Reading from a pod with LDES in LDP.

readFromPod.ts

// download these packages from npm
// you can use the my template for an intial Typescript project:
// https://github.com/argahsuknesib/ts-template
import { LDESinLDP, LDPCommunication } from "@treecg/versionawareldesinldp";
const N3 = require('n3');


async function main() {
    // let ldes_location = 'https://n061-14a.wall2.ilabt.iminds.be/dataset_participant1/data/'; //change this to the location of your LDES
    let ldes_location = 'http://localhost:3000/dataset_participant1/data/';
    let communication = new LDPCommunication(); // this is an unauthenticated communication with the solid pod
    let ldes_in_ldp = new LDESinLDP(ldes_location, communication); // the LDES in LDP class
    // we read the sensor events as a stream

    let from = '2021-05-01T00:00:00.000Z'; // the start date of the stream (change as your need)
    let to = '2024-05-01T00:00:00.000Z'; // the end date of the stream (change as your need)

    let stream = await ldes_in_ldp.readMembersSorted({
        from: new Date(from),
        until: new Date(to),
        chronological: true
    })

    // now you read from the strem object
    stream.on('data', (data) => {
        let stream_store = new N3.Store(data.quads);
        // console.log(stream_store); // this will be the sensor event printed as a Quad Store
        for (let quad of stream_store.getQuads(null, null, null, null)) {
            console.log(quad);  // this will print the quads one by one
        }
    })
    stream.on('end', () => {
        console.log('done reading from the stream');
    })
}

main();