'enabled'     => true,
'private_key' => env('PAYMILL_PRIVATE_KEY'),
'public_key'  => env('PAYMILL_PUBLIC_KEY'),

'enabled'     => true,
'private_key' => env('PAYMILL_PRIVATE_KEY'),
'public_key'  => env('PAYMILL_PUBLIC_KEY'),
'url_return'  => 'payment.success',
'url_cancel'  => 'payment.error',

'enabled'     => true,
'private_key' => env('PAYMILL_PRIVATE_KEY'),
'public_key'  => env('PAYMILL_PUBLIC_KEY'),

'enabled'    => true,
'username'   => 'schtr4jh-facilitator_api1.schtr4jh.net',
'password'   => '1390585136',
'signature'  => 'AOZR6pqlRlwo0Ex9.oQbP2uvOalsAHQdlhdfczB0.B699lqJXv8pigFj',
'url'        => 'https://api-3t.sandbox.paypal.com/nvp',
'url_token'  => 'https://www.sandbox.paypal.com/cgi-bin/webscr?cmd=_express-checkout&token=[token]',
'url_return' => 'payment.success',
'url_cancel' => 'payment.error',

'enabled'    => false,
'id'         => 'AYlzupNqmg7177ZI57MfI26mgkzN-n8QQewuicaHmi7OOEf5LNy5FIi7ooFIbwo-t9_LQR9NOqtLslF_',
'secret'     => 'ECQLZ6zyH8b6JgG3hGN8Qg1u6ezDiT0HpfCK7MnKcQyyQoYtghnAndYJLu5p1g0UJmLMj7_IV1Qdbsv3',
'mode'       => 'sandbox',
'url_return' => 'payment.success',
'url_cancel' => 'payment.error',
'log'        => [
    'enabled' => true,
    'level'   => 'DEBUG', // 'FINE' for production
],

'enabled'     => false,
'url_waiting' => 'payment.waiting',

// list payments
'payment'          => route('PaymentController@payment', 'payment/{listing}', 'GET'),

// apply promo code
'payment.promo'    => route('PaymentController@promo', 'payment/{handler}/{listing}/promo', 'POST'),

// validate payment request
'payment.validate' => route('PaymentController@validate', 'payment/{handler}/{listing}/validate', 'POST'),

// start payment process
'payment.start'    => route('PaymentController@start', 'payment/{handler}/{listing}/start', 'POST|GET'),

// payment valid
'payment.success'  => route('PaymentController@success', 'payment/{handler}/{listing}/success', 'GET'),

// payment invalid
'payment.error'    => route('PaymentController@error', 'payment/{handler}/{listing}/error', 'GET'),

// payment not processed yet
'payment.waiting'  => route('PaymentController@waiting', 'payment/{handler}/{listing}/waiting', 'GET'),

<?php namespace Net\Http;

use Illuminate\Http\Request;
use Net\Http\Payment\ZoneLog;
use Net\Http\Payment\ZoneOrder;
use Net\Http\Requests\PromoCodeRequest;
use Pckg\Payment\Service\LaravelPayment;
use Zone\Content\SelectItem;
use Zone\Listing\Listing;
use Zone\Listing\PaymentMethod;
use Zone\Listing\PromoCode;

class PaymentController extends BaseController
{

    use LaravelPayment;

    protected $paymentService;

    public function __construct()
    {
        $this->paymentService = $this->createPaymentService();
    }

    private function preparePaymentService($handler, Listing $listing)
    {
        $listing->abortIfNotMine();

        $this->paymentService->prepare(new ZoneOrder($listing), $handler, new ZoneLog($listing));
    }

    public function getPayment(Listing $listing)
    {
        $listing->abortIfNotMine();

        $this->paymentService->setOrder(new ZoneOrder($listing));

        $this->vendorAsset('schtr4jh/payment/src/Pckg/Payment/public/payment.js', 'footer');

        return view('payment.index', [
            'listing'        => $listing,
            'paymentMethods' => PaymentMethod::where('enabled', 1)->get(),
            'paymentService' => $this->paymentService,
            'expYears'       => range(date('Y') + 0, date('Y') + 16),
            'expMonths'      => SelectItem::cardExpirationMonths()->get(),
        ]);
    }

    public function postStart($handler, Listing $listing)
    {
        $this->preparePaymentService($handler, $listing);
        $success = $this->paymentService->getHandler()->start();

        return [
            'success' => true,
            'modal'   => $success
                ? '#dialog-payment-success'
                : '#dialog-payment-error',
        ];
    }

    public function getStart($handler, Listing $listing)
    {
        return $this->getStatus($handler, $listing, 'start');
    }

    public function getSuccess($handler, Listing $listing)
    {
        return $this->getStatus($handler, $listing, 'success');
    }

    public function getError($handler, Listing $listing)
    {
        return $this->getStatus($handler, $listing, 'error');
    }

    public function getWaiting($handler, Listing $listing)
    {
        return $this->getStatus($handler, $listing, 'waiting');
    }

    public function postValidate($handler, Listing $listing, Request $request)
    {
        $this->preparePaymentService($handler, $listing);

        return $this->paymentService->getHandler()->validate($request);
    }

    public function postPromo($handler, Listing $listing, PromoCodeRequest $request)
    {
        $this->preparePaymentService($handler, $listing);

        $canApply = false;
        $code = PromoCode::where('code', $request->promo_code)->first();
        if ($code && (($code->discount_value && $code->discount_value < $this->paymentService->getTotal()) || $code->discount_percentage)) {
            $listing->forceFill([
                'promo_code_id' => $code->id,
            ])->save();

            $canApply = true;
        } else {
            $listing->forceFill([
                'promo_code_id' => null,
            ])->save();
        }

        return [
            'success'           => true,
            'promo_notice'      => $request->promo_code
                ? ($canApply
                    ? trans(
                        'payment.label.promo_code_valid',
                        ['discount' => $listing->promoCode->getDiscount($this->paymentService->getCurrency())]
                    ) : trans('payment.label.promo_code_invalid')
                ) : '',
            'new_handler_price' => $this->paymentService->getHandler()->getTotalToPay(),
            'new_button'        => trans('payment.paymill.btn.pay') . ' ' . $this->paymentService->getTotalToPayWithCurrency(),
        ];
    }

    protected function getStatus($handler, Listing $listing, $action)
    {
        $this->preparePaymentService($handler, $listing);
        $this->paymentService->getHandler()->{$action}();

        return view('payment.' . $action, [
            'listing' => $listing,
        ]);
    }

}