User Login example 1

LoginContract.kt

class LoginContract {
  interface View {
    fun goToOtpPage(userId: String)
    fun showError(message: String)
    fun onLoginButtonClicked()
  }

  interface Presenter {
    fun onLoginBtnPressed(username: String, password: String)
    fun onLoginSuccess(userid: String)
    fun onLoginError(message: String)
  }

  interface Interactor {
    fun login(username: String, password: String)
  }

  interface InteractorOutput {
    fun onLoginSuccess(userId: String)
    fun onLoginError(message: String)
  }
}