adds or updates a product with attributes, options and combinations.

{
    "jsonapi": {
        "version": "string"
    },
    "data": {
        "type": "string",
        "id": "string",
        "attributes": {
            "meta": {
                "type": "string",
                "id": "string",
                "attributes": {
                    "characteristics": null,
                    "info": null,
                    "shipping_packing_info": null,
                    "product_number": null,
                    "product_type": "string",
                    "fix_price": null,
                    "seo_url": null,
                    "canonical_url": null,
                    "browser_title": null,
                    "meta_key_words": null,
                    "meta_description": null,
                    "production_period": null,
                    "number_of_pages": null,
                    "icons": [
                        "string"
                    ],
                    "images": [
                        "string"
                    ],
                    "uploads": [
                        "string"
                    ]
                }
            },
            "key": "string",
            "status": 0,
            "isClosedShop": true,
            "hasExternalPrice": true,
            "name": "string",
            "description": null,
            "serviceprovider": "string",
            "custom_format": {
                "type": "string",
                "attributes": {
                    "min_width": null,
                    "max_width": null,
                    "min_height": null,
                    "max_height": null
                },
                "links": {
                    "self": "string"
                }
            },
            "loose_leaf_data": {
                "type": "string",
                "attributes": {
                    "min_pages": null,
                    "max_pages": null,
                    "min_copies": null,
                    "max_copies": null,
                    "divisible_by": null,
                    "pages_default": null,
                    "copies_default": null,
                    "hide_pages": true,
                    "hide_copies": true,
                    "hide_color_pages": true
                },
                "links": {
                    "self": "string"
                }
            },
            "categoryId": "string",
            "has_sets": true
        },
        "links": {
            "self": "string"
        }
    }
}