tasce

class UserApi @Inject() (db:  play.api.db.DBApi ) {
  val dababase = db.database("name")

   def login(email: String, password: String): Option[User] = {
    dababase.withConnection { implicit c =>
      // TODO
     }
    }
}

//controller 

class MyController @Inject() (userApi: UserApi ) extends Conroller {
 //your code
}