Dynamic input fields

[pkese]

I'm rendering my schema definitions (both inputs and outputs) dynamically, based on database schema.

For example if my database table has fields

CREATE TABLE my_table (
    id GUID NOT NULL
    name STRING
    age INT
    items ARRAY<INT>
)

... then I'm dynamically creating input filters that provide different functionality for each field depending on field type, e.g.

• id will have comparison but no isNull filters
• name will include string comparison options
• age will have numerical comparisons including isNull
• items is an array and may include isEmpty, contains filters.

let MyTableFilters = Define.InputObject("MyTableFilters", [
    Define.Input("id", NonNullGuidFilters)
    Define.Input("name", StringFilters)
    Define.Input("age", IntFilters)
    Define.Input("items", IntArrayFilters)
])

I can create such an input filters object, but I don't know how to extract values supplied in these input filters during the request processing.
What kind of type should I define for such a case?

Documentation is not very helpful either.
The page has an example of defining an input object without a concrete generic type but samples in actual code in repository all have generics:

let CreateAccountData = Define.InputObject("CreateAccountData", [ ... ])
// vs
let CreateAccountData = Define.InputObject<AccountData>("CreateAccountData", [ ... ])

So my question is:

1. where and how do I extract data from these input objects in the runtime?
2. what kind of a type should I supply it ... can it be ⬇️ ?

let MyTableFilters = Define.InputObject<Dictionary<string,obj>>("MyTableFilters", [ ... ])

I'm currently maintaining a hacked version of the FSharp.Data.GraphQL codebase where I added support for

let MyTableFilters = Define.InputObject<System.Data.ExpandoObject>("MyTableFilters", [ ... ])

but now my project is getting some traction and I need to move away from my hackish solution that breaks on every merge from upstream.

[xperiandri]

It is better to implement a test for this. And if it fails I will pick up your code and make it work or propose changes if you want to implement yourself