nginx.conf

worker_processes auto;

events {
    worker_connections 1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    client_max_body_size 25M;

    server_tokens off;
    proxy_hide_header X-Powered-By;

    # rate limiting
    limit_req_zone $binary_remote_addr zone=req_limit_per_sec:10m rate=1r/s;
    limit_req_zone $binary_remote_addr zone=req_limit_per_min:10m rate=60r/m;
    limit_req_status 429;
    # error pages
    error_page 429 /custom_429.html;
    error_page 502 /custom_502.html;
    error_page 404 /custom_404.html;

    # Remove the legacy header and add a CSP header for frame-ancestors:
    add_header X-Frame-Options SAMEORIGIN always;
    
    add_header X-Content-Type-Options nosniff always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy strict-origin-when-cross-origin always;

    # Custom error pages
    error_page 502 /custom_502.html;

    server {
        listen 8080;

        # ---- Frontend Remember ----
        location / {
            alias /app/FrontEnd/remember/;
            index index.html;
            try_files $uri $uri/ /index.html;
        }

        location /status {
            # Rate limiting for all requests
            limit_req zone=req_limit_per_sec nodelay;
            limit_req zone=req_limit_per_min nodelay;

            add_header Content-Type application/json;
            return 200 '{"status":"online","output":"Welcome to the HamzaYslmn API Service! 🏔️","message":"Or perhaps you\'re looking for the answer to the ultimate question of life, the universe, and everything? 🌌"}';
        }

        location /space {
            default_type text/plain; # veya text/html
            add_header Content-Type "text/plain; charset=utf-8" always;
            return 200 "🌌";
        }

        # Proxy to Backend API
        location /api/ {
            #limit_req zone=req_limit_per_sec burst=1 nodelay;
            #limit_req zone=req_limit_per_min burst=60 nodelay;

            proxy_pass http://127.0.0.1:8001/api/;
            
            # WebSocket support
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "Upgrade";

            # Optional: Adjust timeouts for WebSocket
            proxy_read_timeout 3600;
            proxy_send_timeout 3600;

            # Standard proxy headers
            proxy_set_header Host              $host;
            proxy_set_header X-Real-IP         $remote_addr;
            proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
        }

        # Custom error page location for rate limiting errors
        location = /custom_429.html {
            internal;
            add_header Content-Type application/json;
            return 429 '{"message": "Too Many Requests"}';
        }

        # Custom error page location for backend 502 errors
        location = /custom_502.html {
            internal;
            add_header Content-Type application/json;
            return 502 '{"message": "Bad Gateway"}';
        }

        # Custom error page location for 404 Not Found errors
        location = /custom_404.html {
            internal;
            add_header Content-Type application/json;
            return 404 '{"message": "Not Found"}';
        }
    }
}