Re: APIs to work with data on the web

Hi Phil,

It is a way to embed the query in the URI. Could we have all possible
queries mapped?

Best,
Laufer


2014-03-18 11:51 GMT-03:00 Phil Archer <phila@w3.org>:

> I think that there are a number of possible answers to your question,
> Laufer. The one that I immediately think of is the Linked data API [1]
> which provides a framework for the kind of thing you refer to here. It maps
> URIs to SPARQL queries that can return lists of 'everything below here in
> the graph.'
>
> There are a few implementations of the Linked Data API, one that gets most
> attention these days is ELDA [2].
>
> An alternative URI -> SPARQL mapping tool is Pubby [3] which is used by
> DBPedia (it's from the same team).
>
> To take a fictitious example, I agree it would be nice if:
>
> http://data.example.com/id/building/A/rooms
>
> returned a list of all the rooms in building A
>
> http://data.example.com/id/building/A/rooms/ground
>
> returned a list of all the rooms on the ground floor of building A
>
> http://data.example.com/id/building/A/rooms/ground/01
>
> identified room 01 on the ground floor of building A.
>
> That's a nice thing to set up, and using something like the tools listed
> above is certainly possible. It conflates URI design with implementation
> (which may or may not be a good thing). Whether that's an actual Best
> Practice... is for the WG to decide :-)
>
> Phil.
>
> [1] https://code.google.com/p/linked-data-api/
> [2] http://www.epimorphics.com/web/tools/elda.html
> [3] http://wifo5-03.informatik.uni-mannheim.de/pubby/
>
>
> On 18/03/2014 14:23, Laufer wrote:
>
>> Steve, Manuel,
>>
>> I am not talking only about the Resources. Or, what are the things that
>> are
>> exposed as Resources.
>>
>> For example, in DBpedia there is a Resource for the album Houses of the
>> Holy (http://dbpedia.org/page/Houses_of_the_Holy).
>> There is also a Resource for the record label Atlantic Records (
>> http://dbpedia.org/page/Atlantic_Records), which is the record label from
>> the album Houses of the Holy.
>>
>> What is the URI of all albums of the record label Atlantic Records?
>>
>> My question is: could it be one Best Practice, recommended by of DWBP WG,
>> to provide a way of exposing the "Resource" All Albums of the Record Label
>> Atlantic Records?
>>
>> Best Regards,
>> Laufer
>>
>>
>>
>>
>> 2014-03-18 10:18 GMT-03:00 Steven Adler <adler1@us.ibm.com>:
>>
>>  Thanks.  A few people have agreed with our position below, but some still
>>> like the idea of API's for accessing Data.  What is the process W3C uses
>>> to
>>> resolve these points of view and when it is resolved, does the conclusion
>>> get written into the Best Practices draft and/or do we also include the
>>> lineage of the conclusion - that is, we we present the pros and cons and
>>> reasons for the conclusion by also relating what we didn't recommend and
>>> why?
>>>
>>>
>>> Best Regards,
>>>
>>> Steve
>>>
>>> Motto: "Do First, Think, Do it Again"
>>>
>>>
>>>   From: <Manuel.CARRASCO-BENITEZ@ec.europa.eu> To: Steven
>>> Adler/Somers/IBM@IBMUS, <Deirdre.Lee@deri.org> Cc: <mail@makxdekkers.com
>>> >,
>>> <newton@nic.br>, <public-dwbp-wg@w3.org> Date: 03/18/2014 08:21 AM
>>> Subject: RE: APIs to work with data on the web
>>> ------------------------------
>>>
>>>
>>>
>>>
>>> +1
>>>
>>> -        Resources should be addressable with a URI
>>> -        One should aim a common interface for humans and machine
>>>
>>> *http://www.w3.org/2013/dwbp/wiki/Data_on_the_Web_URI_Best_Practices*<
>>> http://www.w3.org/2013/dwbp/wiki/Data_on_the_Web_URI_Best_Practices>
>>>
>>> Regards
>>> Tomas
>>>
>>> *From:* Steven Adler [mailto:adler1@us.ibm.com <adler1@us.ibm.com>]
>>> * Sent:* Monday, March 17, 2014 4:34 PM
>>> * To:* Lee, Deirdre
>>> * Cc:* Makx Dekkers; Newton Calegari; public-dwbp-wg@w3.org
>>> * Subject:* RE: APIs to work with data on the web
>>>
>>>
>>> Excellent use case which begins to explore and spell out the advantages
>>> and trade-offs of using API's to access Open Data.  I would like to
>>> explore
>>> this topic in greater detail.  My own personal preference is data access
>>> by
>>> HTTP and URI, because it provides a common interface for humans and
>>> machines.  But are there performance implications?
>>>
>>>
>>> Best Regards,
>>>
>>> Steve
>>>
>>> Motto: "Do First, Think, Do it Again"
>>>
>>>   From: "Lee, Deirdre" <*Deirdre.Lee@deri.org* <Deirdre.Lee@deri.org>>
>>>  To: Newton
>>> Calegari <*newton@nic.br* <newton@nic.br>>, Makx Dekkers <
>>> *mail@makxdekkers.com* <mail@makxdekkers.com>>  Cc: "
>>> *public-dwbp-wg@w3.org* <public-dwbp-wg@w3.org>" <*public-dwbp-wg@w3.org
>>> *<public-dwbp-wg@w3.org>
>>>
>>>    Date: 03/17/2014 11:19 AM  Subject: RE: APIs to work with data on the
>>>>
>>> web
>>>
>>> ------------------------------
>>>
>>>
>>>
>>>
>>>
>>> Hi all,
>>>
>>> Very interesting article indeed and related to discussions we're
>>> currently
>>> having with developers as part of Open Data Ireland on how best to
>>> publish/use machine-readable data.
>>>
>>> I've added a use-case on it *https://www.w3.org/2013/dwbp/
>>> wiki/Use_Cases*<https://www.w3.org/2013/dwbp/wiki/Use_Cases>Please feel
>>> free to add points or pick up on nuances of the conversation
>>>
>>> that I missed. Perhaps we could break this into multiple use-cases to
>>> look
>>> at each of the aspects in more detail?
>>>
>>> Cheers,
>>> Deirdre
>>>
>>>
>>> * From:* Newton Calegari [*mailto:newton@nic.br* <newton@nic.br>]
>>> * Sent:* 17 March 2014 13:19
>>> * To:* Makx Dekkers
>>> * Cc:* *public-dwbp-wg@w3.org* <public-dwbp-wg@w3.org>
>>> * Subject:* Re: APIs to work with data on the web
>>>
>>>
>>> Hi Laufer, I didn't know the Socrata.
>>> Thanks for share the link, Makx. Very interesting text and point of view
>>> about APIs.
>>>
>>> BR,
>>>
>>> Newton
>>>
>>> Em 14/03/2014, à(s) 15:58, Makx Dekkers <*mail@makxdekkers.com*<mail@
>>> makxdekkers.com>>
>>>
>>> escreveu:
>>>
>>>
>>> For a different perspective on APIs, see this:
>>> *http://ruben.verborgh.org/blog/2013/11/29/the-lie-of-the-api/*<
>>> http://ruben.verborgh.org/blog/2013/11/29/the-lie-of-the-api/>
>>>
>>> Makx.
>>>
>>> * From:* Newton Calegari [*mailto:newton@nic.br* <newton@nic.br>]
>>> * Sent:* Thursday, March 13, 2014 6:03 PM
>>> * To:* *public-dwbp-wg@w3.org* <public-dwbp-wg@w3.org>
>>> * Subject:* APIs to work with data on the web
>>>
>>>
>>> Hi all,
>>>
>>>           Last week, Yaso and I were talking about APIs and how they are
>>> important in all aspects of data on the web. APIs are one of the simplest
>>> ways to access and to distribute data across the web, and we think that
>>> is
>>> an important subject to be discussed on the WG.
>>>           To talk about APIs, we obviously need to discuss about URI and
>>> descriptors. Carrasco written the first document [*1*<
>>> http://www.w3.org/2013/dwbp/wiki/Data_on_the_Web_URI_Best_Practices>]
>>>
>>> about it, besides there are a few messages discussing it.
>>>           Moreover, I want to share some links I consider relevant and
>>> useful to discuss about this topic.
>>>           Joshua Bloch, a software engineer and former *Googler*,
>>> published an article on InfoQ [*2*<http://www.infoq.com/
>>> articles/API-Design-Joshua-Bloch?utm_source=buffer&utm_
>>> campaign=Buffer&utm_content=buffer36801&utm_medium=
>>> twitter#.UvbdCPy0BT0.delicious>]
>>>
>>> site and made a presentation called "How to Design a Good API & Why it
>>> Matters" [*3* <http://www.infoq.com/presentations/effective-api-design>]
>>>
>>> (other Jushua's presentation about the same subject, but the video is
>>> hosted on YouTube [*4* <https://www.youtube.com/watch?v=aAb7hSCtvGw>]).
>>>
>>> These links are very interesting and I recommend to all of you, even who
>>> is
>>> already expert in API design.
>>>
>>> [1] Data on the Web URI Best Practices:
>>> *http://www.w3.org/2013/dwbp/wiki/Data_on_the_Web_URI_Best_Practices*<
>>> http://www.w3.org/2013/dwbp/wiki/Data_on_the_Web_URI_Best_Practices>
>>>
>>> [2] Joshua Bloch: Bumper-Sticker API Design:
>>> *http://www.infoq.com/articles/API-Design-Joshua-
>>> Bloch?utm_source=buffer&utm_campaign=Buffer&utm_content=
>>> buffer36801&utm_medium=twitter#.UvbdCPy0BT0.delicious*<http://www.infoq.
>>> com/articles/API-Design-Joshua-Bloch?utm_source=
>>> buffer&utm_campaign=Buffer&utm_content=buffer36801&utm_
>>> medium=twitter#.UvbdCPy0BT0.delicious>
>>>
>>> [3] How to Design a Good API & Why it Matters:
>>> *http://www.infoq.com/presentations/effective-api-design*<
>>> http://www.infoq.com/presentations/effective-api-design>
>>>
>>> [4] How to Design a Good API & Why it Matters (YouTube version):
>>> *https://www.youtube..com/watch?v=aAb7hSCtvGw*<https://
>>> www.youtube.com/watch?v=aAb7hSCtvGw>
>>>
>>> Best Regards,
>>> Newton
>>>
>>>
>>>
>>>
>>
>>
> --
>
>
> Phil Archer
> W3C Data Activity Lead
> http://www.w3.org/2013/data/
>
> http://philarcher.org
> +44 (0)7887 767755
> @philarcher1
>



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