mutable repo

gistfile1.txt

object Main extends App {
  case class User(id: String, name: String)

  val users = scala.collection.mutable.Map(
    "1" -> User("1", "Fernando"),
    "2" -> User("1", "Darren"),
  )

  object UserRepository {
    def getUserById(id: String): Option[User] = {
      users.get(id)
    }

    def insertUser(id: String, user: User): Unit = {
      users.put(id, user)
      ()
    }
  }

  val user = UserRepository.getUserById("1").get

  UserRepository.insertUser("1", user.copy("1", "Fernando 2"))
}