[dpratt99]

I can't agree more - I've been doing a non-trivial bit of scala work in the past six months, and the part that seems the most lacking to me is JSON support. Every scala JSON library I've used (spray-json, sbjson, lift-json and the like) requires you to define a concrete serializer class for every single type you would like to move across the wire. I really miss the ease of use of reflection-based parsers like Jackson. I've alleviated a bit of this by writing a generic serializer that uses Jackson under the hood, but that requires every class to use a java bean pattern, and not the more elegant scala case class (or frankly plain old scala object) patterns.

There's a project called Jerkson that is attempting to fix this, but I'd like to see all the major scala frameworks just settle on something good and simple and go from there.

[djb_hackernews]

You might want to check out lift-json again. It can easily serialize and deserialize case classes. https://github.com/lift/lift/tree/master/framework/lift-base...

Also, Play 2.0 includes Jerkson, so whatever Jerkson can do, Play 2.0 can do. They just happened to add some helper utilities that made it very similar to lift-json. So I think the community is settling on something good and simple.

[eloisant]

I disagree on the fact that JSON is a second-class citizen. A lot of effort went into good support of JSON. But obviously, Scala and Java being statically typed languages, you can't expect to use JSON in those languages like you use them in Javascript.

The reason why everyone encourage you to do so is because typeclass serialization is much more robust that introspection. With introspection you may have runtime exceptions, but with typeclass serialization you know at compile time when something is wrong.

Also, Jerkson is included in Play 2 (that's what we use as base for the Json lib) so you can use it directly if you want introspection.

But if you choose typeclass serialization, you can still define serializers easily, in one line, without losing the type-safety: https://github.com/playframework/Play20/blob/master/framewor...

[domlebo70]

Jerkson works really well. Can convert JSON into case-classes really nicely and handles snake-types.

[johnx123-up]

Probably Xitrum? https://github.com/ngocdaothanh/xitrum