VueJs + CI 4

I'm building a simple example to include vuejs in codeigniter.
I hoped to finish today, and share it within the CI forum

But... Im stuck now for 3 hours with posting an object to the CI 4 controller

The routes, (get is already working )

PHP Code:

$routes->post('products', 'Product::create');
//id or 'all'
$routes->get('products/(:any)', 'Product::read/$1');
$routes->put('products/(:num)', 'Product::update/$1');
$routes->delete('products/(:num)', 'Product::delete/$1'); 


The controller, to create an item , from vue with axios (POST)

PHP Code:

public function create()
{    
    $model = new ProductsModel();
    $created = $model->save([
        'title' => $this->request->getVar('title'),
        'description'  => $this->request->getVar('description')
    ]);
    $success = array("success");
    return $this->respond($success, 200);
} 


A snippet of Vue 

PHP Code:

axios({
headers: {
'Content-Type': 'application/json',
},
responseType: 'json',
method: 'post',
url: url,
data: {title:'testing title',decription:'testing desc, 


It tried 'application/x-www-form-urlencoded' as wel for the content-type

Sending the title or description from postman is working, so I tried to set the axios headers to multipart/form-data, but with no luck.

PHP Code:

POST /products/all HTTP/1.1
Host: vue-ci4.test
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
Cache-Control: no-cache
Postman-Token: XXXXXXX-XXXX-XXX-XXXX-XXXXXXXXX

------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="title"

this is a test
------WebKitFormBoundary7MA4YWxkTrZu0gW-- 


In CI 3 i had the same problem, and fixed it with:
$_POST = json_decode(file_get_contents("php://input") , true);

I hope to wrap this thing up, with your help