kotlinx.serialization.SerializationException: Class 'WrappedObjectId' is not registered for polymorphic serialization in the scope of 'Id'.
Mark the base class as 'sealed' or register the serializer explicitly.

This is what I get 😞 My model class:

Forgot to mention that it works for document to object mapping fine, but only when sending the same object as a response to an API call, it doesn't work. Managed to make it work using this in Ktor:

val jsonConfig = Json { serializersModule = IdKotlinXSerializationModule }
    install(ContentNegotiation) { json(jsonConfig) }

using dependency:

implementation("org.litote.kmongo:kmongo-id-serialization:4.1.3")

Only problem now: the

_id

field is still returned as

_id

instead of

id

even while using the

@SerialName("_id")

annotation 😫

Also, how do I represent other types? E.g. The

Point

class for geo-spatial queries?

readString can only be called when CurrentBSONType is STRING, not when CurrentBSONType is DOCUMENT.

I get this error when I use this custom serializer: