Example of deserializing list of dynamic json with jackson.

Deserialize.kt

		
data class Envelope(
	val type: String,
	val payload: JsonNode
)

data class Thing1(
	val property: String
)

data class Thing2(
	val property: String
)

val objectMapper = ObjectMapper()
objectMapper.registerKotlinModule()
val json = """[{"type": "thing1", "payload": {"property": "foo"}},{"type": "thing2", "payload": {"property": "foo"}}]"""

val objs: List<Envelope> = objectMapper.readValue(json)

val deserialized = mutableListOf<Any>()

for (obj in objs) {
  val javaType = when (obj.type) {
    "thing1" -> Thing1::class.java
    "thing2" -> Thing2::class.java
    else -> null
  }

  if (javaType != null) deserialized.add(objectMapper.treeToValue(obj.payload, javaType))
}

for (obj in deserialized) {
  when (obj) {
    is Thing1 -> println("Is thing1 $obj")
    is Thing2 -> println("Is thing1 $obj")
  }
}