NodeJS with NGINX, medium, nginx conf

api.conf

upstream api {
    server 127.0.0.1:3000;
    server 127.0.0.1:3001;
}

server {
    listen 8080;

    location / {
       proxy_pass http://api;
       proxy_set_header X-Real-IP $remote_addr;
       proxy_set_header Host $http_host;
       proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}