CachedResponseHandler

CachedResponseHandler

A type that handles whether the data task should store the HTTP response in the cache.

public protocol CachedResponseHandler

Requirements

dataTask(_:​willCacheResponse:​completion:​)

Determines whether the HTTP response should be stored in the cache.

func dataTask(_ task:​ URLSessionDataTask, willCacheResponse response:​ CachedURLResponse, completion:​ @escaping (CachedURLResponse?) -> Void)

The completion closure should be passed one of three possible options:​

1. The cached response provided by the server (this is the most common use case).
2. A modified version of the cached response (you may want to modify it in some way before caching).
3. A nil value to prevent the cached response from being stored in the cache.

Parameters

• task:​ The data task whose request resulted in the cached response.
• response:​ The cached response to potentially store in the cache.
• completion:​ The closure to execute containing cached response, a modified response, or nil.