SPARQL Update INSERT DATA does not support blank nodes about cliopatria HOT 3 CLOSED

Not really sure, but i think that the predicate cannot be a bnode.

   JanWouter Beek [email protected] wrote:Posting the following SPARQL Update request to a ClioPatria instance throws a syntax error:

INSERT DATA { _:1 _:1 _:1 . }
Reproducing code, assuming a ClioPatria instance is running at localhost port 3020:

:- module(
test_sparql_update,
[
test_sparql_update/0
]
).

/** Test SPARQL Update

This tests the occurrence of blank nodes in SPARQL Update INSERT DATA
in ClioPatria.

@author Wouter Beek
@Version 2014/06/16
*/

:- use_module(library(ansi_term)).
:- use_module(library(base64)).
:- use_module(library(debug)).
:- use_module(library(http/http_client)).

:- debug(test_sparql_update).

test_sparql_update:-
% ClioPatria user name.
format(user_output, 'Enter a ClioPatria user name.\n', []),
read_line_to_string(user_input, User),

% ClioPatria password.
format(user_output, 'Enter the password for user ~s.\n', [User]),
read_line_to_string(user_input, Password),

phrase(test_sparql_update, Query),
http_authentication(User, Password, Authentication),
http_post(
'http://localhost:3020/sparql/update',
codes('application/sparql-update', Query),
Reply,
[request_header('Authorization'=Authentication)]
),
debug(test_sparql_update, 'Reply: ~w', [Reply]).

test_sparql_update -->
INSERT DATA { _:1 _:1 _:1 . }.

http_authentication(User, Password, Authentication):-
atomics_to_string([User,Password], ':', Plain),
base64(Plain, Encoded),
atomics_to_string(['Basic',Encoded], ' ', Authentication).
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Sorry, that was a copy/paste mistake. Please have a look at the updated question, in which the predicate is no longer a bnode.

from cliopatria.

Solved!

from cliopatria.