nullable event in subscription type

[trixobird]

I have this schema builder

new SchemaBuilder().subscriptionType({
  fields: (t) => ({
    streamParticipantEvents: t.field({
      type: ParticipantEvent,
      args: {
        streamSlug: t.arg.string({ required: true })
      },
      resolve: async (
        args,
        context
      ) => {
      },
      subscribe: async (root, args, context) => {
      }
    })
  })
})

Is there a way to have the type as optional (or nullable)

[hayes]

You can pass nullable: true to the field

[trixobird]

thank you for the lightning fast answer. Here is the ParticipantEvent

export const ParticipantEvent = builder.simpleObject('ParticipantEvent', {
  fields: (t) => ({
    event: t.field({
      type: ParticipantEventName
    }),
    user: t.field({ type: SimpleUser, nullable: true })
  })
});

I know that I can mark certain fields as nullable, what I am interested in is to have the whole ParticipantEvent as nullable

The simpleObject interface

        Interfaces extends InterfaceParam<Types>[],
        Fields extends FieldMap,
        Shape extends Normalize<
          OutputShapeFromFields<Fields> & ParentShape<Types, Interfaces[number]>
        >,
      >(
        name: string,
        options: SimpleObjectTypeOptions<Types, Interfaces, Fields, Shape>,
      ) => ObjectRef<Shape>;

Does not seems to have the Nullable Type

[hayes]

You can make the streamParticipantEvents field nullable which, but maybe I don't understand the question