NodaTime Filtering

[PascalSenn]

Credits go to @Chris-Hogan-Logikos

You can use the following extension to add support for NodeTime filtering:

public static IRequestExecutorBuilder AddNodaTimeFiltering(this IRequestExecutorBuilder builder)
{
    if (builder is null)
    {
        throw new ArgumentNullException(nameof(builder));
    }

    return builder.AddConvention<IFilterConvention>(
        new FilterConventionExtension(configure =>
        {
            configure.BindRuntimeType<Instant, ComparableOperationFilterInputType<Instant>>();
            configure.BindRuntimeType<Instant?, ComparableOperationFilterInputType<Instant?>>();
            configure.BindRuntimeType<LocalDate, ComparableOperationFilterInputType<LocalDate>>();
            configure.BindRuntimeType<LocalDate?, ComparableOperationFilterInputType<LocalDate?>>();
            configure.BindRuntimeType<Duration, ComparableOperationFilterInputType<Duration>>();
            configure.BindRuntimeType<Duration?, ComparableOperationFilterInputType<Duration?>>();
            configure.BindRuntimeType<Period, ComparableOperationFilterInputType<Period>>();
            configure.BindRuntimeType<Period?, ComparableOperationFilterInputType<Period?>>();
        }));
}

Make sure to call this extension method after you registered filtering

public void ConfigureServices(IServiceCollection services)
{
    services
        .AddGraphQLServer()
        .AddQueryType<QueryType>()
        .AddType<InstantType>() 
        .AddFiltering()
        .AddNodaTimeFiltering();
}

[ejlevin1]

Just as an add on (thank you @PascalSenn for that snippet)... In order to also get ZonedDateTime in the allowed Types, simply add them like so:

public static class NodaTimeExtensions
{
    public static IRequestExecutorBuilder AddNodaTimeFiltering(this IRequestExecutorBuilder builder)
    {
        if (builder is null)
        {
            throw new ArgumentNullException(nameof(builder));
        }

        return builder.AddConvention<IFilterConvention>(
            new FilterConventionExtension(configure =>
            {
                configure.BindRuntimeType<Instant, ComparableOperationFilterInputType<Instant>>();
                configure.BindRuntimeType<Instant?, ComparableOperationFilterInputType<Instant?>>();
                configure.BindRuntimeType<LocalDate, ComparableOperationFilterInputType<LocalDate>>();
                configure.BindRuntimeType<LocalDate?, ComparableOperationFilterInputType<LocalDate?>>();
                configure.BindRuntimeType<Duration, ComparableOperationFilterInputType<Duration>>();
                configure.BindRuntimeType<Duration?, ComparableOperationFilterInputType<Duration?>>();
                configure.BindRuntimeType<Period, ComparableOperationFilterInputType<Period>>();
                configure.BindRuntimeType<Period?, ComparableOperationFilterInputType<Period?>>();
                configure.BindRuntimeType<ZonedDateTime, ComparableOperationFilterInputType<ZonedDateTime>>();
                configure.BindRuntimeType<ZonedDateTime?, ComparableOperationFilterInputType<ZonedDateTime?>>();
            }));
    }
}