Automatic object derivation for complex types

Hi,

If I have a case class with complex types, e.g…

case class IndexComponentDb(id: String, name: String, weight: Double)
case class ShareClassMetaDb(
                             id: UUID,                             
                             countriesOfSale: Set[String],
                             status: String,
                             benchmarks: List[IndexComponentDb],
                             [...])

and then do automatic object derivation

val ShareClassType: ObjectType[ShareClassModel.type, ShareClassMetaDb] = {
    deriveObjectType[ShareClassModel.type, ShareClassMetaDb](
      ObjectTypeName("ShareClass"),
      ObjectTypeDescription("A share class."),
      ExcludeFields("id"))
  }

then these kinds of errors appear:

Can't find suitable GraphQL output type for Set[String], 
Can't find suitable GraphQL output type for List[IndexComponent] 

Once we have GraphQL types for the base types, in this case, String and IndexComponent, can’t Sangria automatically derive List’s and Set’s of them?

I can define a GraphQL output type for Set[String] but it doesn’t make much sense… so I think I’m probably missing something.

So how does one provide an output type in these kinds of cases?

Thanks!

[kflorence]

Just ran into this. Might be nice to mention somewhere in the README a list of gotchas like this to save people some time.

[meddulla]

Sorry for the long delay but been on holidays. That link provided some useful clues on how to solve this, so thanks 😃