HAL is the French national online academic archives for academic papers and now has a SPARQL endpoint.
- https://data.hal.science/doc/sparql
- http://sparql.archives-ouvertes.fr/sparql
How should I proceed to make this SPARQL endpoint and Wikidata endpoint's federated ones, so I may run a SPARQL query and request data from both endpoints ?
{F37109105}
**Issue:**
### HAL QS attempt
On HAL QS : http://sparql.archives-ouvertes.fr/sparql , running :
```
PREFIX wd: <http://www.wikidata.org/entity/>
# defaultEndpoint:Lingualibre or HAL
SELECT ?predicate ?object WHERE {
SERVICE <https://query.wikidata.org/sparql> {
# Given Q12107 language, get all properties and values
wd:Q12107 ?predicate ?object .
}
}
```
returns error : `Virtuoso 42000 Error SQ070:SECURITY: Must have select privileges on view DB.DBA.SPARQL_SINV_2`
### WDQS attempt
```
SELECT * WHERE {
SERVICE <http://sparql.archives-ouvertes.fr/sparql> {
?s ?p ?o
}
}
```
returns error : `Service URI http://sparql.archives-ouvertes.fr/sparql is not allowed`
**Feature summary** (what you would like to be able to do and where):
Allow end point so WDQS could run the following request :
**Benefits** (why should this be implemented?):
Can provide more insight on French academic workd.
Could ease synchronization efforts, namely the import of HAL structure ID ( [[ https://wikidata.org/wiki/P6773 | d:P6773 ]] )