Proxy cache sample.

proxy_cache.conf

proxy_cache_path /data/proxy_cache levels=1:2  keys_zone=ui-cache:10m max_size=2048m;
server {
                # api proxy
                listen 80;
                
                # Force cache post data for 3 days.
                location /xxxx.php {
                        proxy_cache_key "$scheme://$host$request_uri|$request_body";
                        proxy_cache_valid  200 3d;
                        proxy_cache ui-cache;
                        proxy_cache_methods POST;
                        proxy_pass http://127.0.0.1:8200/xxxx.php;
                }
                
                # Cache url with basic auth.
                location / {
                        proxy_set_header Host "notsobad.me";
                        proxy_cache_key "$scheme://$host$request_uri|$http_authorization";
                        proxy_cache ui-cache;
                        proxy_pass http://10.10.10.10/;
                }
                
}