Magento 2 REST API: Change product category

[CSRABC]

Hi all,

I'm looking for a way to change Product Category using REST API.

I've created my product "NewShoes" sending this JSON (products/{sku} PUT with sku parameter as "NewShoes"):

{"product":{"extensionAttributes":{"category_links":[{"position":0,"category_id":"2"}]},"sku":"NewShoes","name":"New Pair of Shoes","price":10,"type_id":"simple","status":1,"attribute_set_id":4}}

I've specified product category as "2". The product creates OK.

Now I want to change product category from "2" to "3".

If I send this JSON (products/{sku} PUT with {sku} parameter as "NewShoes"):

{"product":{"extensionAttributes":{"category_links":[{"position":0,"category_id":"3"}]}}}

To Change the product category, the Magento 2 API doesn't change category to "3". What it does is put categories to ["2", "3"].

Is there anyway to change product category using REST API??

I'm using Magento 2.2.4.

Anyone can help me??

Thanks all!!

[Manthan Dave]

Hi @CSRABC

Well AKAIK - you need to pass this categories id into custom attributes instead of extensions attributes !

Below i am sharing the exact parameter of products : 

 $productData = array(
        'sku'               => 'TESTING' . uniqid(),
        'name'              => 'Simple Product ' . uniqid(),
        'visibility'        => 4, /*'catalog',*/
        'type_id'           => 'simple',
        'price'             => 99.95,
        'status'            => 1,
        'attribute_set_id'  => 4,
        'weight'            => 1,
        'custom_attributes' => array(
            array( 'attribute_code' => 'category_ids', 'value' => ["42","41","32"] ),
            array( 'attribute_code' => 'description', 'value' => 'Simple Description' ),
            array( 'attribute_code' => 'short_description', 'value' => 'Simple  Short Description' ),
            )
    );

I have taken this in variable so its required to convert into json format which you have already did and then try !

it will works ! 

[CSRABC]

Thanks @Manthan Dave but it doesn't work. If I specify category in custom_attributes as you mentioned, it doesn't select any category for my product... : (((((

[Manthan Dave]

Hi @CSRABC

ok - i understand !

Can you please post exact touch points and parameters you are passing ?

Like below : 

URL : ???

Method name : ???

Parameters : 

So its helps me to troubleshoot the issue !

[CSRABC]

Hi @Manthan Dave,

I can't post the URL because it's a local Magento installation for testing.

The metod is on catalogProductRepositoryV1:

/rest/V1/products/{sku} (PUT)

I pass as parameter the SKU and the json is the one I mentioned above.

If you pass the categories as custom_attributes the method doesn't create them...

If you pass the categories as extension_attributes the method creates them...

Thanks : )

[Manthan Dave]

Hi @CSRABC

ok - seems like you are correct we need to use custom_attributes for categories !

I have tried in postman app with below details and able to change categories in the products for the same !

Below is the exact details :

API URL : http://mywebsitedomainurl/index.php/rest/V1/products/24-MB01/

Method : PUT

Parameters : 

{  
   "product":{  
      "extensionAttributes":{  
         "category_links":[  
            {  
               "position":0,
               "category_id":"11" // here i have one category called MEN and its id is 11 - so i am assigning 11 category in this product
            }
         ]
      },
      "sku":"24-MB01",
      "name":"Joust Duffle Bags",
      "price":10,
      "type_id":"simple",
      "status":1,
      "attribute_set_id":4
   }
}

here my product sku is : 24-MB01

previously 24-MB01 sku have only 2 categories assign - now i have use above methods and parameters and assign 3rd categories for the same.

I have tested it in postman and its working at my end

Hope it helps !

[CSRABC]

Hi @Manthan Dave,

as I understand, you previously had 2 categories assigned to the sku "24-MB01" and with this PUT have specified one category. What this PUT have done is to add 11 as third category for this SKU, isn't it??

If this is so, I think this is a bug, and can crashes several things like catalog rules (imagine you have a rule for one previous category and a rule for the new one. Which rule will Magento apply?)...

I keep trying to find a solution...

Thanks!

[Manthan Dave]

Hi

okay i understand !!

so previously i have 3 categories assign to this product ..

now i have added 4th categories which id is 11 ..

so here you would like to change existing category ?

meaning existing category needs to be removed and new category needs to be replaced with older one ? is it what you want ? or help me to understand more on this

[CSRABC]

HI @Manthan Dave,

what I really think Magento should do es:

- Previously I have two Magento categories in a SKU. For example Categories A & B.

- With a PUT request to this SKU I specify two categories: C & D.

I think this SKU now should have categories C & D, replacing the A & B categories. What Magento does is leving the SKU with categories A, B, C & D... 

[leonardo_pinhei]

I do not know if an answer is still valid due to the time it was posted.
But I had the same problem and I found your topic today, I just did a test.
In addition to putting the category in extension_attributes I also put it in custom_attributes, in the tests I performed it will always keep what you put in extension_attributes, as long as it also places in custom_attributes, I do not know if this is a bug, but it works.

PT-BR:
Não sei se uma resposta ainda é valida devido ao tempo que foi postada.
Mas tive o mesmo problema e encontrei seu tópico hoje, acabei de fazer um teste.
Além de colocar a categoria em extension_attributes também coloquei em custom_attributes, nos testes que realizei ele sempre vai manter o que você colocar em extension_attributes, desde que coloque também em custom_attributes, não sei se isso é um bug, mas funciona.

{
  "product": {
    "sku": "00004244",
    "extension_attributes": {
    	"category_links": [
    		{
    			"position": 0,
    			"category_id": "2"
    		},
    		{
    			"position": 1,
    			"category_id": "42"
    		},
    		{
    			"position": 2,
    			"category_id": "52"
    		},
    		{
    			"position": 3,
    			"category_id": "56"
    		}
    	]
    },
    "custom_attributes": [
    	{
    		"attribute_code": "category_ids",
    		"value": "[]"
    	}
    ]
  }
}

In this example, the categories that I put in category_links always override, taking the category_ids from custom_attributes and then "adding" the category

PT-BR:
Nesse exemplo as categorias que eu coloco em category_links sempre sobrescrevem, tirando o category_ids do custom_attributes ele passa a "adicionar" a categoria

Sorry for the bad english