Login Page URL:
[login to view URL]
Above is login page URL
[login to view URL]
[login to view URL]
Check this api with postman
you'll get idea
website login from the pic section will be validate from the user data [login to view URL] and the user details will be saved in joomla site. This function will be handeled by a API . If user is not registered in eWeb then user has to create account and then it will login back to website