-module(rest_patch_resource).
-export([init/3, allowed_methods/2, content_types_provided/2, get_text_plain/2,
content_types_accepted/2, patch_text_plain/2]).
init(_Transport, _Req, _Opts) ->
{upgrade, protocol, cowboy_rest}.
allowed_methods(Req, State) ->
{[<<"HEAD">>, <<"GET">>, <<"PATCH">>], Req, State}.
content_types_provided(Req, State) ->
{[{{<<"text">>, <<"plain">>, []}, get_text_plain}], Req, State}.
get_text_plain(Req, State) ->
{<<"This is REST!">>, Req, State}.
content_types_accepted(Req, State) ->
case cowboy_req:method(Req) of
{<<"PATCH">>, Req0} ->
{[{{<<"text">>, <<"plain">>, []}, patch_text_plain}], Req0, State};
{_, Req0} ->
{[], Req0, State}
end.
patch_text_plain(Req, State) ->
case cowboy_req:body(Req) of
{ok, <<"halt">>, Req0} ->
{ok, Req1} = cowboy_req:reply(400, Req0),
{halt, Req1, State};
{ok, <<"false">>, Req0} ->
{false, Req0, State};
{ok, _Body, Req0} ->
{true, Req0, State}
end.
