From ba14cf783820deb52ea0a810dd457ee179d7e30d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= Date: Wed, 21 Dec 2016 15:47:44 +0100 Subject: Add man pages for the reply functions --- doc/src/manual/cowboy_req.has_resp_header.asciidoc | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 doc/src/manual/cowboy_req.has_resp_header.asciidoc (limited to 'doc/src/manual/cowboy_req.has_resp_header.asciidoc') diff --git a/doc/src/manual/cowboy_req.has_resp_header.asciidoc b/doc/src/manual/cowboy_req.has_resp_header.asciidoc new file mode 100644 index 0000000..d6ada37 --- /dev/null +++ b/doc/src/manual/cowboy_req.has_resp_header.asciidoc @@ -0,0 +1,54 @@ += cowboy_req:has_resp_header(3) + +== Name + +cowboy_req:has_resp_header - Is the given response header set? + +== Description + +[source,erlang] +---- +has_resp_header(Name, Req :: cowboy_req:req()) -> boolean() + +Name :: binary() %% lowercase; case insensitive +---- + +Return whether the given response header has been set. + +The header name must be given as a lowercase binary string. +While header names are case insensitive, Cowboy requires them +to be given as lowercase to function properly. + +== Arguments + +Name:: + +Header name as a lowercase binary string. + +Req:: + +The Req object. + +== Return value + +A boolean indicating whether the given response header has been set. + +== Changelog + +* *1.0*: Function introduced. + +== Examples + +.Check whether the content-type header has been set +[source,erlang] +---- +false = cowboy_req:has_resp_header(<<"content-type">>, Req0), +Req = cowboy_req:set_resp_header(<<"content-type">>, <<"text/html">>, Req0), +true = cowboy_req:has_resp_header(<<"content-type">>, Req). +---- + +== See also + +link:man:cowboy_req(3)[cowboy_req(3)], +link:man:cowboy_req:set_resp_header(3)[cowboy_req:set_resp_header(3)], +link:man:cowboy_req:delete_resp_header(3)[cowboy_req:delete_resp_header(3)] -- cgit v1.2.3