I was trying to follow the official documentation for creating SAML auth configurations with the below KB article.
demo url : https://helpx.adobe.com/experience-manager/kb/simple-saml-demo.html
i'm unable to understand the steps involved to create the localhost:4502/saml_login node, do i have to create a node under / with which primary type the node needs to be created?
You don't need to create the saml_login node. All its doing is posting the IDP response to saml_login.
Are you configuring this on local? Try to follow below link for local SAML setup:
Follow these links -