Setting list.metaobject_reference values in GraphQL

GraphQL Admin API Troubleshooting
1

Hello,

I am trying to set a customer metafield that is a list.metaobject_reference type.

mutation MetafieldsSet($metafields: [MetafieldsSetInput!]!) {
  metafieldsSet(metafields: $metafields) {
    metafields {
      key
      namespace
      value
    }
    userErrors {
      field
      message
      code
    }
  }
}

Variables

{
    "metafields": [
        {
            "key": "kids",
            "namespace": "custom",
            "ownerId": "gid://shopify/Customer/8643416850748",
            "value": "gid://shopify/Metaobject/201936896317"
        		
        }
    ]
}

When I set the value to the string “gid://shopify/Metaobject/201936896317”, I get the error “Value is invalid JSON: unexpected character: ‘gid://shopify/Metaobject/2019368’” which is normal since the metafield type is a list of values.

When I set it as an array or json like this

"value": [
    "gid://shopify/Metaobject/201936896317"
]

I get this error: Could not coerce value [“gid:\/\/shopify\/Metaobject\/201936896314”] to String.

So when I pass a string, it wants a JSON, and when I pass a JSON, it wants a sting.

Any help would be appreciated.

2

I found the solution, hope this will help someone.

"value": "[\"gid://shopify/Metaobject/201936896314\", \"gid://shopify/Metaobject/201947119930\"]"
3

Thanks for sharing that @fxchain !