Amazing indeed. Many congratulations. Thanks Tito Dutta
On Wed, 22 Jul 2020 at 23:33, Guillaume Lederrey <[email protected]> wrote: > Hello all! > > We are happy to announce the availability of Wikimedia Commons Query > Service (WCQS): https://wcqs-beta.wmflabs.org/. > > This is a beta SPARQL endpoint exposing the Structured Data on Commons > (SDoC) dataset. This endpoint can federate with WDQS. More work is needed > as we iterate on the service, but feel free to begin using the endpoint. > Known limitations are listed below: > > * The service is a beta endpoint that is updated via weekly dumps. Some > caveats include limited performance, expected downtimes, and no interface, > naming, or backward compatibility stability guarantees. > * The service is hosted on Wikimedia Cloud Services, with limited > resources and limited monitoring. This means there may be random unplanned > downtime. > The data will be reloaded weekly from dumps. The service will be down > during data reload. With the current amount of SDoC data, downtime will > last approximately 4 hours, but this may increase as SDoC data grows. > * Due to an issue with the dump format, the data currently only dates > back to July 5th. We’re working on getting more up-to-date data and hope to > have a solution soon. (https://phabricator.wikimedia.org/T258507 and > https://phabricator.wikimedia.org/T258474) > * The MediaInfo concept URIs (e.g. > http://commons.wikimedia.org/entity/M37200540) are currently HTTP; we may > change these to HTTPS in the near future. Please comment on T258590 if you > have concerns about this change. > > * The service is restricted behind OAuth authentication, backed by > Commons. You will need an account on Commons to access the service. This is > so that we can contact abusive bots and/or users and block them selectively > as a last resort if needed. > * Please note that to correctly logout of the service, you need to use > the logout link in WCQS - logging out of just Wikimedia Commons will not > work for WCQS. This limitation will be lifted once we move to production. > > * No documentation on the service is available yet. In particular, no > examples are provided yet. You can add your own examples at > https://commons.wikimedia.org/wiki/Commons:SPARQL_query_service/queries/examples > following the format at > https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/queries/examples > . > * Please use the SPARQL template. Note that while there is currently a > bug that doesn’t allow us to change the “Try it!” link endpoint, the > examples will be displayed correctly on the WCQS GUI. > > * WCQS is a work in progress and some bugs are to be expected, especially > related to generalizing WDQS to fit SDoC data. For example, current bugs > include: > * URI prefixes specific for SDoC data don’t yet work - you need to use > full URIs if you want to query using them. Relations and Q items are > defined by Wikidata’s URI prefixes, so they work correctly. > * Autocomplete for SDoC items doesn’t work - without prefixes they’d > be unusable anyway, but additional work will be required after we inject > SDoC URI prefixes into WCQS GUI. > * If you find any additional bugs or issues, please report them via > Phabricator with the tag wikidata-query-service. > * We do plan to move the service to production, but we don’t have a > timeline on that yet. We want to emphasize that while we do expect a SPARQL > endpoint to be part of a medium to long-term solution, it will only be part > of that solution. Even once the service is production-ready, it will still > have limitations in terms of timeouts, expensive queries, and federation. > Some use cases will need to be migrated, over time, to better solutions - > once those solutions exist. > > Have fun! > > Guillaume > > -- > Guillaume Lederrey > Engineering Manager, Search Platform > Wikimedia Foundation > UTC+1 / CET > _______________________________________________ > Wikidata mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikidata >
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