úÎ(ñ'Ø     None243Instances of this class can be used as states by a S states to manage cookie-based user sessions. Instances must minimally implement  and ì. By default, the secret session key is taken from the environment variable "SESSION_KEY", or a default dummy key is used if the environment variable "ENV" is set to "development". You can override this behaviour by implementing the | method. If the controller state contains a dedicated field of type 'Maybe Session', a reasonable implementation would be: ÷data MyAppSettings = MyAppSettings { myAppSess :: Maybe Session, ...} instance HasSession MyAppSettings where getSession = myAppSess <$> controllerState setSession sess = do cs <- controllerState putState $ cs { myAppSess = sess }ÜReturns the secret session key. The default implementation uses the "SESSION_KEY" environment variable. If it is not present, and the "ENV" environment variable is set to "development", a dummy, hardcoded key is used.vReturns the cached session for the current request, or nothing if the session has not been set yet for this request. ÁStores a parsed or changed session for the remainder of the request.This is used both for cached a parsed session cookie as well as for serializing to the "Set-Cookie" header when responding.@Plaintext mapping of the session map. Both keys and values are s.A middleware wrapper around a } that sets the "Set-Cookie" header in the HTTP response if the Session is present, i.e. if it was accessed/modified by the .:Adds a "Set-Cookie" with the given key-value tuple to the p. The path set on the cookie is "/", meaning it applies to all routes on the domain, and no expiration is set.Returns the current , either from the * cache or by parsing the cookie from the Request using .Get and parse a  from the current Request."Parses and validates a serialized  given the secret. If the 5 is invalid (i.e. the hmac does not match), an empty  is returned.  Serializes a H by applying a sha256 hmac with the given secret key to the serialized  (using D), base64 encoding the result, and prepending it to the serialized . Lookup a key from the current Request s session. 'Insert or replace a key in the current Request s session. Remove a key from the current Request s session. Clear the entire . A trivial implementation if the # settings is just a Session store.          simple-session-0.10.0.0Web.Simple.Session HasSession sessionKey getSession setSessionSession withSession addCookiesession parseSession dumpSession sessionLookup sessionInsert sessionDelete sessionClearsimple-0.10.0.2Web.Simple.Controller Controllerbytestring-0.10.4.0Data.ByteString.Internal ByteString wai-3.0.2Network.Wai.InternalResponsesessionFromCookiehttp-types-0.8.5Network.HTTP.Types.URIrenderSimpleQuery$fHasSessionMaybecookie