cd app/ThirdParty

git clone https://github.com/wildanfuady/WFcart.git

$psr4 = [
	'App'         => APPPATH,                // To ensure filters, etc still found,
	APP_NAMESPACE => APPPATH,                // For custom namespace
	'Config'      => APPPATH . 'Config'
];

$psr4 = [
	'App'         => APPPATH,                // To ensure filters, etc still found,
	APP_NAMESPACE => APPPATH,                // For custom namespace
	'Config'      => APPPATH . 'Config',
	'Wildanfuady' => APPPATH . 'ThirdParty/WFcart/Wildanfuady'
];

use Wildanfuady\WFcart\WFcart;

class Cart extends BaseController
{
    // code
}

public function __construct() {

	$this->cart = new WFcart();

}

$this->cart->totals();

$this->cart->count_totals();

$id = 1; // ambil dari kode product
$item = [
	'id'		=> $id,
	'name'		=> 'Product 1,
	'price'		=> 1000,
	'photo'		=> 'product1.jpg',
	'quantity'	=> 1
];
$this->cart->add_cart($id, $item);

$this->cart->remove($id);

$this->cart->update();