# OpenapiClient::Secure3DAuthenticationResponseParams ## Properties Name | Type | Description | Notes ------------ | ------------- | ------------- | ------------- **payer_authentication_request** | **String** | Message sent from merchant server to authenticate the cardholder. | [optional] **term_url** | **String** | Terminal URL for processing request. | [optional] **merchant_data** | **String** | Formatted string encoding transaction time, order ID, and return URL data. | [optional] **acs_url** | **String** | The URL for the authentication redirect for the merchant. | [optional] **c_req** | **String** | The CReq message initiates cardholder interaction in a 3DS 2.1 challenge flow and carries authentication data from the cardholder. | [optional] **session_data** | **String** | Customer web browser session data. | [optional] ## Code Sample ```ruby require 'OpenapiClient' instance = OpenapiClient::Secure3DAuthenticationResponseParams.new(payer_authentication_request: c7fb83b8ag...73t4a827t4af8738a, term_url: https://api.example.com/redirectToAcs, merchant_data: MD123...sdfk, acs_url: https://3ds-acs.test.modirum.com/mdpayacs/pareq, c_req: ewogICAiYWNzVHJhbnNJRCIgOiAiMDAwMDAwMDAtMDAwNS01YTVhLTgwMDAtMDE2ZmE1NTYzODMyIiwKICAgImNoYWxsZW5nZVdpbmRvd1NpemUiIDogIjAzIiwKICAgIm1lc3NhZ2VUeXBlIiA6ICJDUmVxIiwKICAgIm1lc3NhZ2VWZXJzaW9uIiA6ICIyLjEuMCIsCiAgICJ0aHJlZURTU2VydmVyVHJhbnNJRCIgOiAiZGVmOWZiZDgtZjkzNS01YzcyLTgwMDAtMDAwMDAwMDgyOWVkIgp9, session_data: 50F2156E03083CA665BCB4..) ```