Magento 2.1 REST API adding simple product with attribute set results in bad request reponse

Question

I have configurable product added, sku KudosConfig. I have added an attributes called kudos_size and kudos_colour which have values of Small, Medium, Large and Green, Pink, Orange respectively. The next step, I thought, was to add the 9 simple products with appropriate attribute value set for both kudos_size and kudos_colour. To do this I am using the following request:

 PUT https://example.com/rest/V1/products/KudosConfigGreenSmall

The body of the request is:

{
 "product":{
 "sku":"KudosConfigGreenSmall ",
 "name":"Kudos Configurable Green Small",
 "price":30.00,
 "status":0,
 "type_id":"simple",
 "attribute_set_id":4,
 "weight":1,
 "custom_attributes":[
 {
 "attribute_code":"kudos_colour",
 "value":"Green"
 },
 {
 "attribute_code":"kudos_size",
 "value":"Small"
 }
 ]
 }

This however returns a http 400 bad request response with message:

Error occurred during "custom_attributes" processing. Attribute "kudos_colour" has invalid value. Invalid type for value: "Green". Expected Type: "int".

I don't understand why it is expecting an integer, all the values in the setup are strings.

Answer 1

I think I understand now. Instead of passing the actual value you need to pass in the value id which you can get from the catalogProductAttributeOptionManagementV1 service. Have tried this and now working.