Nginx Reverse Proxy

appsaya.conf

server {
        listen 80;
        server_name domainsaya.com www.domainsaya.com;
        gzip on;
        client_max_body_size 50M;
        location / {
                proxy_pass http://localhost:8002;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection 'upgrade';
                proxy_set_header Host $host;
                proxy_cache_bypass $http_upgrade;
        }
}