hi I m using Kondor with Http4k

Question

hi < Razvan> I m using Kondor with Http4k

Razvan · Answer

Hi I could use it in my tests by manually declaring the Body mapping but I was wandering if there was a way to add it as a http4k format to do the do the automapping or implement `Json lt JsonNode gt ` With manually mapping is pretty straightforward ```val bodyMapper = Body string ContentType APPLICATION JSON map JStatus fromJsonThrow JStatus toJson toLens data class Status val status AppStatus val date String object JStatus JAny lt Status gt val status by str Status status val date by str Status date override fun JsonNodeObject deserializeOrThrow = Status status = +status date = +date fun fromJsonThrow json String = fromJson json orThrow ``` If you have some more advanced exemples I ll happy try to use them as inspiration

Uberto Barbini · Answer

We did somethink like ``` mapToLens JStatus ``` which work with any converter

Uberto Barbini · Answer

it s 3 lines of code let me find them

Razvan · Answer

Something like ```fun lt T Any K JAny lt T gt gt K mapToLens = Body string ContentType APPLICATION JSON map this fromJson it orThrow this toJson it toLens val bodyLens = JStatus mapToLens ``` I can se a `T mapToLens JAny lt T gt ` but it won t be a bidirectional lens just a one way to respond Status as Json

Uberto Barbini · Answer

Yes similar apart that is a bidilens

Uberto Barbini · Answer

Instead if JAny use JConverter so it would work also with collections and sealed class

Razvan · Answer

Thanks I ll keep playing with and see if I can come around with something working If I get lost I ll reach out Thank you

Uberto Barbini · Answer

I will put something in the kondor json examples and readme but yes please continue to experiment

Uberto Barbini · Answer

also we use these ext funs ``` for http clients fun lt T Any gt Request bodyAsJson converter JConverter lt T gt value T = body converter toJson value contentType APPLICATION JSON fun lt T Any gt Response parseJsonBody converter JConverter lt T gt T = converter fromJson bodyString orThrow for http servers fun lt T Any gt Request parseJsonBody converter JConverter lt T gt T = converter fromJson bodyString orThrow fun lt T Any gt Response bodyAsJson converter JConverter lt T gt value T = body converter toJson value contentType APPLICATION JSON ```

Razvan · Answer

Thanks useful ones Btw thanks for pairing with Dmitry for the videos on his youtube channel Always nice to see how other think and are programming

Uberto Barbini · Answer

yeah we should do more often

Uberto Barbini · Answer

btw me and Dmitry will present something about http4k together at JaxLondon in October

Razvan · Answer

Nice looking forward to It s awesome you take the time to spread the word about this great lib After http4k returning to some old Spring Boot projets at works is incredible painful Thank to all of you that help http4k to gain traction

Uberto Barbini · Answer