Magento REST API Post Product and Category without “Sorting” parameter


I need to POST products with their category number, but without their sorting because I dont want to change the sorting via API.

{"product": {     "id": 1234,     "sku": "2345",     "name": "Nice Product",     "extension_attributes": {         "website_ids": [1],         "category_links": [{             "position": 11,             "category_id": "123"         }]     }} } 

As soon as I take our the sorting I get an error.