There is a special params request in Menus which is products.
An example to use this param is:
http://apiv4.ordering.co/v400/en/demo/business/41/menus?params=products
[
{
"id": 45,
"products": [
{
"id": 1292,
"name": "Bird's Nest",
"price": 3,
"description": "",
"images": "https://res.cloudinary.com/ordering2/image/upload/v1523299637/dfqe6rjkdbqvjaibrwn2.jpg",
"sku": null,
"category_id": 248,
"inventoried": false,
"quantity": 0,
"featured": false,
"enabled": true,
"pivot": {
"menu_id": 45,
"product_id": 1292
}
},
...
]
},
... // if findAll
]