Copas

Copas is a dispatcher based on coroutines that can be used by
TCP/IP servers. It uses LuaSocket as the interface with the
TCP/IP stack. A server registered with Copas should provide a
handler for requests and use Copas socket functions to send
the response. Copas loops through requests and invokes the
corresponding handlers. For a full implementation of a Copas
HTTP server you can refer to Xavante as an example.