I'm trying to get javalin to use kotlinx.serialization instead of Jackson. I found this on their git...

# serialization

[crummy]

I'm trying to get javalin to use kotlinx.serialization instead of Jackson. I found this on their github page:

JavalinJson.toJsonMapper = object : ToJsonMapper {
     override fun map(obj: Any) =  { /* Your implementation here */ }
}

I tried this:

JavalinJson.fromJsonMapper = object : FromJsonMapper {
        override fun <T> map(json: String, targetClass: Class<T>): T {
            return Json.parse(T::class.serializer(), json)
        }
    }

But get Unresolved reference: serializer . Is this how to go about it?

[crummy]

I can call User.serializer() OK so I think I've set up the compiler plugin correctly. Just not sure how to do it on a generic.

[Sam Garfinkel]

Use serializer(typeOf<T>)

[Sam Garfinkel]

But caveat, that method only works for serializers that are available at compile time. It doesn’t work for contextual serializers, which includes generics.