that's great, let me know any help

what I'm developing now is a automatic generator for the converters from the data class

it may be not 100% correct but it's convenient for the first draft quickly

also, I'm interested in KN as well

ah and making it working with InputStream. We will have a 200Mb json to handle here 🙂

By native I was meaning GraalVM build-native, KN wait till some more libs (like IO) are ready to try it more…

ah, that's working without problems, I've an example

the hardest part was to discover the magic gradle configuration... 🙂

By stupid corp rules we also have some partners that for dates format requires just 3 numbers to the nanoseconds any way to specify the date output format ? Like:

"2021-04-10T19:00:51.170026Z"

is not good have to be

"2021-04-10T19:00:51.170Z"

you just need to define your own JInstant or whatever and use yours 🙂

Oh yes is that simple thanks…

we have a few very specific converters for our types, super easy

@Razvan I've added explicit null option today to Kondor 🙂

Hi Uberto, I was wandering if Kondor can du partial mapping. Let me explain, I have this json

{
	"internet-proxy": [
	 	{
			"label": "internet-proxy",
			"provider": null,
			"credentials": {
				"username": "red-haze",
				"password": "xxxxxxxxx",
			}
		}		
	]
}

and I just want to map to a list of

Credentials

objects with the username and password. Is it possible to avoid having to create a global object that just have the

internet-proxy

field as a list of another object that have a

credentials

field of type

Credentials

sorry @Razvan, for some reason Slack didn't notify me

actually if I understand your problem correctly there is a very elegant solution in Kondor using its profunctor interface

next time put my name or just pm me! :)

Hello @Uberto Barbini I’ve been struggling to write the converter for a specific use case. It’s a case of a nullable Enum field with properties. I tried the generator but wasn’t very helpful and couldn’t find any exemples of that. I want to serialise `TitleRequest`:

data class TitleRequest(
    val id: String,
    val type: TitleType? = null
)

enum class TitleType(val label: String) {
    Movie("movie"), Series("series"), Episoode("episode")
}

but the

type

field in the json I want to be the

TitleType.label

value instead the Enum’s name.

{
   id: "Title string",
   type: "movie"
}

Thanks

If you have a function that return the Enum from the label you can write a JTitleType converter:

object JTitleType : JStringRepresentable<TitleType>() {
    override val cons: (String) -> TitleType = ???
    override val render: (TitleType) -> String = TitleType::label
}

@Razvan let me know, in case I can add an example

checking about it, there is no reason why JStringRepresentable shouldn't work with nullable types. I've released v. 1.6.8 with your example for nullable JStringRepresentable (I hope it's ok)

Managed to make it work using

private val type by obj(JTitleType, TitleRequest::type)

and a few tricks

data class TitleRequest(
    val id: String,
    val type: TitleType?
)

enum class TitleType(val label: String) {
    Movie("movie"), Series("series"), Episoode("episode");

    companion object {
        fun fromLabel(label: String) = values().first { it.label == label }
    }
}

object JTitleType : JStringRepresentable<TitleType>() {
    override val cons: (String) -> TitleType = ::fromLabel
    override val render: (TitleType) -> String = TitleType::label

object JTitleRequest : JAny<TitleRequest>() {
    private val id by str(TitleRequest::id)
    private val type by obj(JTitleType, TitleRequest::type)

    override fun JsonNodeObject.deserializeOrThrow(): TitleRequest =
        TitleRequest(
            id = +id,
            type = type.getter(this).recover { null }
        )
}

class KondorTest {
    @Test
    fun `type not null`() {
        val inValue = TitleRequest("tom", TitleType.Movie)
        val json = JTitleRequest.toPrettyJson(inValue).also {
            println(it)
        }

        json shouldBe """
            {
              "id": "tom",
              "type": "movie"
            }
        """.trimIndent()
    }

    @Test
    fun `type is null`() {
        val inValue = TitleRequest("tom", null)
        val json = JTitleRequest.toPrettyJson(inValue).also {
            println(it)
        }

        json shouldBe """
            {
              "id": "tom"
            }
        """.trimIndent()
    }

    @Test
    fun `type is set to null when type is unknown`() {
        val inValue = """
            {
              "id": "tom",
              "type": "unknown"
            }
        """.trimIndent()
        val title = JTitleRequest.fromJson(inValue).orThrow()

        title shouldBe TitleRequest("tom", null)
    }
}

if you update to new version (1.6.8) it support nullable so it should work fine

I like this idea: "type.getter(this).recover { null }" I can create a type.orNull()...

I'm thinking about some changes on nullability but I need to think a little more about it.

the use case seems legit to me (let some fields to null if parse fails rather than failing the whole operation)

Hello @Uberto Barbiniback again with another question I can’t figure out. I got a service that reponds a String:

{ total: "10" }

But I know it is an Int and want to map it in my object as a int

data class Response(val total: Int?)

Can’t figure out how to write the converter to do that ? I was thinking about something like this but couldn’t make it work.

JResponse : JAny<Response>() {
  private val total by str???

  override fun JsonNodeObject.deserializeOrThrow(): Response = Response(total = (+total)?.toIntOrNull())
}

Is there any documentation on Lists / Arrays? - I’m having trouble seeing how to deserialise eg

{
    "places" : [
       { "lat" : 52.22, "long" : 22.11 },
       ...
    ]
}

Ah, OK, watched the video. The readme really needs an example of a nested array and object. For posterity, if I have

data class Root(val places: List<Place>)
    data class Place(val displayName: DisplayName)
    data class DisplayName(val text: String)

I can use

object JRoot : JAny<Root>() {
        val places by array(JPlace, Root::places)
        override fun JsonNodeObject.deserializeOrThrow() = Root(+places)
    }

    object JPlace : JAny<Place>() {
        val displayName by obj(JDisplayName, Place::displayName)
        override fun JsonNodeObject.deserializeOrThrow() = Place(displayName = +displayName)
    }

    object JDisplayName : JAny<DisplayName>() {
        val text: JsonProperty<String> by str(DisplayName::text)
        override fun JsonNodeObject.deserializeOrThrow() = DisplayName(+text)
    }

@Uberto Barbini heeeey, if you're about - latest release just blew up on upgrade: