[13:33:27] <Nayoleo>	 hola soy Leonardo Martinez Gonzalez de Greenville nesecito mucha ayuda
[15:19:51] <phschafft>	 I sometimes want to do wikidata id -> some other id (e.g. musicbrainz). That is easy. I was wondering if there is a API for a reverse lookup.
[15:20:09] <phschafft>	 so not A -r-> ? but ? -r-> B
[15:20:20] <phschafft>	 to get back to A.
[17:48:34] <markh>	 phschafft: You can do it using a SPARQL query
[17:49:23] <markh>	 For example if you want to send a SPARQL query and get the results in json you can use something like this:
[17:49:24] <markh>	 https://query.wikidata.org/sparql?query=SELECT%20*%20WHERE%20%7B%20%3Fitem%20wdt%3AP434%20%22b10bbbfc-cf9e-42e0-be17-e2c3e1d2600d%22%20%7D&format=json
[17:55:03] <phschafft>	 that is nice. do I need to be extra careful with that endpoint? don't want to be that guy that is known for hammering the API.
[18:06:30] <markh>	 phschafft: I don't know if there is something specific to that endpoint but there is the general guidance https://www.mediawiki.org/wiki/API:Etiquette
[18:09:43] <phschafft>	 hm.
[18:10:01] <phschafft>	 thank you for all that input. super helpful. :)
[18:12:04] <markh>	 Also btw if you want to just look up the item(s) with a particular external ID in web UI you can just enter haswbstatement:P434=b10bbbfc-cf9e-42e0-be17-e2c3e1d2600d in the search box.
[18:13:38] <phschafft>	 my context are some applications I work on (at work). and I would like to get good wikidata support in.
[18:13:49] <phschafft>	 however I also don't want to be that bad guy ;)
[18:15:32] <phschafft>	 that's also why I was wondering if importing a dump to prime an internal cache and only do lookups if the cache doesn't have any data for the request would be an option.