Nginx, how to allow IP:PORT requests

What’s the proper way to configure Nginx to allow IP:PORT requests like this:

//App is deployed on 8086
http://X.X.X.X:8086/?a=xxx&b=yyy&c=zzz ((http requests))
over TCP or UDP

//Another app is deployed on 5050
http://X.X.X.X:5050/postRequest (http requests)
over TCP or UDP

My nginx.conf

server {
        include /etc/nginx/conf.d/*.conf;
       listen         80 default_server;
       listen         [::]:80 default_server;
       server_name    _;
       root           /home/ubuntu/var/www/html;
       index          index.html index.htm default.html;
       access_log /etc/nginx/logs/access.log mycustomformat;

My PM2 have multiple applications deployed I want to access them by <IP>:<PORT>/request

Thanks