Simple REST API - Play Typing CST Test

Simple REST API — Play Code

Demonstrates a simple Play controller with routes for listing and adding items using Scala.

// app/controllers/ItemController.scala
package controllers

import play.api.mvc._
import play.api.libs.json._
import javax.inject._

case class Item(id: Int, name: String)
object Item { implicit val format = Json.format[Item] }

@Singleton
class ItemController @Inject()(val controllerComponents: ControllerComponents) extends BaseController {

  private var items = Seq(Item(1, "Item 1"), Item(2, "Item 2"))

  def list = Action {
    Ok(Json.toJson(items))
  }

  def add = Action(parse.json) { request =>
    val newItem = request.body.as[Item]
    items = items :+ newItem
    Created(Json.toJson(newItem))
  }
}

// conf/routes
GET     /items          controllers.ItemController.list
POST    /items          controllers.ItemController.add

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Play Framework is a high-velocity, reactive web framework for Java and Scala, designed for building modern web applications and RESTful services. It emphasizes developer productivity, statelessness, and asynchronous I/O.

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