server {
    listen 3000;
    server_name localhost;

    root /usr/share/nginx/html;
    index index.html;

    # Gzip Compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied expired no-cache no-store private auth;
    gzip_types text/plain text/css text/xml text/javascript application/x-javascript application/xml application/json image/svg+xml;

    # Cache control for static assets
    location ~* \.(?:css|js|jpg|jpeg|gif|png|ico|cur|gz|svg|svgz|mp4|ogg|ogv|webm|htc)$ {
        expires 1y;
        access_log off;
        add_header Cache-Control "public";
    }

    # Disable caching for appsettings.json so changes take effect immediately
    location = /appsettings.json {
        expires -1;
        add_header Cache-Control "no-store, no-cache, must-revalidate, post-check=0, pre-check=0";
    }

    # HTML5 SPA History Mode Support
    location / {
        try_files $uri $uri/ /index.html;
    }

    error_page 500 502 503 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }
}