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%% Feel free to use, reuse and abuse the code in this file.
-module(http_handler_stream_body).
-behaviour(cowboy_http_handler).
-export([init/3, handle/2, terminate/2]).
-record(state, {headers, body, reply}).
init({_Transport, http}, Req, Opts) ->
Headers = proplists:get_value(headers, Opts, []),
Body = proplists:get_value(body, Opts, "http_handler_stream_body"),
Reply = proplists:get_value(reply, Opts),
{ok, Req, #state{headers=Headers, body=Body, reply=Reply}}.
handle(Req, State=#state{headers=_Headers, body=Body, reply=set_resp}) ->
{ok, Transport, Socket} = cowboy_http_req:transport(Req),
SFun = fun() -> Transport:send(Socket, Body), sent end,
SLen = iolist_size(Body),
{ok, Req2} = cowboy_http_req:set_resp_body_fun(SLen, SFun, Req),
{ok, Req3} = cowboy_http_req:reply(200, Req2),
{ok, Req3, State}.
terminate(_Req, _State) ->
ok.
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