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!

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.