anchor.diff:  			{error, 400}
   	end.
   
  -%%----------------------------------------------------------------------
  -%%  internal functions
  -%%----------------------------------------------------------------------
  -
  --spec get_params() -> {Port :: integer(), Address :: string(), Directory :: string(),
  -		Group :: string()}.
  +-spec get_params() -> Result
  +	when
  +		Result :: {Port, Address, Directory, Group},
  +		Port :: integer(),
  +		Address :: string(),
  +		Directory :: string(),
  +		Group :: string().
  +%% @doc Get {@link //inets/httpd. httpd} configuration parameters.
   get_params() ->
   	{_, _, Info} = lists:keyfind(httpd, 1, inets:services_info()),
   	{_, Port} = lists:keyfind(port, 1, Info),
  
positive.code: -copyright('Copyright (c) 2016 - 2017 SigScale Global Inc.').
  
  -export([content_types_accepted/0, content_types_provided/0, get_params/0,
  		get_user/2, get_users/2, post_user/1, put_user/3, patch_user/4,
  		delete_user/1]).
  
  -include_lib("inets/include/mod_auth.hrl").
  -include("ocs.hrl").
  
negative.code: 				end
  			of
  				{SortedEvents, _NewQuery} ->
  					JsonObj = query_page1(lists:map(fun user/1, SortedEvents), Filters, []),
  					JsonArray = {array, JsonObj},
  					Body = mochijson:encode(JsonArray),
  					Headers = [{content_type, "application/json"},
  