@innotrade/enapso-graphdb-client/demo/qlever-demo.js

ENAPSO Graph Database Client for Node.js

/* eslint-disable no-unused-vars */
/* eslint-disable prefer-const */
/* eslint-disable prefer-template */
/* eslint-disable no-console */
/* eslint-disable prettier/prettier */
/* eslint-disable one-var */
/* eslint-disable no-undef */
/* eslint-disable prettier/prettier */
require('@innotrade/enapso-config');
const { EnapsoGraphDBClient } = require('../index');

// connection data to the running Graph Database instance
const GRAPHDB_BASE_URL = 'http://localhost:7001';
let accessToken='data_7643543846_Zs6nw7yi3Z9m'

const DEFAULT_PREFIXES = [
    EnapsoGraphDBClient.PREFIX_OWL,
    EnapsoGraphDBClient.PREFIX_RDF,
    EnapsoGraphDBClient.PREFIX_RDFS,
    EnapsoGraphDBClient.PREFIX_XSD,
    EnapsoGraphDBClient.PREFIX_PROTONS,
];

let graphDBEndpoint = new EnapsoGraphDBClient.Endpoint({
    baseURL: GRAPHDB_BASE_URL,
    prefixes: DEFAULT_PREFIXES,
    triplestore: 'qlever'
});

graphDBEndpoint.setAccessToken(accessToken);

// read the class
graphDBEndpoint
    .query(
        `SELECT ?iri ?label WHERE {
           ?iri rdf:type ?type.  
		   ?type rdfs:subClassOf <http://ont.lego.com/material#MaterialType>.
           ?iri rdfs:label ?label.
        } limit 100`,
        { useQleverBindings: true,transform: 'toJSON' }
    )
    .then((result) => {
        console.log('Read a class:\n' + JSON.stringify(result, null, 2));
    })
    .catch((err) => {
        console.log(err);
    });

//     // insert the class
// graphDBEndpoint
//     .update(
//         `insert data {
//       owl:TestClass rdf:type owl:Class}
//   `
//     )
//     .then((result) => {
//         console.log('Insert a class :\n' + JSON.stringify(result, null, 2));
//     })
//     .catch((err) => {
//         console.log(err);
//     });