How can I read the directory listing of a Dropbox folder?

So far I've managed to read and write files onto dropbox, but I feel I'm missing something to read the contents of a folder on dropbox.

I thought the input node supplied with a folder name might list its contents but that didn't work.

Is it just not possible? Otherwise I would have to keep a list of files I've uploaded to dropbox?!?

Best wishes,
S