Emmanuel, in RESTBase we are exposing an ETag header for each 'render' revision of the HTML, which you will be able to use with an If-None-Match request header to conditionally retrieve a newer version of the page. ETA for the public API is currently January.
Gabriel On Sat, Nov 15, 2014 at 4:07 AM, Emmanuel Engelhart <[email protected]> wrote: > Hi > > I currently try to create a cache for "mwoffliner". A cache for images > (thumbnails) and a cache for Parsoid output. For the images/thumbnails it's > pretty straight forward thanks to the "last-modified" header. > > Unfortunately, for the Parsoid output, this seems to be more complicated. > Gabriel's htmldumper relies only on the oldid value, but I'm not really > satisfied byt this approach because I want to be able to download a new > version of the HTML for the same oldid if necessary (for example if the > HTML output was improved with a Parsoid fix). > > There is an "age" header but I don't really understand the fundamental > difference with "last-modified". Do we have the same information here but > presented in an other way? If yes, why is that better than "last-modified"? > > There is in addition the "x-varnish" header but this is IMO an internal > information I should not rely on (and BTW, time to time we get headers with > two "x-warning" header entries, what looks pretty weird to me - see PS). > > Finally my question, might we introduce a "last-modified" HTTP header? > > Regards > Emmanuel > > PS: Here an example of request with two "x-varnish" headers: > > $ curl -I "http://parsoid-lb.eqiad.wikimedia.org/dewiki/Almer%C3% > ADa?oldid=133672544" > HTTP/1.1 200 OK > X-Powered-By: Express > Vary: Accept-Encoding > Access-Control-Allow-Origin: * > Cache-Control: s-maxage=2592000 > content-revision-id: 133672544 > X-Parsoid-Performance: duration=4063; start=1416051524354 > Content-Type: text/html; charset=UTF-8 > X-Varnish: 735376643 735208307 > Via: 1.1 varnish > Date: Sat, 15 Nov 2014 12:03:47 GMT > X-Varnish: 1047669169 > Age: 1499 > Via: 1.1 varnish > Connection: keep-alive > X-Cache: cp1058 hit (6), cp1058 frontend miss (0) > > -- > Kiwix - Wikipedia Offline & more > * Web: http://www.kiwix.org > * Twitter: https://twitter.com/KiwixOffline > * more: http://www.kiwix.org/wiki/Communication > > _______________________________________________ > Wikitext-l mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikitext-l >
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