Service clause failed

Asked Jun 16 '21 at 14:06

Active Jun 17 '21 at 14:04

Viewed 62 times

I am trying to query different repositories in allegrograph using sparql service clause but I am getting service clause failed error, could anyone let me know what am I doing wrong.

I think it has something to do with the endpoint.

This is my sample query:

query_string = """PREFIX ab: <http://learningsparql.com/ns/addressbook#> 
PREFIX d:  <http://learningsparql.com/ns/data#>    

SELECT  ?first 
WHERE{
   
  service  <http://localhost:10035/repositories/repo1/> {
  ?s ab:firstName ?first. }

         
}"""

error : Server returned 400: Canceling query because a SERVICE clause failed.

edited Jun 17 '21 at 14:04

Jeen Broekstra

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asked Jun 16 '21 at 14:06

Rohit Gupta

Do you have a SPARQL server running on `localhost:10035`? – Joshua Taylor Jun 17 '21 at 14:57
I think yes, I am using sparqlwrapper library – Rohit Gupta Jun 17 '21 at 15:02
do I need to install jena fuseki for that?, because with graphdb service clause works perfectly fine but not with allegrograph – Rohit Gupta Jun 17 '21 at 15:11

Service clause failed

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