Having issues to add item to order with customFields

[superchinois]

Hello, I would like to use the graphql mutation addItemToOrder with the additional parameters customFields. I didn't succeed so far. I installed a simple app with @vendure/create my-app (version 1.4.6).
I added the following customFields in the src/vendure-config.js

customFields: {
        Product: [
            {
              name: 'isWeighted',
              type: 'boolean',
              defaultValue: false,
              nullable: false,
            },
        ],
        OrderLine: [
            {
              name: 'orderLineWeight',
              type: 'float',
              label: [
                {
                  languageCode: LanguageCode.en,
                  value: 'the weight in kilogram' 
                },
              ],
            },
        ]
    }

and here my graphql query :

{
operationName: "addWeightedItem", 
variables: {productVariantId, quantity, customFields},
query:`mutation addWeightedItem($productVariantId:ID!, $quantity: Int!, $customFields:JSON){
    addItemToOrder(productVariantId: $productVariantId, quantity: $quantity, customFields: $customFields) 
    {__typename
    ... on Order {id lines{id unitPrice}}
    }
}`

i got a 400 error and cannot find out where I am wrong
Thank you in advance for your help

[michaelbromley]

Hi!

$customFields:JSON

This part might be the issue. When you have defined custom fields on OrderLine, the schema gets updated so that the customFields input argument should have the type OrderLineCustomFieldsInput

[superchinois]

Thanks for the quick response. You rock !