Corda + Ktor - jackson

Server.kt

fun ContentNegotiation.Configuration.cordaJackson(proxy: CordaRPCOps) {
  val mapper: ObjectMapper = JacksonSupport.createDefaultMapper(proxy)
  mapper.apply {
    setDefaultPrettyPrinter(DefaultPrettyPrinter().apply {
      indentArraysWith(DefaultPrettyPrinter.FixedSpaceIndenter.instance)
      indentObjectsWith(DefaultIndenter("  ", "\n"))
    })
  }
  val converter = JacksonConverter(mapper)
  register(ContentType.Application.Json, converter)
}