marcelog / erws Goto Github PK

First, thanks for publishing this. There is so little documentation on Cowboy (and few examples that work) that it's hard to get a leg up.

This is a minor nit, but for a neophyte it may be good to put in README or Makefile:

I needed to do a ./rebar get-deps before make would compile. Got unavailable dependencies.

I'm trying to run this example but it crashes.

Steps:

$ git clone git://github.com/marcelog/erws.git
Cloning into 'erws'...
remote: Counting objects: 43, done.
remote: Compressing objects: 100% (29/29), done.
remote: Total 43 (delta 12), reused 43 (delta 12)
Receiving objects: 100% (43/43), 118.93 KiB | 97 KiB/s, done.
Resolving deltas: 100% (12/12), done.

$ cd erws

$ ./rebar get-deps
==> erws (get-deps)
Pulling cowboy from {git,"git://github.com/extend/cowboy.git",{tag,"0.6.1"}}
Cloning into 'cowboy'...
Pulling lager from {git,"git://github.com/basho/lager.git","master"}
Cloning into 'lager'...
==> cowboy (get-deps)
==> lager (get-deps)
giovanni@thinkpad:~/Projects/erlang/erws$ make
./rebar compile
==> cowboy (compile)
Compiled src/cowboy_http_handler.erl
Compiled src/cowboy_http_websocket_handler.erl
Compiled src/cowboy_protocol.erl
Compiled src/cowboy_acceptor.erl
Compiled src/cowboy_app.erl
Compiled src/cowboy_dispatcher.erl
Compiled src/cowboy_sup.erl
Compiled src/cowboy_listener_sup.erl
Compiled src/cowboy_listener.erl
Compiled src/cowboy_http_websocket.erl
Compiled src/cowboy_clock.erl
Compiled src/cowboy_bstr.erl
Compiled src/cowboy_acceptors_sup.erl
Compiled src/cowboy.erl
Compiled src/cowboy_http.erl
Compiled src/cowboy_http_req.erl
Compiled src/cowboy_ssl_transport.erl
Compiled src/cowboy_cookies.erl
Compiled src/cowboy_multipart.erl
Compiled src/cowboy_requests_sup.erl
Compiled src/cowboy_http_static.erl
Compiled src/cowboy_client.erl
Compiled src/cowboy_tcp_transport.erl
Compiled src/cowboy_http_protocol.erl
Compiled src/cowboy_http_rest.erl
==> lager (compile)
Compiled src/lager_util.erl
Compiled src/lager_transform.erl
Compiled src/lager_sup.erl
Compiled src/lager_crash_log.erl
Compiled src/lager_trunc_io.erl
Compiled src/lager_console_backend.erl
Compiled src/error_logger_lager_h.erl
Compiled src/lager_msg.erl
Compiled src/lager_default_formatter.erl
Compiled src/lager_config.erl
Compiled src/lager_handler_watcher_sup.erl
Compiled src/lager_handler_watcher.erl
Compiled src/lager_app.erl
Compiled src/lager.erl
Compiled src/lager_stdlib.erl
Compiled src/lager_format.erl
Compiled src/lager_file_backend.erl
==> erws (compile)
Compiled src/erws_app.erl
Compiled src/erws_sup.erl
Compiled src/erws_handler.erl
cd rel && ../rebar generate && cd -
==> rel (generate)
/home/giovanni/Projects/erlang/erws
./rebar compile
==> cowboy (compile)
==> lager (compile)
==> erws (compile)

$ make run
rel/erws/bin/erws start

Crash dump was written to: erl_crash.dump
init terminating in do_boot ()

$ make runconsole
rel/erws/bin/erws console
Exec: /home/giovanni/Projects/erlang/erws/rel/erws/erts-5.9.2/bin/erlexec -boot /home/giovanni/Projects/erlang/erws/rel/erws/releases/1/erws -mode embedded -config /home/giovanni/Projects/erlang/erws/rel/erws/releases/1/sys.config -args_file /home/giovanni/Projects/erlang/erws/rel/erws/releases/1/vm.args -- console
Root: /home/giovanni/Projects/erlang/erws/rel/erws
Erlang R15B02 (erts-5.9.2) [source] [smp:4:4] [async-threads:0] [hipe] [kernel-poll:false]

