Nginx authentication with auth_request module

Question

i have installed nginx with auth_request module enabled, but i have a problem when i am trying to setup the authentication. I want to authenticate through a php script, when

Answer 1

The trick here is to combine auth_basic and auth_request, here is an example:

location = /api {
        satisfy any;
        auth_basic "Restricted Access";
        auth_basic_user_file "/usr/local/nginx/htpasswd";
        auth_request /auth;
        try_files $uri $uri/ /api.html;
    }

    location = /auth {
       proxy_pass http://localhost:8080;
       proxy_pass_request_body off;
       proxy_set_header Content-Length "";
       proxy_set_header X-Original-URI $request_uri;
    }

You will notice that auth_basic_user_file is present and you probably don't want it but you can leave a blank file, the satisfy any will accept any success, auth_basic will fail but will also set the user and password in the HTTP Headers that are forwarded to your backend script where you can handle them accordingly.