NGINX as caching REST-API Proxy

gistfile1.txt

upstream backend {
    server localhost:8080;
    #server backup1.example.com:8080   backup;
    #server backup2.example.com:8080   backup;
}

# Set cache dir
proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=one:10m;

# Set cache key to include identifying components
proxy_cache_key $scheme$proxy_host$request_uri;

# Add cache status to log
log_format cache '$remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" cs=$upstream_cache_status';

server {
    listen 80;
    server_name localhost;

    ## Access and error logs.
    access_log /var/log/nginx/api-proxy.access.log cache;
    error_log  /var/log/nginx/api-cache.error.log;

    ## Server certificate and key.
    #ssl_certificate      ssl/example.com.crt;
    #ssl_certificate_key  ssl/example.com.key;

    add_header X-Cache-Status $upstream_cache_status;

    location / {
        proxy_redirect off; 
        proxy_set_header        Host $host;
        proxy_set_header        X-Forwarded-Host $host;
        proxy_set_header        X-Forwarded-Server $host;
        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header        X-Real-IP  $remote_addr;

        proxy_pass http://backend;

        proxy_cache one;
        proxy_ignore_headers X-Accel-Expires Expires Cache-Control;
        proxy_cache_valid 200 302 10m;
        proxy_cache_valid 404 1m;
    }
}