I am trying to integrate the DHL eCommerce API with my Laravel. I have tried to crack the WordPress WooCommerce code and felt it is a waste of time. With my continuous effort, I cracked the code of OpenCart and got the code to create a shipment draft.But actually, I want to create the shipment label through APIs, but OpenCart does not provide this feature, and WooCommerce has it. Could anyone help me?

Available documentation of DHL API integration Manual_WooCommerce_plug-in_EN.pdf

Just to be clear,

1. We already have an admin panel for our ecommerce website made with Laravel. So, I don’t need another admin panel made with WordPress.
2. The first option, If anyone can provide code for laravel without WordPress, it will be great.
3. Second option, I am looking to, I can insert the data of orders to WordPress database and call the DHL label create function from my Laravel code, and after creating the label, I will empty the entries I inserted into the database to save memory. This is a stupid option if nothing works due to the lack of documentation available online. Because I am not a WordPress expert, could anyone help me?

Cracked sample code from opencart below, and please help me to create CreateShipmentLabel function

<?php

class ControllerExtensionShippingDhlparcel
{
    private $db;
    private $url = "https://connector.dhlparcel.nl/api/V2/webhook/.............";
    public function __construct()
    {
        $this->db = new mysqli('localhost', 'root', '', 'opencart');
    }

    public function webhook($orderStatusId = 2)
    {
        $order = $this->getOrder(1);
        $data_string = json_encode($order);
        $ch = curl_init($this->url);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt( $ch,CURLOPT_HTTPHEADER,
            [
                'Content-Type: application/json',
                'Content-Length: ' . strlen($data_string),
                'dhlparcel-connector: opencart',
            ]
        );
        curl_exec($ch);
    }

    public function getOrder(int $order_id): array
    {
       return $shipment_data;
    }

    public function CreateShipmentLabel(){
        // please help me create this function
    }
}

$model = new ControllerExtensionShippingDhlparcel();
$model->webhook();