nginx-upstream-example

# With this, when you proxy_pass to all-apis, nginx automically will balance the requests between the servers.
upstream all-apis {
    server your-ip-here:5000;
    server another-ip-here:5000;
    server a-third-ip-here:5000;
}

server {

        listen 80;
        client_max_body_size 600M;

        server_name             yoursite.example.com;

	      root /yoursite/www;
	      index index.html;
	
	      location / {
	      }

        location /api {
                # other configs...
                proxy_pass http://all-apis; # passing the requests for one of the servers define above
	      }
}