14:56:16.733 [debug] Lager installed handler lager_console_backend into lager_event
14:56:16.734 [debug] Lager installed handler {lager_file_backend,"log/lager_error.log"} into lager_event
14:56:16.734 [debug] Lager installed handler {lager_file_backend,"log/lager_console.log"} into lager_event
14:56:16.735 [debug] Lager installed handler error_logger_lager_h into error_logger
14:56:16.736 [info] Application lager started on node '[email protected]'
14:56:16.737 [info] Application syntax_tools started on node '[email protected]'
14:56:16.737 [info] Application compiler started on node '[email protected]'
Eshell V5.9.2  (abort with ^G)
([email protected])1> 14:56:16.738 [error] CRASH REPORT Process <0.67.0> with 0 neighbours exited with reason: call to undefined function cowboy:start_listener(ami_ws_dispatcher, 100, cowboy_tcp_transport, [{port,10100}], cowboy_http_protocol, [{dispatch,[{'_',[{'_',erws_handler,[]}]}]}]) in application_master:init/4 line 138
{"Kernel pid terminated",application_controller,"{application_start_failure,erws,{bad_return,{{erws_app,start,[normal,[]]},{'EXIT',{undef,[{cowboy,start_listener,[ami_ws_dispatcher,100,cowboy_tcp_transport,[{port,10100}],cowboy_http_protocol,[{dispatch,[{'_',[{'_',erws_handler,[]}]}]}]],[]},{erws_app,start,2,[{file,[115,114,99,47,101,114,119,115,95,97,112,112,46,101,114,108]},{line,18}]},{application_master,start_it_old,4,[{file,[97,112,112,108,105,99,97,116,105,111,110,95,109,97,115,116,101,114,46,101,114,108]},{line,274}]}]}}}}}"}

Crash dump was written to: erl_crash.dump
Kernel pid terminated (application_controller) ({application_start_failure,erws,{bad_return,{{erws_app,start,[normal,[]]},{'EXIT',{undef,[{cowboy,start_listener,[ami_ws_dispatcher,100,cowboy_tcp_tra
make: *** [runconsole] Error 1

Hope you don't mind a few questions. I put them here so others may find the answers to.

Here's a console grab of a run (sorry so long). My question is why does it start so much stuff? I would only expect it to start one handler? I'm using 127.0.0.1 as my WS address if that matters.

Exec: /Users/a107908/Erlang/erws/rel/erws/erts-5.9.2/bin/erlexec -boot /Users/a107908/Erlang/erws/rel/erws/releases/1/erws -mode embedded -config /Users/a107908/Erlang/erws/rel/erws/releases/1/sys.config -args_file /Users/a107908/Erlang/erws/rel/erws/releases/1/vm.args -- console
Root: /Users/a107908/Erlang/erws/rel/erws
Erlang R15B02 (erts-5.9.2) [source] [64-bit] [smp:4:4] [async-threads:0] [hipe] [kernel-poll:false]

