florianholzapfel/express-restify-mongoose — pull request #8 by 6eDesign (2013-06-28 05:31:47+00:00)
Title: Added RegExp support for querying database keys.  

It's just a couple lines but they've proven rather helpful on my end. I have implemented this with a '~' trigger:

http://localhost:3000/api/v1/somecollection/somefieldname=~myregex

Have a good day.