[erlang-questions] Cowboy REST POST and custom status code

Max Grigoriev <>
Tue Jun 11 20:17:41 CEST 2013


How can I set status code in my REST POST handler.

Now I'm doing this

make_post(Req, State) ->
  lager:info("post"),
  Resp = cowboy_req:set_resp_body(<<"HELLO POST\n">>, Req),
  {ok, Resp3} = cowboy_req:reply(201, Resp),
  {true, Resp3, State}.

But I receive such errors:

1:43:10.510 [info] [#pbshare_logic_registration#<0.205.0>]
[handle_info#35] :Exit Logic from <0.204.0> Reason:
{function_clause,[{cowboy_req,reply,[204,[],<<>>,{http_req,#Port<0.6355>,ranch_tcp,keepalive,<0.204.0>,<<"POST">>,'HTTP/1.1',{{127,0,0,1},50024},<<"localhost">>,undefined,8080,<<"/rest/registration/make">>,[<<"make">>],<<>>,undefined,[],[{<<"user-agent">>,<<"curl/7.29.0">>},{<<"host">>,<<"localhost:8080">>},{<<"accept">>,<<"
*/*
">>},{<<"content-type">>,<<"application/json">>},{<<"content-length">>,<<"14">>}],[{<<"content-length">>,14},{<<"expect">>,undefined},{<<"content-length">>,14},{<<"content-type">>,{<<"application">>,<<"json">>,[]}},{<<"if-modified-since">>,undefined},{<<"if-none-match">>,undefined},{<<"if-unmodified-since">>,undefined},{<<"if-match">>,undefined},{<<"accept">>,[{{<<"
*">>,<<"*">>,[]},1000,[]}]}],undefined,[{charset,undefined},{media_type,{<<"application">>,<<"json">>,[]}}],done,undefined,<<>>,false,done,[],<<>>,undefined}],[{file,"src/cowboy_req.erl"},{line,948}]},{cowboy_rest,respond,3,[{file,"src/cowboy_rest.erl"},{line,1085}]},{cowboy_rest,upgrade,4,[{file,"src/cowboy_rest.erl"},{line,75}]},{cowboy_protocol,execute,4,[{file,"src/cowboy_protocol.erl"},{line,523}]}]}
21:43:10.510 [error] [Undefined#Undefined#emulator] [Undefined#Undefined]
:Error in process <0.204.0> with exit value:
{function_clause,[{cowboy_req,reply,[204,[],<<0
bytes>>,{http_req,#Port<0.6355>,ranch_tcp,keepalive,<0.204.0>,<<4
bytes>>,'HTTP/1.1',{{127,0,0,1},50024},<<9 bytes>>,undefined,8080,<<23
bytes>>,[<<4 bytes>>],<<0 bytes>>,undefined,[],[{<<10 bytes>>,<<11
bytes>>},{<<4 bytes>>,<<14 bytes>>},{<<6 bytes>>,<<3 bytes>>},{<<12
bytes>>,<<16 bytes>>},{<<14 bytes>>,<<2 bytes>>}],[{<<14 bytes>>,14},{<<6
bytes>>,undefined},{<<14 bytes>>,14},{<<12 bytes>>,{<<11 bytes>>,<<4
bytes>>,[]}},{<<17 bytes>>,undefined},{<<13 bytes>>,undefined},{<<19
bytes>>,undefined},{<<8 bytes>>,undefined...
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