How to get custom product attributes values using graphQl queries in magento 2.3?

Question

I want to get the values for custom product attribute in product details page. I am using below GrapgQl query to get the values. i am passing the name as the argument. How can i get the products attributes.

{
products(filter:{name: {eq: "Joust Duffle Bag"}}
                    ){
items{
  id
  sku
  special_price
  description{ html}
  short_description{ html}
  meta_title
  meta_keyword
  meta_description
  options_container
  type_id
  image{ url label }
  small_image{ url label }
  thumbnail{ url label }
  price{  
    regularPrice{
      amount{ 
        value
        currency
      }
    }
  }
}
}
}

Answer 1

For product attributes to be available in GraphQL, is_user_defined has to be true AND at least one of the following:

• is_comparable
• is_filterable
• is_filterable_in_search
• is_visible_on_front
• used_in_product_listing
• used_for_sort_by

Reference: \Magento\CatalogGraphQl\Model\Resolver\Products\Attributes\Collection::getAttributes()

---

Additionally, if the attributes should be filterable as well, at least one of the following must be true:

• (Attribute is searchable AND visible_in_advanced_search)
• attribute is "Used in Layered Navigation" (is_filterable)

And if the type is "Select", it must have options.

Reference: \Magento\CatalogGraphQl\Model\Config\FilterAttributeReader::getFilterAttributes()

Answer 2

After some searches we dont need any special query methods to retriew custom attributes. We can just pass the custom attribute code to the query.

EX - our custom attribute code is publisher just pass it in the query.

{
products(filter:{name: {eq: "Joust Duffle Bag"}}
                ){
items{
id
sku
publisher
price{  
regularPrice{
  amount{ 
    value
    currency
  }
}
}
}
}
}

to get the custom attribute values and label if it was the multiple select or select type refer How to get product attribute value, label using GraphQl in Magento 2.3?