iuguCreateSubscription.php

<?php 

public function iuguCreateSubscription($subscriptionData, $debug = false)
    {
        \Fuel\Core\Config::load('iugu');
        $url = \Fuel\Core\Config::get('iugu.url');
        $idIugu = \Model\Treasury_Marketplace_Store::getTokenStore(new \MongoId($subscriptionData['_store']), true);

        $modelPlan = new Treasury_Marketplace_Store_Plan();
        $modelBrother = new Hospitality_Brother();

        $getPlan = $modelPlan->get(new \MongoId($subscriptionData['_plan']));
        $getBrother = $modelBrother->get(new \MongoId($subscriptionData['_brother']));


        $newSubscription = [
            'plan_identifier' => $getPlan['iugu']['identifier'],
            'customer_id' => $getBrother['iugu']['id']
        ];

        $postData = http_build_query($newSubscription);

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url . "/subscriptions");
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_USERPWD, $idIugu . ":" . "");

        $headers = array();
        $headers[] = "Content-Type: application/x-www-form-urlencoded";
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

        $result = curl_exec($ch);

        if ($debug) {
            $info = curl_getinfo($ch);
            var_dump($info, $result);
            die;
        }
        $result = curl_exec($ch);
        if (curl_errno($ch)) {
            \Fuel\Core\Log::error(curl_error($ch));
            return false;
        }

        if ($result) {
            \Model\Log::register('payment gateway', [
                'type' => 'backoffice',
                'gateway' => 'iugu',
                'action' => 'create subscription',
                'uri' => \Fuel\Core\Uri::current(),
                'result' => json_decode($result, true),
                'success' => 'subscription create success in gateway']);
        }

        curl_close($ch);

        return [
            'iugu-api' => json_decode($result, true)
        ];
    }

metodo que recebe o post.php

<?php 
public function post_add()
    {

        $SubscriptionModel = new Treasury_Subscription();
        $postData = \Fuel\Core\Input::post();

        $where = [
            '_store' => $postData['_store'],
            '_brother' => $postData['_brother'],
            '_plan' => $postData['_plan'],
            'expires_at' => $postData['expires_at']
        ];
        $findDuplicate = $SubscriptionModel->findOne($where);
        $checkDuplicate = !empty($findDuplicate) ? true : false;
        if ($checkDuplicate) {
            return $this->response_json(['error' => 'A Ação que você está tentando executar irá duplicar uma assinatura']);
        }

        $iugu = $SubscriptionModel->iuguCreateSubscription($postData);

//        var_dump($iugu);
//        die;

        if (isset($iugu['iugu-api']['errors'])) {
            return $this->response_json(['error' => $iugu['iugu-api']['errors']]);
        }

        $postData['iugu'] = $iugu['iugu-api'];

        if (!empty($postData)) {
            $add = $SubscriptionModel->add($postData);
        }

        return $this->response_json($add);
    }