Payment.php

/**
     * Redirect the User to Paystack / Paypal Payment Page
     * @param Request $request
     * @return URL
     */
    public function redirectToGateway(Request $request)
    {
        //Check if user is logged in
        if(Auth::check()){
            //Check if the subscription for Professional Plan
            if($request->get('plan') == 'pro'){
                if($request->get('payMethod') == 'paystack'){
                    $email =$request->get('email') ;
                    $amount =$request->get('amount1') ;

                    $curl = curl_init();

                    curl_setopt_array($curl, array(
                        CURLOPT_URL => "https://api.paystack.co/transaction/initialize",
                        CURLOPT_RETURNTRANSFER => true,
                        CURLOPT_CUSTOMREQUEST => "POST",
                        CURLOPT_SSL_VERIFYPEER => false,
                        CURLOPT_SSL_VERIFYHOST => 2,
                        CURLOPT_SSLVERSION => 6,
                        CURLOPT_USERAGENT => "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1",
                        CURLOPT_POSTFIELDS => json_encode([
                            'amount'=>$amount,
                            'email'=>$email,
                            'callback_url' =>'http://localhost:8000/payment/callback'
                        ]),
                        CURLOPT_HTTPHEADER => [
                            "authorization: Bearer sk_test_899d59b2451eecfa9392c64a7c8f32b661f66659",
                            "content-type: application/json",
                            "cache-control: no-cache"
                        ],
                    ));

                    $response = curl_exec($curl);
                    $err = curl_error($curl);

                    if($err){
                        // there was an error contacting the Paystack API
                        return redirect('billing')->with('status', 'There was an error connecting to Paystack API. Please try again');
                        //die('Curl returned error: ' . $err);
                    }

                    $tranx = json_decode($response);

                    if(!$tranx->status){
                        // there was an error from the API
                        return redirect('billing')->with('status', 'There was an error from Paystack API. Please try again');
                    }

                    // store transaction reference so we can query in case user never comes back perhaps due to network issue
                    $lastTransref = $tranx->data->reference;

                    // redirect to page so User can pay
                    return Redirect()->away($tranx->data->authorization_url);
                }
            }
        }else{
            return redirect('login')->with('status', 'Please login to your PushIt account');
        }
    }

    //Callback URL for paystack
    public function handlePayStackCallback()
    {
        $curl = curl_init();
        $reference = isset($_GET['reference']) ? $_GET['reference'] : '';
        if(!$reference){
            die('No reference supplied');
        }

        curl_setopt_array($curl, array(
            CURLOPT_URL => "https://api.paystack.co/transaction/verify/" . rawurlencode($reference),
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_SSL_VERIFYPEER => false,
            CURLOPT_SSL_VERIFYHOST => 2,
            CURLOPT_SSLVERSION => 6,
            CURLOPT_USERAGENT => "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1",
            CURLOPT_HTTPHEADER => [
                "accept: application/json",
                "authorization: Bearer sk_test_899d59b2451eecfa9392c64a7c8f32b661f66659",
                "cache-control: no-cache"
            ],
        ));

        $response = curl_exec($curl);
        $err = curl_error($curl);

        if($err){
            // there was an error contacting the Paystack API
            return redirect('billing')->with('status', 'There was an error connecting to Paystack API. Please try again');
        }

        $tranx = json_decode($response);

//        echo "<pre>";
//        print_r ($tranx);
//        echo "</pre>"; exit;

        if(!$tranx->status){
            // there was an error from the API
            return redirect('billing')->with('status', 'There was an error from Paystack API. Please try again');
        }

        if('success' == $tranx->data->status){
            // transaction was successful...
            $userId = Auth::user()->id;
            $userdetails = User::find($userId);
            // please check other things like whether you already gave value for this ref

            // if the email matches the customer who owns the product etc
            if($userdetails->email == $tranx->data->customer->email){
                // Give value
                $transaction = new Pay_transaction;
                $web_payment = new Web_payment;

                $amountPaid = $tranx->data->amount / 100;
                if($amountPaid == 7500){
                    $userdetails->userType = "professional";
                    $userdetails->status = 1;

                    $web_payment->trxnid = "PRO".$userId.str_random(5).str_random(5).str_random(3);
                    $web_payment->details = "Payment for Professional Plan (Paystack)";

                    $transaction->transdesc = "Payment for Professional Plan (Paystack)";
                    $transaction->payid = $web_payment->trxnid;

                }elseif($amountPaid == 30000){
                    $userdetails->userType = "advance";
                    $userdetails->status = 1;

                    $web_payment->trxnid = "ADV".$userId.str_random(5).str_random(5).str_random(3);
                    $web_payment->details = "Payment for Advance Plan (Paystack)";

                    $transaction->transdesc = "Payment for Advance Plan (Paystack)";
                    $transaction->payid = $web_payment->trxnid;
                }

                $transaction->ownerid = $userId;
                $transaction->amount = $amountPaid;

                $web_payment->userid = $userId;
                $web_payment->amount = $amountPaid;

                $userdetails->paid_date = date("Y-m-d h:i:s");

                $userdetails->save();
                $transaction->save();
                $web_payment->save();
                return redirect('billing')->with('status', 'Your payment was successful, your subscription has a validity period of 30days ');
            }else{
                return redirect('billing')->with('status', 'Your payment was not completed, please contact the admin.');
            }

        }
    }
    
    
    //Routes
    Route::post('/pay', 'PaymentController@redirectToGateway')->name('pay'); // Laravel 5.1.17 and above
    Route::get('/payment/callback', 'PaymentController@handlePayStackCallback'); //Paystack