ITypeModule and Filtering

[dogcane]

Hi everybody,
We've working on a project with the use of a custom ITypeModule based on a json schema. Our classes have some "static" properties defined on the .cs files and others "dynamic" properties that came from Json Schema (simple or complex objects).
Obviously the automatic filter creation cannot detect the dynamic properties.

We've made a test with the manual creation of the FilterInputTypeDefinition (made during our json schema recursive reading) :

var filterTypeDefinition = new FilterInputTypeDefinition()
            {
                Name = $"{parentTypeName}{typeName}FilterInput",
                EntityType = typeof(K),
                RuntimeType = typeof(K),
                UseAnd = true,
                UseOr = true
            };
...
var inputTypeName = $"{jsonType.GetGraphqlType()}OperationFilterInputType";
var inputField = new InputFieldDefinition(
    property.Key.ToCamelCase(),
    type: TypeReference.Parse(inputTypeName)
);                    
filterTypeDefinition.Fields.Add(inputField);

But we receive some errors about "base" type registration : Unable to resolve type reference StringOperationFilterInputType. (HotChocolate.Types.InputObjectType).

Is this approach correct? There are other ways?

Thanks in advance!
Andrea