How to allow a query parameter to be cached at Akamai in dispatcher configuration

Question

We have the AMS OOB farm file with below dispatcher configuration

And our custom project farm file with below configuration

It is commented and not used.

I have a requirement to ignore "imWidth" query parameter from the url's , so that images are cached at Akamai and not hitting dispatcher. Currently, i can see from logs, these requests are hitting dispatcher and publisher, though it is expected to serve from Akamai

e.g url -

In this case, what is the rule is need to add in my custom farm file overriding '/ignoreUrlParams'

arunpatidar · Accepted Answer

Hi @p_v_nair
You need to update rules in your project farm as you mentioned:

/0001 { /glob "*" /type "deny" }
/0002 { /glob "imWidth" /type "allow" }

At Akamai - if your cache key is uri then for every unique request there will be a separated cache key. If this works for you then you don't need to anything but if you think there can be many unique request due to "imWidth" then you need to ask Akamai to update the cache key rule to remove query parameters.

DPrakashRaj · Answer

Dispatcher configs can only control the caching on dispatcher. It won’t force the Akamai to cache. You need to setup the rule for caching query parameters images on Akamai with Akamai configs changes and not on dispatcher.

to cache the query parameters request on aem dispatcher please visit https://docs.mktossl.com/docs/experience-manager-learn/ams/dispatcher/understanding-cache.html?lang=en

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