Hi Maxim,

Thanks for the response.

As you said below,

> Instead, it issues a
> subrequest for every incoming request, and allows further
> processing of the request if and only if the subrequest returns
> 200.

This means my authentication service will be getting a subrequest to /login everytime a request reaches nginx. And if the subrequest returns 401 then it means the user needs to login. So kindly help me that how can I show a login page if a subrequest throws 401 ? My authentication service is sending a redirect in response alongwith the 401 status?

When I access my authentication service directly from browser without a logged-in session id, my browser is getting a 401 with redirect to /login which is login page. I want this same behaviour in my NGINX API gateway i.e. NGINX sends each request to API gateway if the request needs to be logged in a login page should be shown otherwise let the request access the resource. And I followed the nginx auth_request user guide to configure this as I showed my config in first thread.