Using Symfony2 as a dynamic View proxy

Here is my situation:

I am using Symfony2 as a middle layer here, when web client ask for a webpage to Symfony2(the layer), the layer is going to request single/multiple data/image to another backend remote resource server by http, combine them and return to web client.

And I also wish to hav开发者_JAVA百科e caching in order to reduce requests to the backend server. I found that the ESI has similar manner, however, could I include another server resource in Symfony2?

Is there any proper way to implement this? Thank you!

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It depends whether you have Varnish installed in front of Symfony2 or not. To be clear: Symfony2 ESI Proxy won't call any external resources, and will only call your app's controllers.

Varnish is able to handle the ESI from any sources.