upstream transfa_app {
    server 127.0.0.1:3001;
    keepalive 32;
}

server {
    listen 80;
    server_name _;

    # Large file uploads
    client_max_body_size 100G;
    client_body_timeout 300s;
    proxy_read_timeout 300s;
    proxy_send_timeout 300s;

    keepalive_timeout 65s;

    # Gzip for API and static assets
    gzip on;
    gzip_types application/json text/plain text/css application/javascript;

    location / {
        proxy_pass http://transfa_app;
        proxy_http_version 1.1;
        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;
        proxy_set_header Connection '';
        # Disable buffering for streaming uploads/downloads
        proxy_buffering off;
        proxy_request_buffering off;
    }
}