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Re: Schema.org just published a JSON-LD context

From: Melvin Carvalho <melvincarvalho@gmail.com>
Date: Tue, 17 Jun 2014 14:13:57 +0200
Message-ID: <CAKaEYhLrKz5zZzRiZOq+d7=Tf40ei9QKLOJ5sAgPsmdaDGXoaw@mail.gmail.com>
To: Dan Brickley <danbri@danbri.org>
Cc: Stian Soiland-Reyes <soiland-reyes@cs.manchester.ac.uk>, Markus Lanthaler <markus.lanthaler@gmx.net>, Linked JSON <public-linked-json@w3.org>
On 17 June 2014 13:41, Dan Brickley <danbri@danbri.org> wrote:

> On 17 June 2014 11:21, Dan Brickley <danbri@danbri.org> wrote:
> > On 17 June 2014 11:13, Stian Soiland-Reyes
> > <soiland-reyes@cs.manchester.ac.uk> wrote:
> >> Brilliant news!
> >>
> >>
> >> However..
> >>
> >>
> >>     Cache-Control: no-cache
> >>
> >> means the context will be re-requested for every parsing.  (e.g.
> >> jsonld-java will normally cache contexts -
> >> https://github.com/jsonld-java/jsonld-java#controlling-network-traffic)
> >> I guess Google can handle the load, but it would mean slow-down for
> >> clients.
> >>
> >>
> >> Also the header
> >>
> >>     Vary: Accept
> >>
> >> is missing (indicating that you could get a different representation
> >> if you have a different Accept header) - but given the above that is
> >> not a big issue..
> >
> > Thanks. This release was bordering on the 'easter egg' level of
> > maturity, but I think we can fix it up pretty quickly. There's basic
> > caching in the (appengine) app so the context file is only computed
> > once, but you're right these details need attending to.
>
> OK, thanks Markus, Stian. I've just updated the live site,
>
>  curl --verbose -H "Accept: application/ld+json" http://schema.org/ | head
>
> ...should show better headers now.
>

perhaps easier just to use -X HEAD

>
>
> > GET / HTTP/1.1
> > User-Agent: curl/7.30.0
> > Host: schema.org
> > Accept: application/ld+json
> >
> < HTTP/1.1 200 OK
> < Access-Control-Allow-Origin: *
> < Content-Type: application/ld+json
> < Cache-Control: public, max-age=43200
> < Vary: Accept, Accept-Encoding
> < Date: Tue, 17 Jun 2014 11:24:30 GMT
> * Server Google Frontend is not blacklisted
> < Server: Google Frontend
> < Content-Length: 15957
> < Alternate-Protocol: 80:quic
>
>
> Current code is here:
> https://github.com/rvguha/schemaorg/blob/master/api.py#L329
>
> Notes on improving it: https://github.com/rvguha/schemaorg/wiki/JsonLd
>
> This thread is a fine place to continue discussions too.
>
> I'm tempted to look at a format like
> http://danbri.org/2013/SchemaD3/examples/4063550/hackathon-schema2.js
> which can be directly understood by D3.js - e.g.
> http://danbri.org/2013/SchemaD3/examples/4063550/hack3c.html ... but
> maybe the context file isn't the ideal place to put all those schema
> details?
>
> Is it considered better practice to have an informative, full-featured
> context file, or something small and compact for speedy access?
>
> cheers,
>
> Dan
>
>
Received on Tuesday, 17 June 2014 12:14:26 UTC

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