If Application errors exist i.e 

response.errors

will the resulting response (query) be cached? Any good reading material or resources on this topic?

You can control this with a cache header https://github.com/apollographql/apollo-android/blob/14926b288c545878a5227e71ed19f[…]ain/kotlin/com/apollographql/apollo/cache/ApolloCacheHeaders.kt

Wow! Thank you Łukasz!!!

So by default such responses will not be cached, but you can make it so that they are by adding this header. Example here: https://github.com/apollographql/apollo-android/blob/14926b288c545878a5227e71ed19f[…]on/src/test/java/com/apollographql/apollo/CacheHeadersTest.java 🙂