Controller which inputs username and password and trigger Api on click.

LoginController.swift

class LoginController:UIViewController {
  
  private func loginUser() {
    ServiceController().loginUser(request: LoginRequest(email: emailTF.text, password: passwordTF.text)) {[weak self] (result) in
                self?.dismissProgressBar()
                guard let self = self else { return }
                switch result {
                    case .success(let response):
                        print("login success \(response)")
                        break
                    case .failure(let error):
                       print("login failed \(error)")
                }
            }
  }
}