I always filter solr request via a proxy (so solr itself is not exposed 
directly to the web). In that proxy, the query parameters can be broken down 
and filtered as desired (I examine authorities granted to a session to control 
even which indexes are being searched) before passing the modified url to solr. 
The coding of the proxy obviously depends on your application environment. We 
use java and Spring.

-----Original Message-----
From: Roopa Rao [mailto:roop...@gmail.com]
Sent: Friday, 23 February 2018 8:04 a.m.
To: solr-user@lucene.apache.org
Subject: Turn on/off query based on a url parameter


I want to enable or disable a SolrFeature in LTR based on efi parameter.

In simple the query should be executed only if a parameter is true.

Any examples or suggestion on how to accomplish this?

Functions queries examples are are using fields to give a value to. In my case 
I want to execute the query only if a url parameter is true

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