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Make reply functions return Req

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This commit is contained in:
Loïc Hoguin 2016-08-10 17:15:02 +02:00
parent aa6f2ab5a4
commit e30d120bd8
16 changed files with 109 additions and 108 deletions
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23
examples/echo_post/src/toppage_handler.erl
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@ -5,24 +5,21 @@
-export([init/2]).
init(Req, Opts) ->
Method = cowboy_req:method(Req),
HasBody = cowboy_req:has_body(Req),
Req2 = maybe_echo(Method, HasBody, Req),
{ok, Req2, Opts}.
init(Req0, Opts) ->
Method = cowboy_req:method(Req0),
HasBody = cowboy_req:has_body(Req0),
Req = maybe_echo(Method, HasBody, Req0),
{ok, Req, Opts}.
maybe_echo(<<"POST">>, true, Req) ->
{ok, PostVals, Req2} = cowboy_req:read_urlencoded_body(Req),
maybe_echo(<<"POST">>, true, Req0) ->
{ok, PostVals, Req} = cowboy_req:read_urlencoded_body(Req0),
Echo = proplists:get_value(<<"echo">>, PostVals),
echo(Echo, Req2),
Req2;
echo(Echo, Req);
maybe_echo(<<"POST">>, false, Req) ->
cowboy_req:reply(400, [], <<"Missing body.">>, Req),
Req;
cowboy_req:reply(400, [], <<"Missing body.">>, Req);
maybe_echo(_, _, Req) ->
%% Method not allowed.
cowboy_req:reply(405, Req),
Req.
cowboy_req:reply(405, Req).
echo(undefined, Req) ->
cowboy_req:reply(400, [], <<"Missing echo parameter.">>, Req);