# How to using wiring for Play controller **URL:** \ **Category:** macwire\ **Created:** [January 25, 2023, 6:52am UTC](https://softwaremill.community/t/how-to-using-wiring-for-play-controller/103 "2023-01-25T06:52:58Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![prasad\_mokkapati](https://dub1.discourse-cdn.com/flex005/user_avatar/softwaremill.community/prasad_mokkapati/32/83_2.png) [@prasad\_mokkapati](https://softwaremill.community/u/prasad_mokkapati)\ **Post date:** [January 25, 2023, 6:52am UTC](https://softwaremill.community/t/how-to-using-wiring-for-play-controller/103/1 "2023-01-25T06:52:58Z")
I am using a model similar to [https://alvinalexander.com/scala/how-to-implement-user-authentication-play-framework-application/](https://alvinalexander.com/scala/how-to-implement-user-authentication-play-framework-application/) I defined a trait and wired CodingService trait ServicesModule { import com.softwaremill.macwire.\_ lazy val codingService = wire[CodingService] } I then defined a controller class CodingCtrl @Inject()(cc: ControllerComponents, authenticatedAction: AuthenticatedAction) extends AbstractController(cc) and it fails If I use class CodingCtrl(codingService:CodingService) (cc: ControllerComponents) extends AbstractController(cc) { It works. How can I handle this so I can pull in AuthenticatedAction while wiring in CodingService as well ? Thank you ---
**Author:** ![adamw](https://dub1.discourse-cdn.com/flex005/user_avatar/softwaremill.community/adamw/32/28_2.png) [@adamw](https://softwaremill.community/u/adamw)\ **Post date:** [January 26, 2023, 8:30pm UTC](https://softwaremill.community/t/how-to-using-wiring-for-play-controller/103/2 "2023-01-26T20:30:39Z")
I’m not sure what the error is that you are getting, but if `CodingService` requires an `AuthenticatedAction`, it needs to be in-scope when wiring. For example: ```auto trait ServicesModule { import com.softwaremill.macwire._ lazy val codingService = wire[CodingService] def authenticatedAction: AuthenticatedAction } ``` And the concrete value for `authenticatedAction` would need to be provided by something that is mixed in with `ServicesModule` ---
**Author:** ![prasad\_mokkapati](https://dub1.discourse-cdn.com/flex005/user_avatar/softwaremill.community/prasad_mokkapati/32/83_2.png) [@prasad\_mokkapati](https://softwaremill.community/u/prasad_mokkapati)\ **Post date:** [January 26, 2023, 9:24pm UTC](https://softwaremill.community/t/how-to-using-wiring-for-play-controller/103/3 "2023-01-26T21:24:36Z")
The problem seems to be with Cannot find a value of type: [play.api.mvc.BodyParsers.Default] I am importing in import play.api.mvc.BodyParsers.\_ import play.api.mvc.BodyParsers and tried with LoggingAction to see it that works. Have the same issue - seems like an issue with BodyParsers ? ---
**Author:** ![prasad\_mokkapati](https://dub1.discourse-cdn.com/flex005/user_avatar/softwaremill.community/prasad_mokkapati/32/83_2.png) [@prasad\_mokkapati](https://softwaremill.community/u/prasad_mokkapati)\ **Post date:** [January 30, 2023, 8:30pm UTC](https://softwaremill.community/t/how-to-using-wiring-for-play-controller/103/4 "2023-01-30T20:30:07Z")
Hi Adam, Thanks for your response I have the trait trait CodingModule extends ServicesModule { import com.softwaremill.macwire.\_ lazy val AuthenticatedAction = wire[AuthenticatedAction] lazy val CodingCtrl = wire[CodingCtrl] def controllerComponents: ControllerComponents } and AuhenticatedAction as … class AuthenticatedAction @Inject()(parser: BodyParsers.Default) (implicit ec: ExecutionContext) extends ActionBuilderImpl(parser) { … I am trying to inject AuthenticatedAction into my controller and I get the following message when I compile Cannot find a value of type: [play.api.mvc.BodyParsers.Default] [error] lazy val AuthenticatedAction = wire[AuthenticatedAction] Seems like it’s unable to wire play.api.mvc.BodyParsers.Default - Default ? I did import - play.api.mvc.BodyParsers.\_ Not sure if the above information is sufficient to know the cause or you need more info. Thank you, Prasad ---
**Author:** ![prasad\_mokkapati](https://dub1.discourse-cdn.com/flex005/user_avatar/softwaremill.community/prasad_mokkapati/32/83_2.png) [@prasad\_mokkapati](https://softwaremill.community/u/prasad_mokkapati)\ **Post date:** [February 3, 2023, 10:41pm UTC](https://softwaremill.community/t/how-to-using-wiring-for-play-controller/103/5 "2023-02-03T22:41:54Z")
I am using macwire in a different app and it works fine, > **[GitHub - pmokkapati/nettyapp: Application using Netty and Macwire](https://github.com/pmokkapati/nettyapp)** > > Application using Netty and Macwire. Contribute to pmokkapati/nettyapp development by creating an account on GitHub. It’s just when I try to inject something that seem to contains - Play BodyParsers.Default that it’s failing ---
**Author:** ![adamw](https://dub1.discourse-cdn.com/flex005/user_avatar/softwaremill.community/adamw/32/28_2.png) [@adamw](https://softwaremill.community/u/adamw)\ **Post date:** [February 6, 2023, 4:53pm UTC](https://softwaremill.community/t/how-to-using-wiring-for-play-controller/103/6 "2023-02-06T16:53:18Z")
I didn’t use Play for a long time, but looking at the code (the constructors), to create `BodyParsers.Default`), you need a `PlayBodyParsers` instance. To create that, you need to instantiate `DefaultPlayBodyParsers`, which has its own dependencies etc. I think Play might come with these instance pre-defined, in the `BuiltInComponentsFromContext` trait. Maybe this example: [play-samples/GreetingApplicationLoader.scala at 2.8.x · playframework/play-samples · GitHub](https://github.com/playframework/play-samples/blob/2.8.x/play-scala-macwire-di-example/app/GreetingApplicationLoader.scala) will be helpful? ---
**Author:** ![prasad\_mokkapati](https://dub1.discourse-cdn.com/flex005/user_avatar/softwaremill.community/prasad_mokkapati/32/83_2.png) [@prasad\_mokkapati](https://softwaremill.community/u/prasad_mokkapati)\ **Post date:** [February 8, 2023, 6:19pm UTC](https://softwaremill.community/t/how-to-using-wiring-for-play-controller/103/7 "2023-02-08T18:19:38Z")
Thanks Adam. That was the problem I was having - creating an instance of BodyParsers, since there are many of them. Let me see if I can figure it out.