Add a simple multipart upload example

examples/upload/src/upload_handler.erl

@@ -0,0 +1,21 @@
+-module(upload_handler).
+-behaviour(cowboy_http_handler).
+
+-export([init/3]).
+-export([handle/2]).
+-export([terminate/3]).
+
+init(_, Req, _Opts) ->
+	{ok, Req, undefined}.
+
+handle(Req, State) ->
+	{ok, Headers, Req2} = cowboy_req:part(Req),
+	{ok, Data, Req3} = cowboy_req:part_body(Req2),
+	{file, <<"inputfile">>, Filename, ContentType, _TE}
+		= cow_multipart:form_data(Headers),
+	io:format("Received file ~p of content-type ~p as follow:~n~p~n~n",
+		[Filename, ContentType, Data]),
+	{ok, Req3, State}.
+
+terminate(_Reason, _Req, _State) ->
+	ok.