Prestashop Custom Webservice

Good morning, I am developing a module that will make use of the webservices functionality of Prestashop 1.6.

In my case I try to send data from one store to another with a custom web service, that is, I have created a webservice of my own, activated the methods that interest me, but when implementing the CRUD functions, I am a bit lost .

I would like to know how URLs are interpreted by passing parameters to, for example, consult an item by ID, delete an item by ID or create a new one. Yes, using the way to implement as done here: link

Edit: I put here the explanation and the code. The data to recover and record is recovered / saved in a new table that I have registered.

This is the class that extends the webservice request core to implement my own webservice

class WebserviceRequest extends WebserviceRequestCore
{
    public function __construct()          
    {
        include_once(_PS_MODULE_DIR_.'directorioModulo'.DIRECTORY_SEPARATOR.'models'.DIRECTORY_SEPARATOR.'ClaseParaImplementarModuloCustom.php');
    }
}

This ClassForImplementModuleCustom.php is where all the Webservice logic should be done. (I understand the CRUD functions)

class CentralizedStoreAssociated extends ObjectModel
{
    //Campos de la clase
    public $id;
    public $store_name;
    public $store_url;
    public $store_api_key;
    public $store_contact_email;

    //Definición de la clase/objeto
    public static $definition = [
        'table'     => 'centralized_stores',
        'primary'   => 'id_centralizedstore',
        'multilang' => false,
        'multilang_shop' => false,
        'fields' => array(
            'store_id' => ['type' => self::TYPE_INT, 'validate' => 'isInt', 'size' => 256],
        ),
    ];
}

//Definición de los parámetros del servicio web. Aquí es donde entiendo que deben definirse las funciones para el CRUD en associations.
protected $webserviceParameters = [
        'objectNodeName' => 'store',
        'objectsNodeName' =>'centralized_stores',
        'associations' => [
            'storeDetails' => array('getter' => 'getStoreDetails',     'resource' => 'storeDetails',
            'fields' => array(
                'store_name'            => ['type' => self::TYPE_STRING, 'validate' => 'isString', 'size' => 256],
                'store_url'             => ['type' => self::TYPE_STRING, 'validate' => 'isUrl', 'size' => 2038],
                'store_api_key'         => ['type' => self::TYPE_STRING, 'validate' => 'isString', 'size' => 32],
                'store_contact_email'   => ['type' => self::TYPE_STRING, 'validate' => 'isEmail', 'size' => 254],
            ),
        ),
    ]
];

Finally I have defined a function for the getter = > getStoreDetails that is nothing more than a function to obtain the data of a store from the custom table, by means of the URL link

I hope I have made everything clearer.