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30 lines
834 B
Erlang
30 lines
834 B
Erlang
%% This module defines the ranges_provided callback
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%% and return something different depending on query string.
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-module(ranges_provided_h).
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-export([init/2]).
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-export([content_types_provided/2]).
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-export([ranges_provided/2]).
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-export([get_text_plain/2]).
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init(Req, State) ->
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{cowboy_rest, Req, State}.
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content_types_provided(Req, State) ->
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{[{{<<"text">>, <<"plain">>, []}, get_text_plain}], Req, State}.
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ranges_provided(Req=#{qs := <<"list">>}, State) ->
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{[
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{<<"bytes">>, get_text_plain_bytes},
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{<<"pages">>, get_text_plain_pages},
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{<<"chapters">>, get_text_plain_chapters}
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], Req, State};
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ranges_provided(Req=#{qs := <<"none">>}, State) ->
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{[], Req, State};
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%% Simulate the callback being missing in other cases.
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ranges_provided(_, _) ->
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no_call.
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get_text_plain(Req, State) ->
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{<<"This is REST!">>, Req, State}.
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