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22 lines
591 B
Erlang
22 lines
591 B
Erlang
%% Feel free to use, reuse and abuse the code in this file.
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%% @doc GET echo handler.
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-module(toppage_handler).
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-export([init/2]).
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init(Req, Opts) ->
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Method = cowboy_req:method(Req),
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#{echo := Echo} = cowboy_req:match_qs([echo], Req),
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Req2 = echo(Method, Echo, Req),
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{ok, Req2, Opts}.
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echo(<<"GET">>, undefined, Req) ->
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cowboy_req:reply(400, [], <<"Missing echo parameter.">>, Req);
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echo(<<"GET">>, Echo, Req) ->
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cowboy_req:reply(200, [
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{<<"content-type">>, <<"text/plain; charset=utf-8">>}
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], Echo, Req);
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echo(_, _, Req) ->
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%% Method not allowed.
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cowboy_req:reply(405, Req).
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