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f673e191b3
This allows giving custom metadata to the metrics stream handler. This can be useful to for example provide the name of the module handling the request which is only known after routing. But any user data is allowed. When called multiple times the user data maps are merged.
40 lines
1.9 KiB
Erlang
40 lines
1.9 KiB
Erlang
%% This module sets options dynamically and performs
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%% some related relevant operation for testing the change.
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-module(set_options_h).
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-export([init/2]).
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init(Req, State) ->
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set_options(cowboy_req:binding(key, Req), Req, State).
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set_options(<<"chunked_false">>, Req0, State) ->
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%% @todo This should be replaced by a cowboy_req:cast/cowboy_stream:cast.
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#{pid := Pid, streamid := StreamID} = Req0,
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Pid ! {{Pid, StreamID}, {set_options, #{chunked => false}}},
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Req = cowboy_req:stream_reply(200, Req0),
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cowboy_req:stream_body(<<0:8000000>>, fin, Req),
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{ok, Req, State};
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set_options(<<"chunked_false_ignored">>, Req0, State) ->
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%% @todo This should be replaced by a cowboy_req:cast/cowboy_stream:cast.
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#{pid := Pid, streamid := StreamID} = Req0,
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Pid ! {{Pid, StreamID}, {set_options, #{chunked => false}}},
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Req = cowboy_req:reply(200, #{}, <<"Hello world!">>, Req0),
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{ok, Req, State};
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set_options(<<"idle_timeout_short">>, Req0, State) ->
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%% @todo This should be replaced by a cowboy_req:cast/cowboy_stream:cast.
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#{pid := Pid, streamid := StreamID} = Req0,
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Pid ! {{Pid, StreamID}, {set_options, #{idle_timeout => 500}}},
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{_, Body, Req} = cowboy_req:read_body(Req0),
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{ok, cowboy_req:reply(200, #{}, Body, Req), State};
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set_options(<<"idle_timeout_long">>, Req0, State) ->
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%% @todo This should be replaced by a cowboy_req:cast/cowboy_stream:cast.
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#{pid := Pid, streamid := StreamID} = Req0,
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Pid ! {{Pid, StreamID}, {set_options, #{idle_timeout => 60000}}},
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{_, Body, Req} = cowboy_req:read_body(Req0),
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{ok, cowboy_req:reply(200, #{}, Body, Req), State};
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set_options(<<"metrics_user_data">>, Req, State) ->
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%% @todo This should be replaced by a cowboy_req:cast/cowboy_stream:cast.
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#{pid := Pid, streamid := StreamID} = Req,
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Pid ! {{Pid, StreamID}, {set_options, #{metrics_user_data => #{handler => ?MODULE}}}},
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{ok, cowboy_req:reply(200, #{}, <<"Hello world!">>, Req), State}.
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