Product Images ID are null when using productCreate / createProductMedia mutation

[crowdlinker]

Hey folks,

I am trying to get IDs of all the images when I create products OR using createProductMedia mutations via GraphQL Admin API. In both cases, I am getting `null` values in the query response. I thought it might not work with productCreate mutation so I tried createProductMedia as per docs here in which the example query has `id` set in image field to return.

Broadly, I want to store these references of images in my database so that upon product update, I can delete them and create new images OR update images. Both cases I mentioned require image ids and I want to avoid the additional query to do a lookup of images by product ID. In a nutshell, if the product already exists in Store (I have reference to the product in my DB) I want to update the product data and efficiently update all the images. In order to do this, I want to store the image IDs in my database so, upon the next update, I can delete them and add new ones.

Query:

mutation createProductMedia($id: ID!, $media: [CreateMediaInput!]!) {
  productCreateMedia(productId: $id, media: $media) {
    media {
      ...fieldsForMediaTypes
      mediaErrors {
        code
        details
        message
      }
    }
    product {
      id
    }
    mediaUserErrors {
      code
      field
      message
    }
  }
}

fragment fieldsForMediaTypes on Media {
  alt
  mediaContentType
  preview {
    image {
      id                  // This always returns null or is empty
      originalSrc
    }
  }
  status
}

 Variables: 

{
  "id": "gid://shopify/Product/6592068878536",
  "media": [
    {
      "originalSource": "https://dummyimage.com/150x200/6f00a3/ffffff.jpg&text=Placeholder",
      "alt": "Lets try this baby",
      "mediaContentType": "IMAGE"
    }
  ]
}

[VivekH]

Hey @crowdlinker 

Here's a mutation I use to get Media Id from ProductCreate mutation

mutation productCreate($input: ProductInput!, $media: [CreateMediaInput!]) {
                          productCreate(input: $input, media: $media) {
                            product {
                              id
                              handle
                              media(first:25) {
                                edges {
                                  node {
                                    ... on ExternalVideo {
                                      id
                                      alt
                                    }
                                    ... on MediaImage {
                                      id
                                      alt
                                    }
                                  }
                                }
                              }
                            }
                            userErrors {
                              field
                              message
                            }
                          }
                        }

Variables -

{
                "input": {
                    "handle": "shopify-product-1",
                    "title": "shopify product title"
                },
                "media": [
                    {
                        "alt": "shopify product 1 image",
                        "mediaContentType": "IMAGE",
                        "originalSource": "image url 1"
                    }
                ]
}

This should return you id for media

[SethT]

The problem with this solution is that it returns a MediaImage id and not a ProductImage id. The MediaImage id can't be used to delete images from a product.

[SethT]

Turns out it can if you use the productDeleteMedia mutation.