GitHub repository: opscode/chef_wm
Primary language: Erlang
Description: The "wm" stands for webmachine. This OTP application contains the core of the erchef REST API implemented on top of the   Webmachine toolkit. The URL routing that matches URLs with Erlang   modules handling requests for those URLs is defined in   `priv/dispatch.conf`. The README file in that repo has a more   detailed overview.