play-action-composition-problem.scala

import play.api.mvc.Security

object AuthAction extends Security.AuthenticatedBuilder[User](...)

type AuthReq = Security.AuthenticatedRequest[_, User]

object AuditLogAction extends ActionFunction[AuthReq, AuthReq] {

  def invokeBlock[A](request: AuthReq[A], block: AuthReq[A] => Future[Result]): Future[Result] = {
    /*
     * 本当はPOSTの場合、request.body.asFormUrlEncoded も出力したいけど、
     * AnyContent でなく A しか持ってない。
     * ジェネリクスを無くして A を AnyContent に固定したい。
     */
    println(s"User: ${request.user.email}, path: ${request.path}, method: ${request.method}")
    
    block(request)
  }
  
}

object MyCtlr extends Controller {

  def authPage = (AuthAction andThen AuditLogAction){ implicit request =>
    // ...
  }
  
}

Would the following work?

def invokeBlock[A](request: AuthReq[A], block: AuthReq[A] => Future[Result]): Future[Result] = {
   request.body match {
      case c: AnyContent => c.asFormUrlEncoded.foreach(println)
      case _ => // not AnyContent
    }
   // ...
}