Error on generating code for non nullable ICollection<Guid>

[mwilde]

Describe the bug

If you have a DTO (maybe record) with a non nullable property ICollection<Guid> MyValues than the generated schema.graphql looks great: input MyDtoInput { myValues: [UUID!]! }

But the code generator for StrawberryShake throws an error on generating process: Non-Nullable-Feld "_value_myValues" muss beim Beenden des Konstruktors einen Wert ungleich NULL enthalten. Erwägen Sie eine Deklaration von "Feld" als Nullable.

To get the process working the only possibility is to mark ICollection<Guid>? MyValues as nullable.

Steps to reproduce

1. Create DTO public record MyDto( ICollection<Guid> MyValues);
2. Create DTO public record MyInput( MyDto MyValue)
3. Update schema with dotnet graphql update
4. Create mutation mutation SendMyInput( $dto:MyInput!){ sendMyInput( input: $dto ) }
5. The code generator throws the error

Relevant log output

Non-Nullable-Feld "_value_myValues" muss beim Beenden des Konstruktors einen Wert ungleich NULL enthalten. Erwägen Sie eine Deklaration von "Feld" als Nullable.

Product

Hot Chocolate, Strawberry Shake

Version

12.6.0

[PascalSenn]

@mwilde can you share query and schema?

[mwilde]

@PascalSenn here is my schema and the mutation:

schema { mutation: Mutation }

type Mutation { setMyValue(input: SetMyValueInput!): SetMyValuePayload! }

type SetMyValuePayload { errors: [UserError!]! }

scalar UUID

type UserError { message: String! }

input SetMyValueInput { myValue: MyDtoInput! }

input MyDtoInput { myIds: [UUID!]! }

mutation SetMyValue( $dto:SetMyValueInput!){ setMyValue( input: $dto ){ errors { message } } }

[mwilde]

@PascalSenn the same error occurs if you have a collection of type Enum.

[mwilde]

@PascalSenn what is the status here?

[mwilde]

@PascalSenn what is the status here?

[QuentonB]

I'm running into the same issue on version 12.12.1, is there any update @PascalSenn @tobias-tengler ?

[nesherhh]

Have this problem with 13.9.12 Error in English: "error CS8618: Non-nullable field '_value_ids' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable."

Workaround: Create a partial class with the same name and default constructor. Disable warning with #pragma

public partial class MyDtoInput
{
#pragma warning disable CS8618
  public MyDtoInput() {}
#pragma warning restore CS8618
}