Need Assistance in Configuring Varnish to Retain and Ignore Unique Parameter in Request URL while caching

[Uday Kumar]

Hello,

We would like to configure varnish to create unique parameter such that its
value should be of 20 characters (alphanumeric characters that are URL
safe).

On Wed, May 31, 2023, 13:34 Guillaume Quintard <guillaume.quintard at gmail.com>
wrote:

> >  Could you please also suggest how to configure Varnish so that Varnish
> can add Unique Parameter by itself??
>
> We'd need more context, is there any kind of check that tomcat does on
> this parameter, does it need to have a specific length, or match a regex?
> If we know that, we can have Varnish check the user request to make sure
> it's valid, and potentially generate its own parameter.
>
> But it all depends on what Tomcat expects from that parameter.
>
> --
> Guillaume Quintard
>
>
> On Tue, May 30, 2023 at 11:18 PM Uday Kumar <uday.polu at indiamart.com>
> wrote:
>
>> Hello Guillaume,
>>
>> Thank you so much for your help, will try modifying vcl_hash as suggested!
>>
>>
>>> Last note: it would probably be better if the tomcat server didn't need
>>> that unique parameter, or at the very least, if Varnish could just add
>>> it itself rather than relying on client information as you're caching
>>> something public using something that was user-specific, so there's
>>> potential for snafus here.
>>>
>>
>>  Could you please also suggest how to configure Varnish so that Varnish
>> can add Unique Parameter by itself??
>>
>
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