Below is the API for the OCaml standard library. It's directly copied over from the OCaml Manual, formatted to the Reason syntax and styled accordingly. The API docs are work-in-progress; we'll be polishing these gradually!
If you're targeting JavaScript, the API docs for BuckleScript includes all of below, plus JS-specific APIs.
sig
val lseek : Unix.file_descr -> int64 -> Unix.seek_command -> int64
val truncate : string -> int64 -> unit
val ftruncate : Unix.file_descr -> int64 -> unit
type stats = {
st_dev : int;
st_ino : int;
st_kind : Unix.file_kind;
st_perm : Unix.file_perm;
st_nlink : int;
st_uid : int;
st_gid : int;
st_rdev : int;
st_size : int64;
st_atime : float;
st_mtime : float;
st_ctime : float;
}
val stat : string -> Unix.LargeFile.stats
val lstat : string -> Unix.LargeFile.stats
val fstat : Unix.file_descr -> Unix.LargeFile.stats
end