Function handleCache
Processes header tags in a request and writes responses given on requested cache status.
bool handleCache
(
scope HTTPServerRequest req,
scope HTTPServerResponse res,
ETag etag,
std .datetime .systime .SysTime last_modified,
string cache_control = null,
core .time .Duration max_age = zero()
) @safe;
Parameters
Name | Description |
---|---|
req | the client request used to determine cache control flow. |
res | the response to write cache headers to. |
etag | if set to anything except .init, adds a Etag header to the response and enables handling of If-Match and If-None-Match cache control request headers. |
last_modified | if set to anything except .init, adds a Last-Modified header to the response and enables handling of If-Modified-Since and If-Unmodified-Since cache control request headers. |
cache_control | if set, adds or modifies the Cache-Control header in the response to this string. Might get an additional max-age value appended if max_age is set. |
max_age | optional duration to set the Expires header and Cache-Control max-age part to. (if no existing max-age= part is given in the cache_control parameter) |
Returns
true
if the cache was already handled and no further response must be sent or false
if a response must be sent.