Why Adobe moved client libs from etc to apps?

[sathishreddy]

Hi all,

Why adobe moved client libs from etc to apps?

And we are not able to call client libs from apps directly, again we calling via etc/design. Why they defined like that? 

Thanks,

Satish

[Nupur_Jain]

Hi @sathishreddy 

The reasons for allowing flexibility to allow clientlibs from /etc to /apps is given in the adobe documentation itself. Refer https://docs.adobe.com/content/help/en/experience-manager-65/developing/introduction/clientlibs.html...

• This is to locate the client libraries near the other scripts, which are generally found below /apps and /libs
• In order to better isolate code from content and configuration, it is recommended to locate client libraries under /apps and expose them via /etc.clientlibs by leveraging the allowProxy property

• Before when we used to declare clientlibs in /etc. We had to allow /etc paths access to end user as well as if we wanted to keep js/css under the component. we had to either embed our original clientlibs in site clientlibs in /etc or directly define js/css in /etc clientlibs. This proxy clientlibs does not require this two way step process. we can now easily keep component specific js/css files near component and make it available to end users using allowProxy property.

Hope it helps!

Thanks!

Nupur

[aemmarc · Accepted solution]

Long story short : Today in 2020 AEM is available as SaaS offering. To transform AEM from a monolithic Java application to something that runs inside orchestration containers required a series of repository restructurings that started in AEM 6.4 and furthered in 6.5.  Within this containered-AEM-world there is a concept of immutable and mutable nodes. Eg /etc is considered immutable, thus required forcing customers to migrate their stuff out of these paths to /apps (mutable).

Hope that helps your understanding. 

[Jörg_Hoh]

ah, not really /apps is immutable (no changes during runtime), and /etc is deprecated, because there was no policy at all, so both mutable and immutable data was dropped there. So from a product point of view /etc will go away over time..

[aemmarc]

Thanks for expanding on my understanding Jörg.