Reverse proxy: how to map a domain.tld to a local host port

[Tom Browder <tom.browder@xxxxxxxxx>]

I want to map multiple virtual hosts (https://domain.tld) to a backend server app. All the recipes I see do something like this:

ProxyPreserveHost  On

ProxyPass                 "/"        "http://localhost:8000"

ProxyPassReverse   "/"        "http://localhost:8000"

Does that mean the single app on the localhost port 8000 has to take care of all domains?

Is there any way to map each unique domain.tld to a different app at a unique port just for that domain.tld?

Thanks.

-Tom