shoooe / graphql-nodatime Goto Github PK

I'm fairly new to GraphQL.NET, so maybe I'm missing something. When I add a nullable NodaTime field such as LocalDate?, I receive the following error:

The GraphQL type for field '<date field>' could not be derived implicitly from expression 'w => w.<date field>'.

It works fine for non-nullable fields.

Is there something I need to do to make this library work with nullable fields?

Update:

I've managed to get this code working:

Field(w => w.SomeDate, type: typeof(LocalDateGraphType))

However, the code below won't compile because "There is no implicit reference conversion from 'GraphQL.NodaTime.LocalDateGraphType' to 'GraphQL.Types.IGraphType'.":

Field(w => w.PlannedArrivalDate, type: typeof(NonNullGraphType<LocalDateGraphType>))

How do I create a non-nullable type?

Update again:

I suspect the problems are due to the reference to GraphQL being very out of date: this project references v2, but GraphQL has moved on to v7, and some of the AST code has changed.