Re: [Bigdata-commit] Working with blazegraph

[Michael S. <ms...@me...>]

Dear Alex,

thanks for your interest in Blazegraph.

There are different ways to communicate with the Blazegraph server. The way you tried is through Java using the Sesame API. This is a generic RDF API and a convenient way to integrate with Java applications. Sesame offers different options to do so, one is the native BigdataSail (which is used in the sample code you are using), another option is using a more generic SPARQL repository (which wraps requests against Blazegraph’s built-in SPARQL endpoint).

And yes, you can as well communicate with Blazegraph’s standard compliant SPARQL endpoint (and some custom APIs) directly via command line/curl. Beyond the SPARQL endpoint, Blazegraph offers some convenient REST API extensions. See for instance https://wiki.blazegraph.com/wiki/index.php/REST_API#INSERT <https://wiki.blazegraph.com/wiki/index.php/REST_API#INSERT> for a description on how to insert data from file. Similar methods are available for deletion, SPARQL UPDATE, and querying, of course.

Just a side note: this is a development focused mailing list (commit traffic), it would be great if you could send future questions regarding the use of Blazegraph to https://lists.sourceforge.net/lists/listinfo/bigdata-developers <https://lists.sourceforge.net/lists/listinfo/bigdata-developers> instead.

Best,
Michael

> On 11 Sep 2015, at 19:33, Alex Muir <ale...@gm...> wrote:
> 
> Hi,
> 
> I'm evaluating blazegraph for a client along with other RDF triple stores.
> 
> I note that there is sample code for loading data. Is a java application the only method to load data.
> http://sourceforge.net/p/bigdata/git/ci/master/tree/bigdata-sails/src/samples/com/bigdata/samples/SampleCode.java <http://sourceforge.net/p/bigdata/git/ci/master/tree/bigdata-sails/src/samples/com/bigdata/samples/SampleCode.java>
> 
> Is there a method to use curl to load data?
> 
> I was trying something like follows
> curl -D -H 'Content-Type: application/rdf+xml' --upload-file zu_en-gb_dict.rdf -X POST 'http://localhost:8080/bigdata/update <http://localhost:8080/bigdata/update>' 
> 
> Is there any application equivalent to s-put for jena?
> 
> Generally speaking are most interactions with blazegraph through java code?
> 
> Regards
> Alex
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