Network.Wai.Middleware.Cache

Documentation

cache

Arguments

:: CacheBackend cc ck cv

A cache backend

-> Middleware

cacheNoBody

Arguments

:: CacheBackend cc ck cv

A cache backend

-> Middleware

data CacheBackend cacheContainer cacheKey cacheVal

The data structure that should contains everything you need to create a cache backend

Constructors

CacheBackend

Fields

keyFromReq :: Request -> ByteString -> IO cacheKey

Get cacheKey from request and its body

toCache :: Request -> ByteString -> IO Bool

Function to check whether cache or not

addToCache :: cacheContainer -> cacheKey -> cacheVal -> IO ()

Adding to cache

actionOnCache :: Request -> Response -> IO ()

Action to perform before each caching request

actionOnCacheMiss :: Request -> Response -> IO ()

Action to perfom before each cache miss

responseToCacheVal :: Response -> IO cacheVal

Transform response to cached value

cacheValToResponse :: cacheVal -> Response

Transform cached value to response

lookupCache :: cacheContainer -> cacheKey -> IO (Maybe cacheVal)

cache lookup

cacheContainer :: cacheContainer

A cache container

responseToLBS :: Response -> IO ByteString

Helper for your cache backend