[Cppcms-users] Front-end http server without upload buffering

[Julian P. <ju...@wh...>]

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Hallo,

I want to use a cppcms application in a productional setting. As it's
discouraged to use cppcms's http API directly, I need a
fast/scgi-capable, lightweight webserver that will handle the
HTTP-Requests, serve static files and forward the requests to cppcms.
The problem that occured is, that two of the most prominent webservers,
lighttpd and nginx, need to buffer POST uploads completly before they
are passed to the fastcgi backend, and both projects don't want to
implement a direct passthrough for the POST bodies.
For me this is a problem, because the named cppcms application is a
firmware upload server, which has to process the firmware file during
upload because the flash memory on the device this server runs on is
very limited, and if I understand it right, an upload would take at
least 2x the size of the firmware file being uploaded, because
lighttpd/nginx will store it, then pass it to the cppcms fastcgi backend
where cppcms stores it to a temporary file again. So for a file of e.g.
120M we would need at least 240M, but the drive has only the 120M for
one copy of the firmware file.
Do you know of any lightweight webserver that will allow to passthrough
the body to cppcms without buffering? Or is the only solution to run
cppcms in standalone mode as its own webserver? Where'd be the risks to
do so?

Thanks for your answers,
Julian
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