Nginx Express Configuration

nginx.conf

server {
    access_log /var/log/nginx/access.log upstream_time;

    listen 8080;
    server_name _;

    location / {
        # default port, could be changed if you use next with custom server
        proxy_pass http://localhost:4000;

        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;
    }
}