public async Task <ActionResult> RedirectToRelyingPartyLogin(string clientId, string returnUrl) { if (string.IsNullOrEmpty(clientId)) { clientId = _owinWrapper.GetIdsClientId(); returnUrl = _owinWrapper.GetIdsReturnUrl(); } var redirectUrl = await _accountOrchestrator.StartRedirectToAuhorizedClientEndpoint(clientId, returnUrl); return(Redirect(redirectUrl)); }