server {
    listen 80;
    listen [::]:80;

    root /var/www/html;

    location /socket.io {
        include proxy_params;
        proxy_http_version 1.1;
        proxy_buffering off;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
        proxy_pass http://127.0.0.1:5555/socket.io;
    }

    location /libapi {
        include proxy_params;
        proxy_pass http://127.0.0.1:5555/;
    }

    location ~* .(js|css|ttf|ttc|otf|eot|woff|woff2)$ {
        add_header access-control-allow-origin "*";
        expires max;
    }

    location / {
        try_files $uri$args  $uri$args/ $uri $uri/ /index.html;
    }
}