Implement Payum/Laravel recurring payment

I have some issues trying to get this working, I've implemented the checkout express (or seems to be) successfully, but also my system needs subscription option, following this example.

Now, my problem is that in Laravel you cannot simply put some random files, so I'm trying to do it in the correct way, sadly, there is no documentation of the classes and methods including on the library.

I've created some functions within controllers (I don't know if this the right way) the problem I'm facing now is trying to createRecurringPayment() to apply the desired amount of the recurring payment, is the final step I guess.

Thanks for yout help.

app/controllers/PaypalController.php

public function prepareExpressCheckout(){
    $storage = $this->getPayum()->getStorage('Payum\Core\Model\ArrayObject');
    $details = $storage->createModel();
    $details['PAYMENTREQUEST_0_CURRENCYCODE'] = 'USD';
    $details['PAYMENTREQUEST_0_AMT'] = 1.23;
    $storage->updateModel($details);
    $captureToken = $this->getTokenFactory()->createCaptureToken('paypal_es', $details, 'payment_done');
    $details['RETURNURL'] = $captureToken->getTargetUrl();
    $details['CANCELURL'] = $captureToken->getTargetUrl();
    $storage->updateModel($details);
    return \Redirect::to($captureToken->getTargetUrl());
}

public function prepareSubscribe(){
    $storage = $this->getPayum()->getStorage('Payum\Core\Model\ArrayObject');
    $details = $storage->createModel();

    $details['PAYMENTREQUEST_0_AMT'] = 0;
    $details['L_BILLINGTYPE0'] = Api::BILLINGTYPE_RECURRING_PAYMENTS;
    $details['L_BILLINGAGREEMENTDESCRIPTION0'] = "Suscripción por X meses";
    $details['NOSHIPPING'] = 1;

    $storage->updateModel($details);
    $captureToken = $this->getTokenFactory()->createCaptureToken('paypal_es', $details, 'payment_done');
    $storage->updateModel($details);

    return \Redirect::to($captureToken->getTargetUrl());
}

public function createRecurringPayment(){
    $payum_token = Input::get('payum_token');
    $request = \App::make('request');
    $request->attributes->set('payum_token', $payum_token);
    $token = ($request);
    //$this->invalidate($token);

    $agreementStatus = new GetHumanStatus($token);
    $payment->execute($agreementStatus);

    if (!$agreementStatus->isSuccess()) {
        header('HTTP/1.1 400 Bad Request', true, 400);
        exit;
    }

    $agreementDetails = $agreementStatus->getModel();

    $storage = $this->getPayum()->getStorage('Payum\Core\Model\ArrayObject');

    $recurringPaymentDetails = $storage->createModel();
    $recurringPaymentDetails['TOKEN'] = $agreementDetails['TOKEN'];
    $recurringPaymentDetails['DESC'] = 'Subscribe to weather forecast for a week. It is 0.05$ per day.';
    $recurringPaymentDetails['EMAIL'] = $agreementDetails['EMAIL'];
    $recurringPaymentDetails['AMT'] = 0.05;
    $recurringPaymentDetails['CURRENCYCODE'] = 'USD';
    $recurringPaymentDetails['BILLINGFREQUENCY'] = 7;
    $recurringPaymentDetails['PROFILESTARTDATE'] = date(DATE_ATOM);
    $recurringPaymentDetails['BILLINGPERIOD'] = Api::BILLINGPERIOD_DAY;

    $payment->execute(new CreateRecurringPaymentProfile($recurringPaymentDetails));
    $payment->execute(new Sync($recurringPaymentDetails));

    $doneToken = $this->createToken('paypal_es', $recurringPaymentDetails, 'payment_done');

    return \Redirect::to($doneToken->getTargetUrl());
}

app/routes.php

    Route::get('/payment', array('as' => 'payment', 'uses' => 'PaymentController@payment'));
    Route::get('/payment/done', array('as' => 'payment_done', 'uses' => 'PaymentController@done'));
    Route::get('/payment/paypal/express-checkout/prepare', array('as' => 'paypal_es_prepare', 'uses' => 'PaypalController@prepareExpressCheckout'));
    Route::get('/payment/paypal/subscribe/prepare', array('as' => 'paypal_re_prepare', 'uses' => 'PaypalController@prepareSubscribe'));
    Route::get('/payment/paypal/subscribe/create', array('as' => 'payment_create', 'uses' => 'PaypalController@createRecurringPayment'));

Solution

I have found the problem. It is with the parameters we pass to the create recurring payment function. Here are functions for agreement and payment creation. It should work fine.

