[oauth_consumer_key] => x...0
    [oauth_consumer_secret] => j...l
    [store_base_url] => http://magento.example.com/
    [oauth_consumer_secret] => 5...n

/oauth/token/request

/oauth/token/access

$credentials = new OAuthCommonConsumerCredentials($consumerKey, $consumerSecret, $magentoBaseUrl);
$oAuthClient = new OauthClient($credentials);

// get admin Token to create the customer Account in realm Data stores
        $ch = curl_init('http://openam/json/authenticate');
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            'X-OpenAM-Username: uradmin',
            'X-OpenAM-Password: urpassword',
            'Accept-API-Version: resource=2.0, protocol=1.0'
          )
        );

        $result = curl_exec($ch);

        curl_close($ch);

        if (array_key_exists('tokenId', json_decode($result, true))) {
            $adminToke = json_decode($result, true)["tokenId"];

            //create user in OpenAM Customer Realm
            $data = array("username" => $email, "userpassword" => $password,"mail"=>$email);
            $data_string = json_encode($data);

            $ch = curl_init('http://openam/json/admingroup/users/?_action=create');
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                'Content-Type: application/json',
                'iplanetDirectoryPro:'.$adminToke.''
              )
            );


            curl_close($ch);

            // create Magento Customer in Magento DB


            $customer=$this->_objectManager->create('MagentoCustomerModelCustomer');
            $customer->setWebsiteId($this->_objectManager->create('SupplierDelegateHelperData')->getCurrentWebsiteId());
            $customer->setStoreId($this->_objectManager->create('ManufactureDealersHelperData')->getCurrentStoreId());
            $customer->setGroupId(5);
            $customer->setFirstname($firstName);
            $customer->setLastname($lastName);
            $customer->setEmail($email);
            $customer->setPassword($password);


            try{
                $customer->save();
            }
            catch   (Exception $exception)
            {
                $this->messageManager->addError($exception->getMessage());
                return $this->resultRedirectFactory->create()->setPath('*/*/register');
            }
            //save SupplierDelgate Model
            $model = $this->_objectManager->create('ManufactureDealersModelSuppliers');
            $model->setDelegateId($customer->getId());
            $model->setParentSupplierId($supplierParentId);
            $model->setRole($role);
            $model->save();

            $address =$this->_objectManager->create('MagentoCustomerModelAddress');
            $address->setCustomerId($customer->getId())
              ->setFirstname($customer->getFirstname())
              ->setMiddleName($customer->getMiddlename())
              ->setLastname($customer->getLastname())
              ->setCountryId('SA')
              //->setRegionId('1') //state/province, only needed if the country is USA
              ->setPostcode($postCode)
              ->setCity($city)
              ->setTelephone($telephone)
              ->setFax($fax)
              ->setCompany($company)
              ->setStreet($street)
              ->setIsDefaultBilling('1')
              ->setIsDefaultShipping('1')
              ->setSaveInAddressBook('1');

            try{
                $address->save();
                $this->_objectManager->create('ManufactureDealersHelperData')->setCustomerStatus("Active",$customer->getId());

                $this->messageManager->addSuccess(__('registration have been completed Successfully '));
                $this->_redirect('customer/account/login/');

            }
            catch (Exception $e) {
                Zend_Debug::dump($e->getMessage());
            }

Fatal error: Uncaught Error: Class 'OauthClient' not found in /public_html/magento2/checklogin.php:22 Stack trace: #0 {main} thrown in /public_html/magento2/checklogin.php on line 22