Step 3. Create the simple products

The payloads for creating a simple product and a configurable product are identical, with the following exceptions:

The simple product sku appends the configurable option (the size in this tutorial) to the configurable product sku.
The name indicates the size.
The type_id is set to simple.
The visibility is set to 1, indicating the simple product should not be displayed on the store.
The price and size attributes are specified.

Although it's not required, the simple product payload also includes stock_item information. By default, the Luma store hides out-of-stock items, so adding stock will make the Champ Tee visible on the website.

Create the first simple product

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Before using this code sample, verify that the attribute values are the same in your installation. See Get the list of attributes defined in an attribute searchCriteria for more information.

Endpoint:

POST <host>/rest/default/V1/products

Payload:

{
  "product": {
    "sku": "MS-Champ-S",
    "name": "Champ Tee Small",
    "attribute_set_id": 9,
    "price": 25,
    "status": 1,
    "visibility": 1,
    "type_id": "simple",
    "weight": "0.5",
    "extension_attributes": {
        "category_links": [
            {
                "position": 0,
                "category_id": "11"
            },
            {
                "position": 1,
                "category_id": "12"
            },
            {
                "position": 2,
                "category_id": "16"
            }
        ],
        "stock_item": {
            "qty": "10",
            "is_in_stock": true
        }
    },
    "custom_attributes": [
        {
            "attribute_code": "description",
            "value": "The Champ Tee keeps you cool and dry while you do your thing. Let everyone know who you are by adding your name on the back for only $10."
        },
        {
            "attribute_code": "tax_class_id",
            "value": "2"
        },
        {
            "attribute_code": "material",
            "value": "148"
        },
        {
            "attribute_code": "pattern",
            "value": "196"
        },
        {
            "attribute_code": "color",
            "value": "52"
        },
        {
            "attribute_code": "size",
            "value": "168"
        }
    ]
  }
}

Response:

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data-summary=Show code sample

{
    "id": 2079,
    "sku": "MS-Champ-S",
    "name": "Champ Tee Small",
    "attribute_set_id": 9,
    "price": 25,
    "status": 1,
    "visibility": 1,
    "type_id": "simple",
    "created_at": "2017-11-29 20:40:07",
    "updated_at": "2017-11-29 20:40:07",
    "weight": 0.5,
    "extension_attributes": {
        "website_ids": [
            1
        ],
        "category_links": [
            {
                "position": 0,
                "category_id": "11"
            },
            {
                "position": 1,
                "category_id": "12"
            },
            {
                "position": 2,
                "category_id": "16"
            }
        ],
        "stock_item": {
            "item_id": 2079,
            "product_id": 2079,
            "stock_id": 1,
            "qty": 10,
            "is_in_stock": true,
            "is_qty_decimal": false,
            "show_default_notification_message": false,
            "use_config_min_qty": true,
            "min_qty": 0,
            "use_config_min_sale_qty": 1,
            "min_sale_qty": 1,
            "use_config_max_sale_qty": true,
            "max_sale_qty": 10000,
            "use_config_backorders": true,
            "backorders": 0,
            "use_config_notify_stock_qty": true,
            "notify_stock_qty": 1,
            "use_config_qty_increments": true,
            "qty_increments": 0,
            "use_config_enable_qty_inc": true,
            "enable_qty_increments": false,
            "use_config_manage_stock": true,
            "manage_stock": true,
            "low_stock_date": null,
            "is_decimal_divided": false,
            "stock_status_changed_auto": 0
        }
    },
    "product_links": [],
    "options": [],
    "media_gallery_entries": [],
    "tier_prices": [],
    "custom_attributes": [
        {
            "attribute_code": "description",
            "value": "The Champ Tee keeps you cool and dry while you do your thing. Let everyone know who you are by adding your name on the back for only $10."
        },
        {
            "attribute_code": "color",
            "value": "52"
        },
        {
            "attribute_code": "category_ids",
            "value": [
                "11",
                "12",
                "16"
            ]
        },
        {
            "attribute_code": "options_container",
            "value": "container2"
        },
        {
            "attribute_code": "required_options",
            "value": "0"
        },
        {
            "attribute_code": "has_options",
            "value": "0"
        },
        {
            "attribute_code": "url_key",
            "value": "champ-tee-small"
        },
        {
            "attribute_code": "tax_class_id",
            "value": "2"
        },
        {
            "attribute_code": "material",
            "value": "148"
        },
        {
            "attribute_code": "size",
            "value": "168"
        },
        {
            "attribute_code": "pattern",
            "value": "196"
        }
    ]
}