Q:

Apache / NodeJS / Proxy with support for subdirectories

My Apache Config:
<VirtualHost *:80>
    ProxyPreserveHost On
    ProxyRequests Off
    ServerName mydomain.com
    ProxyPass / http://localhost:3000/
    ProxyPassReverse / http://localhost:3000/
</VirtualHost>

My NodeJS:
var app = require('express')();
var http = require('http').Server(app);

app.get('/', function(req, res){
  res.sendFile(__dirname + '/index.html');
});

http.listen(3000, function(){
  console.log('Listening on *:3000');
});

This currently works when connecting to mydomain.com: it will successfully return index.html. My problem occurs when I try to connect to mydomain.com/foo. Ideally this would simply go to http://localhost:3000/foo but instead it says "Cannot GET /foo".
How would I redirect mydomain.com/* to the respective path in my NodeJS project directory without tons of:
app.get('/foo', function(req, res){
  res.sendFile(__dirname + '/foo');
});

app.get('/bar', function(req, res){
  res.sendFile(__dirname + '/bar');
});

app.get('/foo/bar', function(req, res){
  res.sendFile(__dirname + '/foo/bar');
});

?

A:

You should use the static files serving module with express : 
http://expressjs.com/starter/static-files.html
In your case, something like that : 
app.use(express.static(__dirname, {
  index: 'index.html'
}))

