How to fix an invalid id error when updating products using graphql?

Technical Q&A
1

Hi,

I’m trying to update products using the graphql endpoint,

It is working as expected in the Grphiql App, but not in my node app.

Here is the query :

mutation productUpdate ($input1: ProductInput!) {
    productUpdate (input: $input1) {
        product {
            id
            handle
            metafield(key: "front", namespace: "linked_products") {
                id
            }
        }
        userErrors {
            field
            message
        }
    }
}

& the input :

{
  "input":{
    "id":"gid://shopify/Product/65522031xxxxxxx"
  }
}

The error message I’m getting is :

Error: [{"message":"invalid id","locations":[{"line":3,"column":21}],"path":["productUpdate"]}] {stack: 'Error: [{"message":"invalid id","locations":[line":3,"column":21}],"path":["productUpdate"]}]', message: '[{"message":"invalid id","locations":[{"line":3,"column":21}],"path":["productUpdate"]}]'}

This has really taken so much debug time, really obscure !

2

Solved.

The GID of a product variant should be : productVariant & not Variant