I am trying to make this application FIX protocol
I start the Erlang shell using erl -pa ./ebin -pa ebin ./deps/*/ebin
. And run the application like this: application:start(fix)
. After that I invoke "start_listener" function like this: fix:start_listener()
. As a result this mistake appears:
exception error: no match of right hand side value
{error,
{{shutdown,
{failed_to_start_child,ranch_acceptors_sup,
badarg}},
{child,undefined,
{ranch_listener_sup,fix_listener},
{ranch_listener_sup,start_link,
[fix_listener,10,ranch_tcp,
[{port,[8501]}],
fix_server,[]]},
permanent,5000,supervisor,
[ranch_listener_sup]}}}
in function fix:start_listener/0 (src/fix.erl, line 21)
What does it all mean? And how to fix this mistake?
My code is:
`-module(fix).
-author('Max Lapshin <max@maxidoors.ru>').
-include("log.hrl").
% -include("../include/admin.hrl").
-include("../include/business.hrl").
-compile(export_all).
%% @doc Start acceptor with `ranch' on port, specified in application environment under fix_port%%
-spec start_listener() -> {ok, pid()}.
start_listener() ->
application:start(ranch),
Spec = ranch:child_spec(fix_listener, 10,
ranch_tcp, [{port, fix:get_value(fix_port)}],
fix_server, []
),
{ok, Pid} = supervisor:start_child(fix_sup, Spec),
error_logger:info_msg("Starting FIX server on port ~p~n",[fix:get_value(fix_port)]),
{ok, Pid}.
` This is a piece of code that shows a mistake.
This is incorrect:
[{port,[8501]}]
Port value must be an integer. Your fix:get_value function returns list [8501] instead 8501 and you get this badarg error.
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