Must I provide ProductId to query product details with Google play in-app purchase system in Android Studio?

Question

I know I can use the following code to query in-app products detail by providing ProductId.

At present, I hope to query all in-app products details, must I provide all ProductId ?

 fun queryProductDetails() {
        val params = QueryProductDetailsParams.newBuilder()
        val productList = mutableListOf<QueryProductDetailsParams.Product>()
        for (product in LIST_OF_PRODUCTS) {

            productList.add(
                QueryProductDetailsParams.Product.newBuilder()
                    .setProductId(product)
                    .setProductType(BillingClient.ProductType.INAPP)
                    .build()
            )
        }

        params.setProductList(productList).let { productDetailsParams ->
            billingClient.queryProductDetailsAsync(productDetailsParams.build(), mOnProductDetailsResponse)
        }
    }


  private val LIST_OF_PRODUCTS = listOf(BASIC_SUB, PREMIUM_SUB)

Answer 1

There is no option to query all in-app products without specifying their productIds and type (BillingClient.ProductType.INAPP or BillingClient.ProductType.SUBS).

If some of the productIds don't exist or are provided with the wrong type, you won't receive an error but simply a returned list containing only those product details that match both criteria.

E.g. if BASIC_SUB and PREMIUM_SUB from the question are active subscriptions, then you'll receive an empty list when querying with ProductType.INAPP and a list of 2 product details when querying with ProductType.SUBS.