception 'PayPal\Exception\PPConnectionException' with message 'Got Http response code 400 when accessing https://api.sandbox....ayments/payment.' in /vendor/paypal/sdk-core-php/lib/PayPal/Core/PPHttpConnection.php:104 Stack trace: #0 /vendor/paypal/sdk-core-php/lib/PayPal/Transport/PPRestCall.php(44): PayPal\Core\PPHttpConnection->execute('{"intent":"sale...') #1 /vendor/paypal/rest-api-sdk-php/lib/PayPal/Api/Payment.php(246): PayPal\Transport\PPRestCall->execute(Array, '/v1/payments/pa...', 'POST', '{"intent":"sale...') #2 /pymt.php(38): PayPal\Api\Payment->create(Object(PayPal\Rest\ApiContext)) #3 {main} thrown in /vendor/paypal/sdk-core-php/lib/PayPal/Core/PPHttpConnection.php on line 104

This is the PHP sample I'm using. I am trying to run it off my server. If a customer clicks the pay with paypal button, it runs the following sample script:


require __DIR__ . '/../bootstrap.php';
use PayPal\Api\Address;
use PayPal\Api\Amount;
use PayPal\Api\Payer;
use PayPal\Api\Payment;
use PayPal\Api\FundingInstrument;
use PayPal\Api\RedirectUrls;
use PayPal\Api\Transaction;

$payer = new Payer();

$amount = new Amount();

$transaction = new Transaction();
$transaction->setDescription('This is the payment description.');

$baseUrl = getBaseUrl();
$redirectUrls = new RedirectUrls();

$payment = new Payment();

try {
} catch (\PPConnectionException $ex) {
echo 'Exception: ' . $ex->getMessage() . PHP_EOL;

foreach ($payment->getLinks() as $link) {
if ($link->getRel() == 'approval_url') {
$redirectUrl = $link->getHref();

$_SESSION['paymentId'] = $payment->getId();
if(isset($redirectUrl)) {
header('Location: $redirectUrl');

Here's the redacted bootstrap.php:


* Sample bootstrap file.

// Include the composer autoloader
if(!file_exists(__DIR__ .'/vendor/autoload.php')) {
echo "The 'vendor' folder is missing. You must run 'composer update --no-dev' to resolve application dependencies.\nPlease see the README for more information.\n";

require __DIR__ . '/vendor/autoload.php';
require __DIR__ . '/common.php';

use PayPal\Rest\ApiContext;
use PayPal\Auth\OAuthTokenCredential;

$apiContext = getApiContext();

Helper method for getting an APIContext for all calls
* @return PayPal\Rest\ApiContext
function getApiContext() {

// ### Api context
// Use an ApiContext object to authenticate 
// API calls. The clientId and clientSecret for the 
// OAuthTokenCredential class can be retrieved from 
// developer.paypal.com

$apiContext = new ApiContext(
new OAuthTokenCredential(

// Register the sdk_config.ini file in current directory
// as the configuration source.
if(!defined("PP_CONFIG_PATH")) {
define("PP_CONFIG_PATH", __DIR__);

return $apiContext;
Can anyone help? Let me know if you need more info. Thanks up front.


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