[Web application] - How to integrate Duo with SAML with Nodejs + Angularjs

Hi all,

Currently, I’m working on a project that has Nodejs as BackEnd and Angulajs as Frontend. Now, we’d like to integrate Duo as an authenticator by using SAML. I contacted IT to help generate a SAML configuration by following this doc Single Sign-On for Generic SAML Service Providers | Duo Security. After configuring SAML on Duo Admin Portal, IT sent to me information such as Single Sign-On URL, Single Log-Out URL, Certificate… I’m assuming that when the user clicks on the Login button for example then it will redirect to the Login URL and Duo will handle login, but my question is how can I get the callback after all verify steps of Duo like status, session…bla… blah?