protected function PayPalCheckoutClient::acquireAccessToken in Commerce PayPal 7.2

Acquire an access token from PayPal.

Return value

string[] The API response JSON converted to an associative array.

Throws

PayPalCheckoutAuthenticationException

1 call to PayPalCheckoutClient::acquireAccessToken()

PayPalCheckoutClient::getAccessToken in modules/checkout/lib/PayPalCheckoutClient.php

Returns the access token stored locally if any, or get one from PayPal.

File

modules/checkout/lib/PayPalCheckoutClient.php, line 113

Defines a class for consuming the PayPal Checkout API.

Class

PayPalCheckoutClient

Defines the PayPalCheckoutClient class.

Code

protected function acquireAccessToken() {
  $ch = curl_init();
  static::setDefaultCurlOptions($ch);
  $headers = array(
    'Authorization' => 'Basic ' . base64_encode($this->config['client_id'] . ':' . $this->config['secret']),
    'Content-Type' => 'application/x-www-form-urlencoded',
  ) + $this->headers;
  $url = $this
    ->baseUrl() . '/v1/oauth2/token';
  curl_setopt($ch, CURLOPT_HTTPHEADER, static::formatHeaders($headers));
  curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_POSTFIELDS, 'grant_type=client_credentials');

  // Submit the request to the PayPal server.
  $response = curl_exec($ch);

  // Ensure we got a successful response by inspecting the HTTP status code.
  $response_info = curl_getinfo($ch);
  if (is_resource($ch)) {
    curl_close($ch);
  }
  $json = drupal_json_decode($response);
  if ($response_info['http_code'] == 401) {

    // Throw an exception indicating authentication failed.
    $message = 'Authentication failed.';
    if (isset($json['error_description'])) {
      $message = sprintf('Error description: %s.', $json['error_description']);
    }
    throw new PayPalCheckoutAuthenticationException($message);
  }
  return $json;
}