CoHTTP is an OCaml library for creating HTTP daemons. It has a portable HTTP parser, and implementations using various asynchronous programming libraries:
Cohttp_lwt_unixuses the Lwt library, and specifically the UNIX bindings.
Cohttp_asyncuses the Async library.
Cohttp_lwtexposes an OS-independent Lwt interface, which is used by the the Mirage interface to generate standalone microkernels (see the mirage-http repository).
You can implement other targets using the parser very easily. Look at the
lib/IO.mli signature and implement that in the desired backend.
You can activate some runtime debugging by setting
COHTTP_DEBUG to any
value, and all requests and responses will be written to stderr.
For build requirements, please see the
_oasis file, or use OPAM to install
it from http://github.com/ocaml/opam.
If you install the Async dependency, then a
cohttp-server binary will also be
built and installed that acts in a similar fashion to the Python
SimpleHTTPServer. Just run
cohttp-server in a directory and it will
open up a local port and serve the files over HTTP.