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.\" ========================================================================
.\"
.IX Title "Attean::SPARQLClient 3pm"
.TH Attean::SPARQLClient 3pm "2022-10-06" "perl v5.34.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
Attean::SPARQLClient \- RDF blank nodes
.SH "VERSION"
.IX Header "VERSION"
This document describes Attean::SPARQLClient version 0.033
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 7
\&  use v5.14;
\&  use Attean;
\&  my $client = Attean::SPARQLClient\->new(endpoint => \*(Aqhttp://example.org/sparql\*(Aq);
\&  my $results = $client\->query(\*(AqSELECT * WHERE { ?s ?p ?o }\*(Aq);
\&  while (my $r = $results\->next) {
\&    say $r\->as_string;
\&  }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The Attean::SPARQLClient class provides an \s-1API\s0 to execute \s-1SPARQL\s0 queries
against a remote \s-1SPARQL\s0 Protocol endpoint.
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
The following attributes exist:
.ie n .IP """endpoint""" 4
.el .IP "\f(CWendpoint\fR" 4
.IX Item "endpoint"
A \s-1URL\s0 of the remote service implementing the \s-1SPARQL 1.1\s0 Protocol. This value
is a Attean::API::IRI, but can be coerced from a string.
.ie n .IP """silent""" 4
.el .IP "\f(CWsilent\fR" 4
.IX Item "silent"
.PD 0
.IP "<< user_agent >>" 4
.IX Item "<< user_agent >>"
.ie n .IP """request_signer""" 4
.el .IP "\f(CWrequest_signer\fR" 4
.IX Item "request_signer"
.PD
.SH "METHODS"
.IX Header "METHODS"
.ie n .IP """query_request( $sparql )""" 4
.el .IP "\f(CWquery_request( $sparql )\fR" 4
.IX Item "query_request( $sparql )"
Returns an HTTP::Request object for the given \s-1SPARQL\s0 query string.
.ie n .IP """query( $sparql )""" 4
.el .IP "\f(CWquery( $sparql )\fR" 4
.IX Item "query( $sparql )"
Executes the given \s-1SPARQL\s0 query string at the remote endpoint. If execution is
successful, returns an Attean::API::Iterator object with the results. If
execution fails but the client \f(CW\*(C`silent\*(C'\fR flag is true, returns an empty
iterator. Otherwise raises an error via \f(CW\*(C`die\*(C'\fR.
.SH "BUGS"
.IX Header "BUGS"
Please report any bugs or feature requests to through the GitHub web interface
at <https://github.com/kasei/attean/issues>.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\s-1SPARQL 1.1\s0 Protocol <https://www.w3.org/TR/sparql11-protocol/>
.SH "AUTHOR"
.IX Header "AUTHOR"
Gregory Todd Williams  \f(CW\*(C`<gwilliams@cpan.org>\*(C'\fR
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 2014\-\-2022 Gregory Todd Williams.
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.