Rust implementation of NextGraph, a Decentralized and local-first web 3.0 ecosystem
https://nextgraph.org
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127 lines
6.4 KiB
127 lines
6.4 KiB
// Copyright (c) 2022-2024 Niko Bonnieure, Par le Peuple, NextGraph.org developers
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// All rights reserved.
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// Licensed under the Apache License, Version 2.0
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// <LICENSE-APACHE2 or http://www.apache.org/licenses/LICENSE-2.0>
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// or the MIT license <LICENSE-MIT or http://opensource.org/licenses/MIT>,
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// at your option. All files in the project carrying such
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// notice may not be copied, modified, or distributed except
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// according to those terms.
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const WebSocket = require("ws");
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// shim to insert WebSocket in global
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const ng = require("nextgraph");
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global.WebSocket = WebSocket;
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let config = {
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server_peer_id: "FtdzuDYGewfXWdoPuXIPb0wnd0SAg1WoA2B14S7jW3MA",
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admin_user_key: "pye0YFzk1ix1amKEwd6AeqaUAN_PNpH5zGLomh0M1PAA",
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client_peer_key: "GRP0QnlzaB8o2vdiBaNoOYDNOFX-uehLZMxeCaG3JA0A",
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server_addr: "127.0.0.1:14400"
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};
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ng.init_headless(config).then( async() => {
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let session_id;
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try {
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//let user_id = await ng.admin_create_user(config);
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//console.log("user created: ",user_id);
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let user_id = "NnAJWxO-KapuWyCm7RGwO5VszZwaJARGit-i3i1mXbkA";
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let base = "did:ng:o:8mqfhoSprneBjkAASinRk0OYvFpbiyhjMBVHKQIarDEA";
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let session = await ng.session_headless_start(user_id);
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session_id = session.session_id;
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console.log(session);
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let dump = await ng.rdf_dump(session.session_id);
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console.log(dump);
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console.log("******** SELECT")
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let sparql_result = await ng.sparql_query(session.session_id, "SELECT ?s ?p ?o WHERE { ?s ?p ?o }", base);
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console.log(sparql_result);
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for (const q of sparql_result.results.bindings) {
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console.log(q);
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}
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// let history = await ng.branch_history(session.session_id);
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// for (const h of history.history) {
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// console.log(h[0], h[1]);
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// }
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// console.log(history.swimlane_state);
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//await ng.sparql_update(session.session_id, "INSERT DATA { <did:ng:o:8mqfhoSprneBjkAASinRk0OYvFpbiyhjMBVHKQIarDEA> <did:ng:i> <did:ng:j> }");
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// await ng.sparql_update(session.session_id, "DELETE DATA { <did:ng:t:AJQ5gCLoXXjalC9diTDCvxxWu5ZQUcYWEE821nhVRMcE> <did:ng:i> <did:ng:j> }");
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// await ng.sparql_update(session.session_id, "INSERT DATA { <did:ng:t:AJQ5gCLoXXjalC9diTDCvxxWu5ZQUcYWEE821nhVRMcE> <did:ng:i> <did:ng:j> }");
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// await ng.sparql_update(session.session_id, "INSERT { ?s <did:ng:i> <did:ng:k> } WHERE { ?s <did:ng:i> <did:ng:j> } ");
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// await ng.sparql_update(session.session_id, "INSERT DATA { <did:ng:z> <did:ng:j> <did:ng:t:BJQ5gCLoXXjalC9diTDCvxxWu5ZQUcYWEE821nhVRMcE>. <did:ng:t:BJQ5gCLoXXjalC9diTDCvxxWu5ZQUcYWEE821nhVRMcE> <did:ng:m> <did:ng:n> }");
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//await ng.sparql_update(session.session_id, "INSERT DATA { <did:ng:z> <did:ng:j> [ <did:ng:m> <did:ng:n> ]. }");
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//await ng.sparql_update(session.session_id, "INSERT DATA { [ <did:ng:m> <did:ng:n> ] <did:ng:ok> <did:ng:v> . }");
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//await ng.sparql_update(session.session_id, "INSERT { ?a <did:ng:ok> <did:ng:v> . } WHERE { ?a <did:ng:m> <did:ng:n> } ");
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//await ng.sparql_update(session.session_id, "INSERT DATA { <did:ng:z> <did:ng:j> _:1 . _:1 <did:ng:m> <did:ng:n>. }");
