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%% Feel free to use, reuse and abuse the code in this file.
-module(http_multipart_stream).
-export([init/2]).
init(Req, Opts) ->
Req2 = multipart(Req),
{ok, cowboy_req:reply(200, Req2), Opts}.
multipart(Req) ->
case cowboy_req:part(Req) of
{ok, [{<<"content-length">>, BinLength}], Req2} ->
Length = list_to_integer(binary_to_list(BinLength)),
{Length, Req3} = stream_body(Req2, 0),
multipart(Req3);
{done, Req2} ->
Req2
end.
stream_body(Req, N) ->
case cowboy_req:part_body(Req) of
{ok, Data, Req2} ->
{N + byte_size(Data), Req2};
{more, Data, Req2} ->
stream_body(Req2, N + byte_size(Data))
end.
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