<?php

namespace App\Http\Controllers;

use Payum\Core\Request\GetHumanStatus;
use Payum\LaravelPackage\Controller\PayumController;
use Payum\Paypal\ExpressCheckout\Nvp\Api;
use Payum\Core\Request\Sync;
use Payum\Paypal\ExpressCheckout\Nvp\Request\Api\CreateRecurringPaymentProfile;
use Illuminate\Http\Request;
use App\Http\Requests;
use App\Http\Controllers\Controller;

class PayPalController extends PayumController {

    public function prepareSubscribeAgreement() {

        $storage = $this->getPayum()->getStorage('Payum\Core\Model\ArrayObject');

        $details = $storage->create();
        $details['PAYMENTREQUEST_0_AMT'] = 0;
        $details['L_BILLINGTYPE0'] = Api::BILLINGTYPE_RECURRING_PAYMENTS;
        $details['L_BILLINGAGREEMENTDESCRIPTION0'] = "Weather subscription";
        //$details['NOSHIPPING'] = 1;
        $storage->update($details);

        $captureToken = $this->getPayum()->getTokenFactory()->createCaptureToken('paypal_ec', $details, 'paypal_subscribe');

        return \Redirect::to($captureToken->getTargetUrl());
    }

    public function createSubscribePayment(Request $request) {
        $request->attributes->set('payum_token', $request->input('payum_token'));

        $token = $this->getPayum()->getHttpRequestVerifier()->verify($request);
        $gateway = $this->getPayum()->getGateway($token->getGatewayName());

        $agreementStatus = new GetHumanStatus($token);
        $gateway->execute($agreementStatus);

        if (!$agreementStatus->isCaptured()) {
            header('HTTP/1.1 400 Bad Request', true, 400);
            exit;
        }

        $agreement = $agreementStatus->getModel();

        $storage = $this->getPayum()->getStorage('Payum\Core\Model\ArrayObject');

        $recurringPayment = $storage->create();
        $recurringPayment['TOKEN'] = $agreement['TOKEN'];
        $recurringPayment['PAYERID'] = $agreement['PAYERID'];
        $recurringPayment['PROFILESTARTDATE'] = date(DATE_ATOM);
        $recurringPayment['DESC'] = $agreement['L_BILLINGAGREEMENTDESCRIPTION0'];
        $recurringPayment['BILLINGPERIOD'] = Api::BILLINGPERIOD_DAY;
        $recurringPayment['BILLINGFREQUENCY'] = 7;
        $recurringPayment['AMT'] = 0.05;
        $recurringPayment['CURRENCYCODE'] = 'USD';
        $recurringPayment['COUNTRYCODE'] = 'US';
        $recurringPayment['MAXFAILEDPAYMENTS'] = 3;

        $gateway->execute(new CreateRecurringPaymentProfile($recurringPayment));
        $gateway->execute(new Sync($recurringPayment));

        $captureToken = $this->getPayum()->getTokenFactory()->createCaptureToken('paypal_ec', $recurringPayment, 'payment_done');

        return \Redirect::to($captureToken->getTargetUrl());
    }

    public function done(Request $request) {
        /** @var Request $request */
        //$request = \App::make('request');
        $request->attributes->set('payum_token', $request->input('payum_token'));

        $token = $this->getPayum()->getHttpRequestVerifier()->verify($request);
        $gateway = $this->getPayum()->getGateway($token->getGatewayName());

        $gateway->execute($status = new GetHumanStatus($token));

        return \Response::json(array(
                    'status' => $status->getValue(),
                    'details' => iterator_to_array($status->getFirstModel())
        ));
    }

}

The routes:

Route::get('paypal/agreement', 'PayPalController@prepareSubscribeAgreement');
    Route::get('paypal/subscribe', [
        'as' => 'paypal_subscribe',
        'uses' => 'PayPalController@createSubscribePayment'
    ]);
    Route::get('paydone', [
        'as' => 'payment_done',
        'uses' => 'PayPalController@done'
    ]);

Simply open www.example.com/paypal/agreement and it should take you to PayPal