On Mon, Oct 07, 2019 at 12:07:29PM -0700, Roger Fischer wrote:
Hi there,
> is there a way in an NGINX HTTP Proxy to add a header to the response before
> it is cached?
>
> I would like to capture some information from the request and add it to the
> cached response, so that all clients getting the cached response receive that
> info.
If you do not find a more direct way (either by config or by coding),
then you could potentially add a new nginx server{} to modify the upstream
response as you want.
That is:
* main nginx does proxy_pass to new nginx, including your extra
information as proxy_set_header values. main nginx does proxy_cache
the response.
* new nginx does proxy_pass to upstream; does not proxy_cache the response;
and does add_header with your extra information so that that extra
information is in the response that goes to main nginx.
"new nginx" can be a server{} that listens on a loopback port, or on a
unix domain socket -- something that the world does not need to access
directly.
f
--
Francis Daly [email protected]
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