Can Polly's Caching Policy cache selectively based on response? (eg cache only 200ok http responses)

Is Polly able to cache selectively based off of parameters like response code, response headers, etc

I could not find any documentation on what types of responses Polly decides to cache, or whether it’s possible to cache selectively based on attributes like the response code. Right now a workaround I’ve tried is using ResultTtl to vary the ttl based on response code, and setting a very short ttl for non 200 responses.

Is there any good way to have the cache policy ignore all responses that are not 200?

[reisenberger]

@lindstromhenrik You can convert MemoryCacheProvider to a version generic in TResult using

myMemoryCacheProvider.AsyncFor<TResult>
// or (for sync usage)
myMemoryCacheProvider.For<TResult>

as described in the MemoryCacheProvider documentation.

[lindstromhenrik]

As ResultTtl<TResult> : ITtlStrategy<TResult> and ITtlStrategy<TResult> does not extend ITtlStrategy it may be worth to point out that the cache provider need to implement IAsyncCacheProvider<TResult>, i.e it is incompatible with for example the MemoryCacheProvider.