21:52:20.997 [debug] Lager installed handler lager_console_backend into lager_event
21:52:20.998 [debug] Lager installed handler {lager_file_backend,"log/lager_error.log"} into lager_event
21:52:20.998 [debug] Lager installed handler {lager_file_backend,"log/lager_console.log"} into lager_event
21:52:21.000 [debug] Lager installed handler error_logger_lager_h into error_logger
21:52:21.000 [info] Application lager started on node '[email protected]'
21:52:21.000 [debug] Supervisor cowboy_listener_sup started cowboy_listener:start_link(1024, [{dispatch,[{'',[{'',erws_handler,[]}]}]}]) at pid <0.76.0>
21:52:21.001 [debug] Supervisor cowboy_listener_sup started cowboy_requests_sup:start_link() at pid <0.77.0>
21:52:21.001 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.79.0>
21:52:21.002 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.80.0>
21:52:21.003 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.81.0>
21:52:21.003 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.82.0>
21:52:21.003 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.83.0>
Eshell V5.9.2 (abort with ^G)
([email protected])1> 21:52:21.003 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.84.0>
21:52:21.004 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.85.0>
21:52:21.004 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.86.0>
21:52:21.004 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.87.0>
21:52:21.004 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.88.0>
21:52:21.005 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.89.0>
21:52:21.005 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.90.0>
21:52:21.005 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.91.0>
21:52:21.005 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.92.0>
21:52:21.005 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.93.0>
21:52:21.006 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.94.0>
21:52:21.006 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.95.0>
21:52:21.006 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.96.0>
21:52:21.006 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.97.0>
21:52:21.006 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.98.0>
21:52:21.007 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.99.0>
21:52:21.007 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.100.0>
21:52:21.007 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.101.0>
21:52:21.007 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.102.0>
21:52:21.007 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.103.0>
21:52:21.008 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.104.0>
21:52:21.008 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.105.0>
21:52:21.008 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.106.0>
21:52:21.008 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.107.0>
21:52:21.008 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.108.0>
21:52:21.008 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.109.0>
21:52:21.009 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.110.0>
21:52:21.009 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.111.0>
21:52:21.009 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.112.0>
21:52:21.009 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.113.0>
21:52:21.009 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.114.0>
21:52:21.010 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.115.0>
21:52:21.010 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.116.0>
21:52:21.010 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.117.0>
21:52:21.010 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.118.0>
21:52:21.010 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.119.0>
21:52:21.011 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.120.0>
21:52:21.011 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.121.0>
21:52:21.011 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.122.0>
21:52:21.011 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.123.0>
21:52:21.011 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.124.0>
21:52:21.012 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.125.0>
21:52:21.012 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.126.0>
21:52:21.012 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.127.0>
21:52:21.012 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.128.0>
21:52:21.012 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.129.0>
21:52:21.012 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.130.0>
21:52:21.013 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.131.0>
21:52:21.013 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.132.0>
21:52:21.013 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.133.0>
21:52:21.013 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.134.0>
21:52:21.014 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.135.0>
21:52:21.014 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.136.0>
21:52:21.014 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.137.0>
21:52:21.014 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.138.0>
21:52:21.014 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.139.0>
21:52:21.014 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.140.0>
21:52:21.015 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.141.0>
21:52:21.015 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.142.0>
21:52:21.015 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.143.0>
21:52:21.015 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.144.0>
21:52:21.015 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.145.0>
21:52:21.016 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.146.0>
21:52:21.016 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.147.0>
21:52:21.016 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.148.0>
21:52:21.016 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.149.0>
21:52:21.016 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.150.0>
21:52:21.017 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.151.0>
21:52:21.017 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.152.0>
21:52:21.017 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.153.0>
21:52:21.017 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.154.0>
21:52:21.017 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.155.0>
21:52:21.018 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.156.0>
21:52:21.018 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.157.0>
21:52:21.018 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.158.0>
21:52:21.018 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.159.0>
21:52:21.018 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.160.0>
21:52:21.018 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.161.0>
21:52:21.019 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.162.0>
21:52:21.019 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.163.0>
21:52:21.019 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.164.0>
21:52:21.019 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.165.0>
21:52:21.019 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.166.0>
21:52:21.020 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.167.0>
21:52:21.020 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.168.0>
21:52:21.020 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.169.0>
21:52:21.020 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.170.0>
21:52:21.020 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.171.0>
21:52:21.021 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.172.0>
21:52:21.021 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.173.0>
21:52:21.021 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.174.0>
21:52:21.021 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.175.0>
21:52:21.021 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.176.0>
21:52:21.022 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.177.0>
21:52:21.022 [debug] Supervisor cowboy_acceptors_sup started cowboy_acceptor:start_link(#Port<0.869>, cowboy_tcp_transport, cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.178.0>
21:52:21.022 [debug] Supervisor cowboy_listener_sup started cowboy_acceptors_sup:start_link(100, cowboy_tcp_transport, [{port,10100}], cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}], <0.76.0>, <0.77.0>) at pid <0.78.0>
21:52:21.022 [debug] Supervisor cowboy_sup started cowboy_listener_sup:start_link(100, cowboy_tcp_transport, [{port,10100}], cowboy_http_protocol, [{dispatch,[{'',[{'',erws_handler,[]}]}]}]) at pid <0.75.0>
21:52:21.022 [info] Application erws started on node '[email protected]'
21:52:30.140 [debug] Request: {http_req,#Port<0.874>,cowboy_tcp_transport,keepalive,<0.184.0>,'GET',{1,1},undefined,[<<"127">>,<<"0">>,<<"0">>,<<"1">>],undefined,<<"127.0.0.1">>,10100,[],undefined,<<"/">>,undefined,<<>>,[],[{<<"Sec-Websocket-Extensions">>,<<"x-webkit-deflate-frame">>},{<<"Sec-Websocket-Version">>,<<"13">>},{<<"Sec-Websocket-Key">>,<<"/3NAqT5RRxt2YpJmCyki7w==">>},{<<"Origin">>,<<"null">>},{'Host',<<"127.0.0.1:10100">>},{'Connection',<<"Upgrade">>},{'Upgrade',<<"websocket">>}],[{'Connection',[<<"upgrade">>]}],undefined,[],waiting,<<>>,waiting,[],<<>>,undefined,{#Fun<cowboy_http.urldecode.2>,crash}}
21:52:30.141 [debug] New client
21:52:38.755 [debug] Got Data: <<"hi!">>

([email protected])1> q().
ok