We are implementing React JS as front end and Pega is back end to maintain all data. By using Pega API calls, we can create cases and process the cases. We have SSO (SAML with Azure directory) implemented for Pega which is working fine from Pega. Now we want use the SSO from external React JS application. We have option to use SAML auth service as authentication service for REST services. Can some one help how to use that and what are all the params to pass when we configure SAML as authentication service for REST API.