----- Michał Jaszczyk <jasiu85@gmail.com> wrote:
> Hey,
>
> I work at a company where we use Nginx a lot and so far we are very
> happy with it :). Now we want to add another feature to our website
> and long story short we need to forward files that users send by POST
> requests to backends. Now I know that there exists upload module for
> Nginx, but it is a little bit not suitable for us because we would
> like not to store request body on disk, but instead immediately
> forward it to backend, even without storing the request body in
> memory, i.e. initiate request to backend as soon as the request to
> Nginx is started. Another gotcha is that the backend has to be chosen
> in a way that might require sending one more request to determine the
> backend.

[...]

> What are your thoughts about this problem? Any comment or hint will be
> appreciated :).

As far as I know nginx cannot pipe a request into upstream, since probably there was no intention initially to do like this. Moreover it is not trivial to implement from my point of view.

--
Regards,
Valery Kholodkov