URL of SPARQL endpoint?

[c...@digital-filestore.de]

Dear ORKG users and developers,

up to now I have often used the web interface of the SPARQL endpoint,
i.e. https://www.orkg.org/orkg/sparql/ to my great satisfaction.

Now I want to access the data from an application as e.g. shown here:

https://sparqlwrapper.readthedocs.io/en/latest/main.html#first-steps



I could however not find the appropriate URL of the SPARQL endpoint.


I tried http://orkg.org/sparql, http://query.orkg.org/sparql etc. but
without success.

Under https://www.orkg.org/orkg/sparql/ I get an response but this is
only the html-source of the web interface and not the desired answer to
the SPARQL query.


At
https://gitlab.com/TIBHannover/orkg/orkg-sparql-wiki-gui/-/blob/master/custom-config.json

There is the entry:

"sparql": {
"uri": "http://localhost:8890/sparql"
},


However, it is unclear to me whether and how this port is exposed to the
public internet.

Question:

How to access the sparql endpoint directly via http requests?


Best,
Carsten

[Lars Vogt]

Hi Carsten,

thanks for your interest in the ORKG!

Try this:

 https://www.orkg.org/orkg/triplestore/

and let me please know if it worked for you!

Best,
Lars

Am 22.02.2022 um 13:30 schrieb c...@digital-filestore.de:
> Dear ORKG users and developers,
>
> up to now I have often used the web interface of the SPARQL endpoint,

> i.e.https://www.orkg.org/orkg/sparql/ to my great satisfaction.

>
> Now I want to access the data from an application as e.g. shown here:
>
> https://sparqlwrapper.readthedocs.io/en/latest/main.html#first-steps
>
>
>
> I could however not find the appropriate URL of the SPARQL endpoint.
>
>

> I triedhttp://orkg.org/sparql,http://query.orkg.org/sparql etc. but
> without success.
>
> Underhttps://www.orkg.org/orkg/sparql/ I get an response but this is

> only the html-source of the web interface and not the desired answer to
> the SPARQL query.
>
>
> At
> https://gitlab.com/TIBHannover/orkg/orkg-sparql-wiki-gui/-/blob/master/custom-config.json
>
> There is the entry:
>
> "sparql": {
> "uri":"http://localhost:8890/sparql"
> },
>
>
> However, it is unclear to me whether and how this port is exposed to the
> public internet.
>
> Question:
>
> How to access the sparql endpoint directly via http requests?
>
>
> Best,
> Carsten

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[c...@digital-filestore.de]

Hi Lars,

On 22.02.22 13:58, 'Lars Vogt' via Open Research Knowledge Graph wrote:
> Try this:
>
>  https://www.orkg.org/orkg/triplestore/

First test indicates: works like a charm!


Thank you very much for your quick reply.

Best,
Carsten