Add cowboy_req:scheme/1

src/cowboy_req.erl

@@ -20,6 +20,7 @@
 -export([method/1]).
 -export([version/1]).
 -export([peer/1]).
+-export([scheme/1]).
 -export([host/1]).
 -export([host_info/1]).
 -export([port/1]).
@@ -198,6 +199,10 @@ version(#{version := Version}) ->
 peer(#{peer := Peer}) ->
 	Peer.
 
+-spec scheme(req()) -> binary().
+scheme(#{scheme := Scheme}) ->
+	Scheme.
+
 -spec host(req()) -> binary().
 host(#{host := Host}) ->
 	Host.