Add images to the gallery attribute
mutation {
productAddAttributeValueTranslationsGallery(
input: {
sku: "1"
attributeCode: "gallery"
translations: [
{ language: "pl_PL", value: ["1.jpg", "2.jpg", "3.jpg"] }
]
}
) {
__typename
}
}
Attribute Gallery and Product identified with SKU must already exist.
value: is the path to an image, you can get it with query "multimediaStream"