Apache 2.4 redirect https to another port - apache

Question

I'm a rookie, but I've struggled with this for some time and I am definitely doing something wrong.
We use Apache 2.4 as the front of our internal web pages.
When I try to forward a request to a port other than 80, it goes crazy and is redirected several times
http://demos.company.com/demos.company.com/demos.company.com/demos.company.com/demos.company.com/demos.company.com/demos.company.com/[...]/demos.company.com/WebApplicationFail
httpd.conf:
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule rewrite_module modules/mod_rewrite.so
<VirtualHost *:80>
RewriteEngine on
RewriteCond %{HTTPS} !on
RewriteRule ^(.*) %{HTTP_HOST}%{REQUEST_URI} [R=301,L]
</VirtualHost>
<VirtualHost *:443>
SSLEngine on
SSLCertificateFile "C:/Program Files/Apache24/conf/ssl/company.crt"
SSLCertificateKeyFile "C:/Program Files/Apache24/conf/ssl/company.key"
SSLCertificateChainFile "C:/Program Files/Apache24/conf/ssl/CA.pem"
# Proxy configuration
ProxyPreserveHost On
ProxyRequests Off
ServerName demos.company.com
ProxyPass /WebApplicationOK http://10.0.0.160/WebApplicationOK
ProxyPassReverse /WebApplicationOK http://10.0.0.160/WebApplicationOK
ProxyPass /WebApplicationFailRoute http://10.0.0.125:8000/WebApplicationFail
ProxyPassReverse /WebApplicationFailRoute http://10.0.0.125:8000/WebApplicationFail
</VirtualHost>
We need to maintain the redirection of every http request to https.
If possible, we need that the Internet address "https://demos.company.com/ThisContext" show the intranet web "http://10.0.0.125:8000/OtherContext".
Thanks in advance.

Answer 1

That's the problem with adding complex directives for trivial tasks.
You have a Virtualhost which uses port 80, why even check for SSL?, everything it will receive will not be SSL.
Also the rewrite directive is missing the scheme.
So just:
RewriteRule ^/(.*) https://%{HTTP_HOST}/$1 [R,L]
If you don't need to use variables, for variable host names I would go even simpler:
Redirect / https://whateverhost.example.com/
Rule to success in httpd: Go always with the most simple option.

Answer 2

I've got it, it simple actually. You just only add those lines for redirection from below to your ssl.conf I guess
<VirtualHost *:443>
ServerAdmin webmaster#localhost
ServerName XXXX.ddns.net
# These are your SSL settings; your responsibility
SSLCertificateFile /etc/letsencrypt/live/XXXX.ddns.net/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/XXXX.ddns.net/privkey.pem
Include /etc/letsencrypt/options-ssl-apache.conf
# Your document root; where the JavaScript application lives
DocumentRoot /var/www/html
<Directory /var/www/html/ >
Options -Indexes +FollowSymLinks -MultiViews
AllowOverride None
Order Allow,Deny
Allow From All
</Directory>
# Reverse proxy settings for API (custom redirection https to specific port)
ProxyRequests Off
ProxyPreserveHost On
<Location /api >
ProxyPass http://127.0.0.1:3000/api
ProxyPassReverse http://127.0.0.1:3000/api
</Location>
</VirtualHost>