Nginx with a ICAP-like front-end

Alder Netw aldernetwork at
Sun Feb 26 05:24:51 UTC 2017

Hi I want to add an ICAP-like front-end validation server V with nginx.
The user scenario is like this:

The client will usually access the real app server R via nginx, but with
a validation server V, the client request will first pass to V, V will dp
validation and upon sucess the request will be forwarded to R and R will
return directly to clients; Upon failure, the request will be denied.

Is there any easy nginx config which can achieve this? Thanks,

- Alder
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