Could not deserialize ProductSetPayload

[amcroce]

Hello,

I was using the ProductSet mutation with the method that automatically deserializes the result, but at one moment is stopped deserializing and I am not sure why.

How I am using it?

This is an extract of what I was doing:

internal record ProductSetResult
{
    [JsonPropertyName("productSet")]
    internal required ProductSetPayload ProductSet { get; set; }
}

...

/// Then bellow in my code

...

 var graphRequest = new GraphRequest()
 {
     Query =
         """
         mutation upsertProduct($productSet: ProductSetInput!, $synchronous: Boolean!) {
             productSet(synchronous: $synchronous, input: $productSet) {
                 product {
                     id
                     handle
                     createdAt
                     publishedAt
                     variants(first: 50) {
                         nodes {
                             id
                             selectedOptions {
                                 name
                                 value
                             }
                         }
                     }
                 }
                 userErrors {
                     field
                     message
                     code
                 }
             }
         }
         """,
     Variables = new Dictionary<string, object>
     {
        // Here my variable properties, but this is not the issue so I will not waste space with this
     }
 };

var result = await graphService.PostAsync<ProductSetResult>(graphRequest);

The deserialization does not occur, I have no error but the result.Data.ProductSet is always null.

I ended up doing the deserialization myself, and I have no issues doing this without problem (I try catch user and query errors and have none in both cases)

using var result = await graphService.PostAsync(graphRequest);

var rawJsonObject = result.Json.GetRawObject();

if (rawJsonObject is not JsonElement jsonElement)
    throw new Exception("Unexpected json object type " + rawJsonObject.GetType().FullName);

if (jsonElement.GetProperty("data").GetProperty("productSet").ValueKind == JsonValueKind.Undefined || jsonElement.GetProperty("data").GetProperty("productSet").ValueKind == JsonValueKind.Null)
    throw new Exception("Json value is not defined or null for the product");

return new ProductSetResult() 
{
    ProductSet = new ProductSetPayload()
    {
        product = new ShopifySharp.GraphQL.Product()
        {
            id = jsonElement.GetProperty("data").GetProperty("productSet").GetProperty("product").GetProperty("id").GetString(),
            handle = jsonElement.GetProperty("data").GetProperty("productSet").GetProperty("product").GetProperty("handle").GetString(),
            createdAt = jsonElement.GetProperty("data").GetProperty("productSet").GetProperty("product").GetProperty("createdAt").GetDateTime(),
            variants = new ProductVariantConnection()
            {
                nodes = [.. jsonElement.GetProperty("data").GetProperty("productSet").GetProperty("product").GetProperty("variants").GetProperty("nodes").EnumerateArray().Select(variantNode => new ShopifySharp.GraphQL.ProductVariant()
                {
                    id = variantNode.GetProperty("id").GetString(),
                    selectedOptions = [.. variantNode.GetProperty("selectedOptions").EnumerateArray().Select(optionNode => new SelectedOption()
                    {
                        name = optionNode.GetProperty("name").GetString(),
                        value = optionNode.GetProperty("value").GetString()
                    })]
                })]
            }
        }
    }
};

For now is not urgent, but I would like to understand why in some cases it should work the automatic deserialization and other no (I used with other queries and mutations without problem i.e. CreateMetafieldDefinition)