Magento2 REST Update custom attributes

Question

How can I update the custom attributes such as description? The following code properly update price and product name, but not custom attributes (unchanged). The new product is created properly with custom attributes, the problem is while updating.

Answer 1

To create product, we can use:

• POST: /V1/products

For updating:

• PUT: /V1/products/{sku}

In your case, your code should be:

$productData = [
        'attribute_set_id'  => 4,
        "type_id": "simple",
        "sku": "test-SKU",
        "name": "Test",
        "price": 100,
        "status": 1,
        'custom_attributes' => [
                ['attribute_code' => 'description', 'value' => 'Test Description' ],
                ['attribute_code' => 'short_description', 'value' => 'Test Short Description' ],
            ]
    ];

The JSON body:

 {
  "product": {
    "sku": "test-SKU",
    "name": "Test",
    "attribute_set_id": 4,
    "price": 100,
    "status": 1,
    "custom_attributes": [
      {
        "attribute_code": "description",
        "value": "Test Description"
      },
      {
        "attribute_code": "short_description",
        "value": "Test Short Description"
      }
    ]
  }
}

There is an answer here: https://magento.stackexchange.com/a/135607/33057

Answer 2

Try to pass your custom attributes within array like:

'custom_attributes' => array(
     '0' => array(
          'attribute_code' => 'my_custom_attribute_code',
          'value' => 'my_custom_attribute_value'
      )
      ...
)