Ok, i made some progress by using ``` override val descriptor: SerialDescriptor = buildSerialDesc...

# serialization

[Moritz Post]

Ok, i made some progress by using

override val descriptor: SerialDescriptor = buildSerialDescriptor("Create", StructureKind.LIST) {
      element("target", serialDescriptor<String>())
      element("method", serialDescriptor<String>())
      element("properties", serialDescriptor<Map<String, Any>>())
    }

The remaining problem now is the Map<String, Any> part where i want to resolve the properties into a Map with properties and possible sublists. However there is not serializer for Any. Any advice on how to serialize the Any correctly within the properties map?

[Emil Kantis]

replace Any with JsonElement?

[Emil Kantis]

you could even let the entire properties be a JsonElement,.. then you could do:

@Serializable data class Operation(val type: String, val active: Boolean, properties: JsonElement)

and skip doing custom serializer

[Moritz Post]

Ah good call. 🙏

[Moritz Post]

Changing the data class would be possibly but having regular kotlin types in there is preferred. Also, would't the serialization from the json array to the data class require the serializer anyway?

[Emil Kantis]

you’re right 🙂 sorry, thought that the example was just poorly formatted

[Moritz Post]

@Emil Kantis Are you still around? I found that using JsonElement as the Map value type is actually not performing the correct conversion. It treats primitive values as JsonPrimitive, requiring to get the content to retrieve the actual value. Is there a way to have the Any be serialized and deserialized into kotlin types?

[Emil Kantis]

None that I can think of right now

[Moritz Post]

That is what i thought. Thanks.