'providers' => [
    /*
     * Package Service Providers...
     */
    ...
    KingFlamez\Rave\RaveServiceProvider::class,
    ...
]

'aliases' => [
    ...
    'Rave' => KingFlamez\Rave\Facades\Rave::class,
    ...
]

RAVE_PUBLIC_KEY=FLWPUBK-xxxxxxxxxxxxxxxxxxxxx-X
RAVE_SECRET_KEY=FLWSECK-xxxxxxxxxxxxxxxxxxxxx-X
RAVE_TITLE="ABC Company"
RAVE_ENVIRONMENT="staging"
RAVE_LOGO="https://pbs.twimg.com/profile_images/915859962554929153/jnVxGxVj.jpg"
RAVE_PREFIX="rave"

Route::post('/pay', 'RaveController@initialize')->name('pay');
Route::post('/rave/callback', 'RaveController@callback')->name('callback');

protected $except = [
    'rave/callback'
];

<?php
namespace App\Http\Controllers;

use Illuminate\Http\Request;

//use the Rave Facade
use Rave;

class RaveController extends Controller
{

    /**
     * Initialize Rave payment process
     * @return void
     */
    public function initialize()
    {
        //This initializes payment and redirects to the payment gateway
        //The initialize method takes the parameter of the redirect URL
        Rave::initialize(route('callback'));

        /***
        *For more functionality you can use more methods like the one below
        *setKeys($publicKey, $secretKey) - This is used to set the puvlic and secret key incase you wat to use another one different from your .env
        *setEnvironment($env) - This is used to set to either staging or live incase you want to use something different from your .env
        *
        *setPrefix($prefix, $overrideRefWithPrefix=false) - 
        ***$prefix - To add prefix to your transaction reference eg. KC will lead to KC_hjdjghddhgd737
        ***$overrideRefWithPrefix - either true/false. True will override the autogenerate reference with $prefix/request()->ref while false will use the $prefix as your prefix
        **/

        //Rave::setKeys($publicKey, $secretKey)->setEnvironment($env)->setPrefix($prefix, $overrideRefWithPrefix=false)->initialize(route('callback'));

        //eg: Rave::setEnvironment('live')->setPrefix("flamez")->initialize(route('callback'));
        //eg: Rave::setKeys("PWHNNJ992838uhzjhjshud", "PWHNNJ992838uhzjhjshud")->setPrefix(request()->ref, true)->initialize(route('callback'));
        //eg: Rave::setKeys("PWHNNJ992838uhzjhjshud, "PWHNNJ992838uhzjhjshud")->setEnvironment('staging')->setPrefix("rave", false)->initialize(route('callback'));
    }

    /**
     * Obtain Rave callback information
     * @return void
     */
    public function callback()
    {
        if(request()->cancelled && request()->txref){
            //Handles Request if its cancelled
            //Payment might have been made before cancellation
            //This verifies if it's paid or not
            $data = Rave::requeryTransaction(request()->txref)->paymentCanceled(request()->txref);
        }elseif(request()->txref){
            // Handle completed payments  
            $data = Rave::requeryTransaction(request()->txref);
        }else{
            echo 'Stop!!! Please pass the txref parameter!';
        }

        dd($data);
        // Get the transaction from your DB using the transaction reference (txref)
        // Check if you have previously given value for the transaction. If you have, redirect to your successpage else, continue
        // Comfirm that the transaction is successful
        // Confirm that the chargecode is 00 or 0
        // Confirm that the currency on your db transaction is equal to the returned currency
        // Confirm that the db transaction amount is equal to the returned amount
        // Update the db transaction record (includeing parameters that didn't exist before the transaction is completed. for audit purpose)
        // Give value for the transaction
        // Update the transaction to note that you have given value for the transaction
        // You can also redirect to your success page from here
        
    }
}

<?php
namespace App\Http\Controllers;

use Illuminate\Http\Request;

//use the Rave Facade
use Rave;
//use the Class that implemented the RaveEventHandlerInterface, we will create this next
use App\Events\PaymentEventHandler;

class RaveController extends Controller
{

    /**
     * Initialize Rave payment process
     * @return void
     */
    public function initialize()
    {
        //This initializes payment and redirects to the payment gateway
        //The initialize method takes the parameter of the redirect URL
        //Use the eventHandler method and pass a new instance of your class implementing RaveEventHandlerInterface in the parameter
        Rave::eventHandler(new PaymentEventHandler)->initialize(route('callback'));

        /***
        *For more functionality you can use more methods like the one below
        *setKeys($publicKey, $secretKey) - This is used to set the puvlic and secret key incase you wat to use another one different from your .env
        *setEnvironment($env) - This is used to set to either staging or live incase you want to use something different from your .env
        *
        *setPrefix($prefix, $overrideRefWithPrefix=false) - 
        ***$prefix - To add prefix to your transaction reference eg. KC will lead to KC_hjdjghddhgd737
        ***$overrideRefWithPrefix - either true/false. True will override the autogenerate reference with $prefix/request()->ref while false will use the $prefix as your prefix
        **/

        //Rave::eventHandler(new PaymentEventHandler)->setKeys($publicKey, $secretKey)->setEnvironment($env)->setPrefix($prefix, $overrideRefWithPrefix=false)->initialize(route('callback'));

        //eg: Rave::eventHandler(new PaymentEventHandler)->setEnvironment('live')->setPrefix("flamez")->initialize(route('callback'));
        //eg: Rave::eventHandler(new PaymentEventHandler)->setKeys("PWHNNJ992838uhzjhjshud", "PWHNNJ992838uhzjhjshud")->setPrefix(request()->ref, true)->initialize(route('callback'));
        //eg: Rave::eventHandler(new PaymentEventHandler)->setKeys("PWHNNJ992838uhzjhjshud, "PWHNNJ992838uhzjhjshud")->setEnvironment('staging')->setPrefix("rave", false)->initialize(route('callback'));
    }

    /**
     * Obtain Rave callback information
     * @return void
     */
    public function callback()
    {
        //Use the eventHandler method and pass a new instance of your class implementing RaveEventHandlerInterface in the parameter
        if(request()->cancelled && request()->txref){
            // Handle canceled payments
            Rave::eventHandler(new PaymentEventHandler)
            ->requeryTransaction(request()->txref)
            ->paymentCanceled(request()->txref);
        }elseif(request()->txref){
            // Handle completed payments  
            Rave::eventHandler(new PaymentEventHandler)
            ->requeryTransaction(request()->txref);
        }else{
            echo 'Stop!!! Please pass the txref parameter!';
        }
    }
}

<?php

namespace App\Events;

//use the Rave Event Handler Interface
use KingFlamez\Rave\RaveEventHandlerInterface;

// This is where you set how you want to handle the transaction at different stages
// You can have multiple Event Handler for different purposes of payments

//This class should implement  the RaveEventHandlerInterface and take all the methods
class PaymentEventHandler implements RaveEventHandlerInterface{
    /**
     * This is called when the Rave class is initialized
     * */
    function onInit($initializationData){
        // Save the transaction to your DB.
        echo 'Payment started......'.json_encode($initializationData).'<br />'; //Remember to delete this line
    }
    
    /**
     * This is called only when a transaction is successful
     * */
    function onSuccessful($transactionData){
        // Get the transaction from your DB using the transaction reference (txref)
        // Check if you have previously given value for the transaction. If you have, redirect to your successpage else, continue
        // Comfirm that the transaction is successful
        // Confirm that the chargecode is 00 or 0
        // Confirm that the currency on your db transaction is equal to the returned currency
        // Confirm that the db transaction amount is equal to the returned amount
        // Update the db transaction record (includeing parameters that didn't exist before the transaction is completed. for audit purpose)
        // Give value for the transaction
        // Update the transaction to note that you have given value for the transaction
        // You can also redirect to your success page from here
        echo 'Payment Successful!'.json_encode($transactionData).'<br />'; //Remember to delete this line
    }
    
    /**
     * This is called only when a transaction failed
     * */
    function onFailure($transactionData){
        // Get the transaction from your DB using the transaction reference (txref)
        // Update the db transaction record (includeing parameters that didn't exist before the transaction is completed. for audit purpose)
        // You can also redirect to your failure page from here
        echo 'Payment Failed!'.json_encode($transactionData).'<br />'; //Remember to delete this line
    }
    
    /**
     * This is called when a transaction is requeryed from the payment gateway
     * */
    function onRequery($transactionReference){
        // Do something, anything!
        echo 'Payment requeried......'.$transactionReference.'<br />'; //Remember to delete this line
    }
    
    /**
     * This is called a transaction requery returns with an error
     * */
    function onRequeryError($requeryResponse){
        // Do something, anything!
        echo 'An error occured while requeying the transaction...'.json_encode($requeryResponse).'<br />'; //Remember to delete this line
    }
    
    /**
     * This is called when a transaction is canceled by the user
     * */
    function onCancel($transactionReference){
        // Do something, anything!
        // Note: Somethings a payment can be successful, before a user clicks the cancel button so proceed with caution
        echo 'Payment canceled by user......'.$transactionReference.'<br />'; //Remember to delete this line
    }
    
    /**
     * This is called when a transaction doesn't return with a success or a failure response. This can be a timedout transaction on the Rave server or an abandoned transaction by the customer.
     * */
    function onTimeout($transactionReference, $data){
        // Get the transaction from your DB using the transaction reference (txref)
        // Queue it for requery. Preferably using a queue system. The requery should be about 15 minutes after.
        // Ask the customer to contact your support and you should escalate this issue to the flutterwave support team. Send this as an email and as a notification on the page. just incase the page timesout or disconnects
        echo 'Payment timeout......'.$transactionReference.' - '.json_encode($data).'<br />'; //Remember to delete this line
    }
}