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copied!<h2>EDIT2</h2> <p>New <a href="http://www.playframework.com/documentation/2.1.x/ScalaJsonRequests" rel="nofollow">Wiki link</a> for v2.1. The old link below is not working anymore.</p> <h2>EDIT</h2> <p>We'll all be happy to read the new Wiki entry for this point. Check <a href="https://github.com/playframework/Play20/wiki/Scalajson" rel="nofollow">this</a> out</p> <hr> <h2>PREVIOUS</h2> <p>Here is the comment from the community about the state of Json support in play 2.0. <a href="https://groups.google.com/d/msg/play-framework/VeVacV4CU1o/Zm5gzwF7PScJ" rel="nofollow">link to Post</a></p> <p>They are moving from Jackson to a philosophy inspired by <a href="http://debasishg.blogspot.com/2010/07/sjson-now-offers-type-class-based-json.html" rel="nofollow">SJSON</a> that offers more control on the un/marshalling, that brings facilities to manage them, w/o the overhead of Reflection (which I agree with them is a pain for performance and is fragile against Class changes...)</p> <p>So here is what you can read on the post:</p> <pre><code>case class Blah(blah: String) // if you want to directly serialize/deserialize, you need to write yourself a formatter right now implicit object BlahFormat extends Format[Blah] { def reads(json: JsValue): Blah = Blah((json \ "blah").as[String]) def writes(p: Blah): JsValue = JsObject(List("blah" -> JsString(p.blah))) } def act = Action { implicit request => // to get a Blah object from request content val blah = Json.parse(request.body.asText.get).as[Blah] // to return Blah as application/json, you just have to convert your Blah to a JsValue and give it to Ok() Ok(toJson(blah)) } </code></pre> <p>In the second link (<a href="http://debasishg.blogspot.com/2010/07/sjson-now-offers-type-class-based-json.html" rel="nofollow">SJSON</a>), I propose you to pay special attention to the generic formatting possible by using <code>case class</code> and their deconstruction method (<code>unapply</code>).</p>

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