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//await ng.sparql_update(session.session_id, "INSERT DATA { _:f766ca988268ddc60315ddd5bd621387 <did:ng:o> <did:ng:>. }");
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//await ng.sparql_update(session.session_id, "INSERT { _:_ <did:ng:ok> <did:ng:v> . } WHERE { _:_ <did:ng:m> <did:ng:n> } ");
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//await ng.sparql_update(session.session_id, "INSERT DATA { _:_ <abc:a> <d:a> . _:_a <abceee:a> <d:a> . }");
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//await ng.sparql_update(session.session_id, "INSERT DATA { <> <a:self> <a:self> . }",base);
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await ng.sparql_update(session.session_id, "INSERT DATA { <did:ng:TEST4> <did:ng:j> _:_ . _:_ <did:ng:m> <did:ng:n> . }");
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await ng.sparql_update(session.session_id, "INSERT DATA { <did:ng:TEST5> <did:ng:j> [ <did:ng:m> <did:ng:n> ]. }");
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sparql_result = await ng.sparql_query(session.session_id, "SELECT ?a WHERE { ?a <did:ng:j> _:abc. _:abc <did:ng:m> <did:ng:n> }", base);
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console.log(sparql_result);
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for (const q of sparql_result.results.bindings) {
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console.log(q);
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}
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sparql_result = await ng.sparql_query(session.session_id, "SELECT ?s ?a WHERE { ?s <did:ng:j> ?a }", base);
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console.log(sparql_result);
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for (const q of sparql_result.results.bindings) {
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console.log(q);
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}
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console.log("******** CONSTRUCT")
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let quads = await ng.sparql_query(session.session_id, "CONSTRUCT { ?s ?p ?o } WHERE { ?s ?p ?o }",base);
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for (const q of quads) {
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console.log(q.subject.toString(), q.predicate.toString(), q.object.toString(), q.graph.toString())
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}
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// let file_nuri = await ng.file_put_to_private_store(session.session_id,"LICENSE-MIT","text/plain");
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// console.log(file_nuri);
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// //let file_nuri = "did:ng:j:AD_d4njVMAtIDEU1G-RDxfOLIOZyOrB_1Rb7B6XykIEJ:k:APV-_Xtk03PW_Mbl4OaYpLrmEkBDVtn81lpto8sxc_tb";
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// var bufs = [];
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// let cancel = await ng.file_get_from_private_store(session.session_id, file_nuri, async (file) => {
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// if (file.V0.FileMeta) {
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// //skip
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// } else if (file.V0.FileBinary) {
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// if (file.V0.FileBinary.byteLength > 0) {
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// bufs.push(file.V0.FileBinary);
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// }
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// } else if (file.V0 == 'EndOfStream') {
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// //console.log("end of file");
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// var buf = Buffer.concat(bufs);
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// // if the file contains some UTF8 text
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// console.log(buf.toString('utf8'));
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// }
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// });
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// the 2nd argument `false` means: do not `force_close` the dataset.
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// it will be detached, which means it stays in memory even when the session is stopped.
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// (not all the dataset is in memory anyway! just some metadata)
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// if you set this to true, the dataset is closed and removed from memory on the server.
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// next time you will open a session for this user, the dataset will be loaded again.
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let res = await ng.session_headless_stop(session.session_id, false);
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//console.log(res);
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} catch (e) {
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console.error(e);
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if (session_id) await ng.session_headless_stop(session_id, true);
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}
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})
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.catch(err => {
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console.error(err);
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});
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