2 or more SITEs to 1 IP?

Question

Flask

Tell.
There are 2 pethon flaska projects.
each project runs on a local IP
127.0.0.1:5001
127.0.0.1:5000
Both projects have the same IP address Accessible from the external internet.
Access is available only on port 80. for site.com/ The
question is how OR what software to tell.
That when opening
site.com redirect locally to 127.0.0.1:5001
site1.com redirect locally to 127.0.0.1:5000.

OR maybe there are other methods to run multiple applications available from outside.

Answer 1

install nginx and proxy outside through proxy_pass

Answer 2

nginx proxy Do