Upload a file into GridFS using Play2.1 and ReactiveMongo 0.8

UploadGridFS.scala

package controllers

import play.api.mvc._
import play.api.Play.current
import play.modules.reactivemongo._
import customcommands._
import reactivemongo.bson._
import reactivemongo.bson.handlers.DefaultBSONHandlers._
import play.api.libs.json._
import reactivemongo.api.gridfs._

object Application extends Controller with MongoController {

  def gfs = GridFS(database)
  
  def upload() = Action(gridFSBodyParser(gfs)) { request =>
    request.body.files.headOption.map { file =>
      Async {
        file.ref.map { file =>
          Ok
        }
      }
    }.getOrElse(BadRequest)
  }
}