TRACKER3-ENDPOINT(1)            Tracker manual            TRACKER3-ENDPOINT(1)

NAME
       tracker3-endpoint - Create a SPARQL endpoint

SYNOPSIS
       tracker3 endpoint [--dbus-service | -b] <service_name>
                         [--database-path | -d] <database_path>
                         [[--ontology | -o] <ontology_name> |
                          [--ontology-path | -p] <ontology_path>]
                         [--http-port] <port>
                         [--loopback]
                         [[--system | --session]]

DESCRIPTION
       This command allows creating SPARQL endpoints. The endpoint will be
       able to handle SPARQL select and update queries, and notify about
       changes in it.

       The endpoint is exported via DBus, accessible through the given
       service_name, either using it in a SERVICE clause, or by creating a
       dedicated bus-based SPARQL connection.

       When creating a database, the ontology_name (or alternatively, a
       ontology_path) must be provided in order to generate the database. If
       ontology_name is used, the ontology must exist in
       $datadir/tracker/ontologies

       Users should be careful about the --http-port option, consider using it
       only combined with the --loopback option.

       The database itself will be stored according to database_path.

OPTIONS
       -b, --dbus-service=<service_name>
           Service name to use on the endpoint.

       -d, --database-path=<database_path>
           The path where the database will be stored.

       -o, --ontology
           The name of an ontology in $datadir/tracker/ontologies to use on
           the constructed database.

       -p, --ontology-path
           Full path to an ontology to use on the constructed database.

       --session
           Use the session bus. This is the default.

       --system
           Use the system bus.

       -l, --list
           List all SPARQL endpoints available in DBus

       -L, --list-http
           List network-local HTTP SPARQL endpoints

       --http-port
           Creates a HTTP endpoint that listens in the specified port

       --loopback
           Allows only HTTP connections in the loopback device. Only effective
           with HTTP endpoints.

EXAMPLES
       Export a Nepomuk endpoint with the org.example.Example1 bus name.

           $ tracker3 endpoint -b org.example.Example1 -o nepomuk -d /tmp/example1

       Access this endpoint with the tracker3-sparql(1) subcommand.

           $ tracker3 sparql --dbus-service org.example.Example1 -q "
             SELECT ?s ?o
             WHERE {
               ?u a ?o
             }"

       Export a Nepomuk endpoint via HTTP.

           $ tracker3 endpoint --http-port 8080 -o nepomuk --loopback

       Access this endpoint via HTTP.

           $ tracker3 sparql --remote-service http://127.0.0.1:8080/sparql -q "
             SELECT ?u {
               ?u a rdfs:Resource
             }"

SEE ALSO
       tracker3-sparql(1),

       https://www.w3.org/TR/sparql11-query/

  3.7.3                           05/02/2024              TRACKER3-ENDPOINT(1)