Play 2.1 for Http Server

Question

I am new to play framework. My requirement is very simple. I want to create rest api server in scala using play framework. I could use play2-mini, but it seems it is outdated.

I want play 2.1 to be used in my project. Instead of setting play framework as dependency, I want only core module. So I have few questions -

What is core module of Play ? what is module name ?
Is it sufficient to use core module for creating asynchronous http server ?
This link says I can use core module instead of play-mini. If it's true, where can I get more info about it.

damian damian · Accepted Answer · 2013-06-19T14:03:48

You can just simply setup a route and then point it to a controller that parses the data you send. Here is an example of json parsing and serving back a response with play.

http://www.playframework.com/documentation/2.1.1/ScalaJsonRequests

package controllers

import play.api._
import play.api.mvc._
import play.api.libs.json._
// you need this import to have combinators
import play.api.libs.functional.syntax._

object Application extends Controller {

  implicit val rds = (
    (__ \ 'name).read[String] and
    (__ \ 'age).read[Long]
  ) tupled

  def sayHello = Action { request =>
    request.body.asJson.map { json =>
      json.validate[(String, Long)].map{ 
        case (name, age) => Ok("Hello " + name + ", you're "+age)
      }.recoverTotal{
        e => BadRequest("Detected error:"+ JsError.toFlatJson(e))
      }
    }.getOrElse {
      BadRequest("Expecting Json data")
    }
  }
}

or even simpler...

def sayHello = Action(parse.json) { request =>
    request.body.validate[(String, Long)].map{ 
      case (name, age) => Ok("Hello " + name + ", you're "+age)
    }.recoverTotal{
      e => BadRequest("Detected error:"+ JsError.toFlatJson(e))
    }
  }

Play 2.1 for Http Server

3 Answers