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conduit -- an OCaml network connection establishment library

The conduit library takes care of establishing and listening for
TCP and SSL/TLS connections for the Lwt and Async libraries.

The reason this library exists is to provide a degree of abstraction
from the precise SSL library used, since there are a variety of ways
to bind to a library (e.g. the C FFI, or the Ctypes library), as well
as well as which library is used (just OpenSSL for now).

By default, OpenSSL is used as the preferred connection library, but
you can force the use of the pure OCaml TLS stack by setting the
environment variable CONDUIT_TLS=native when starting your program.

The opam packages available are:

  • conduit: the main Conduit module

  • conduit-lwt: the portable Lwt implementation

  • conduit-lwt-unix: the Lwt/Unix implementation

  • conduit-async the Jane Street Async implementation

  • mirage-conduit: the MirageOS compatible implementation


Some of the Lwt_unix-based modules use a non-empty CONDUIT_DEBUG
environment variable to output debugging information to standard error.
Just set this variable when running the program to see what URIs
are being resolved to.

Further Informartion