2022-09-26 00:41:30 +00:00
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<!DOCTYPE html>
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<html lang='en'>
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<head>
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<meta charset='UTF-8'/>
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<meta content='width=device-width, initial-scale=1.0' name='viewport'/>
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<title>JS-Waku light node example</title>
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</head>
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<body>
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<div><h1>RLN</h1>
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2022-09-26 05:01:33 +00:00
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<button id='generate-credentials' type='button' disabled>Generate RLN Credentials</button>
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2022-09-26 00:41:30 +00:00
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<div><h2>Credentials</h2>
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<div><h3>Key</h3>
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<div id="key"></div>
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</div>
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<div><h3>Commitment</h3>
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<div id="commitment"></div>
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</div>
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</div>
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</div>
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<div><h1>Waku</h1>
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<div id='status'></div>
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<div><h2>Local Peer Id</h2>
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<div id='peer-id'></div>
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</div>
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<div><h2>Remote Peer Id</h2>
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<div id='remote-peer-id'></div>
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</div>
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<label for='remote-multiaddr'>Remote peer's multiaddr</label>
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<input id='remote-multiaddr'
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type='text'
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value="/dns4/node-01.ac-cn-hongkong-c.wakuv2.test.statusim.net/tcp/443/wss/p2p/16Uiu2HAkvWiyFsgRhuJEb9JfjYxEkoHLgnUQmr1N5mKWnYjxYRVm">
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2022-09-26 05:01:33 +00:00
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<button id='dial' type='button' disabled>Dial</button>
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2022-09-26 00:41:30 +00:00
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<br/>
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<label for='textInput'>Message text</label>
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2022-09-26 05:01:33 +00:00
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<input id='textInput' placeholder='Type your message here' type='text' disabled>
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<button id='sendButton' type='button' disabled>Send message using Light Push</button>
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2022-09-26 00:41:30 +00:00
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<br/>
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<div id="messages"></div>
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</div>
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<script type='module'>
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import {
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utils,
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} from 'https://unpkg.com/js-waku@0.29.0/bundle/index.js';
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import {
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createLightNode
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} from 'https://unpkg.com/js-waku@0.29.0/bundle/lib/create_waku.js'
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import {
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waitForRemotePeer
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} from 'https://unpkg.com/js-waku@0.29.0/bundle/lib/wait_for_remote_peer.js'
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import {
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EncoderV0, DecoderV0
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} from 'https://unpkg.com/js-waku@0.29.0/bundle/lib/waku_message/version_0.js'
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import {create} from "https://unpkg.com/@waku/rln@0.0.7/bundle/index.js";
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// RLN
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const generateCredsButton = document.getElementById('generate-credentials')
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const keyDiv = document.getElementById('key');
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const commitmentDiv = document.getElementById('commitment');
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2022-09-26 05:02:35 +00:00
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let rlnInstance;
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(async () => {
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rlnInstance = await create()
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generateCredsButton.disabled = false;
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})();
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2022-09-26 00:41:30 +00:00
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let membership;
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generateCredsButton.onclick = () => {
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membership = rlnInstance.generateMembershipKey()
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keyDiv.innerHTML = utils.bytesToHex(membership.IDKey)
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commitmentDiv.innerHTML = utils.bytesToHex(membership.IDCommitment)
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}
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// Waku
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const peerIdDiv = document.getElementById('peer-id');
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const remotePeerIdDiv = document.getElementById('remote-peer-id');
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const statusDiv = document.getElementById('status');
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const remoteMultiAddrDiv = document.getElementById('remote-multiaddr');
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const dialButton = document.getElementById('dial')
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const messagesDiv = document.getElementById('messages')
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const textInput = document.getElementById('textInput');
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const sendButton = document.getElementById('sendButton');
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const ContentTopic = "/js-waku-examples/1/chat/utf8";
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const decoder = new DecoderV0(ContentTopic);
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const encoder = new EncoderV0(ContentTopic);
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let messages = [];
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const updateMessages = (msgs, div) => {
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div.innerHTML = "<ul>"
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messages.forEach(msg => div.innerHTML += "<li>" + msg + "</li>")
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div.innerHTML += "</ul>"
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}
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statusDiv.innerHTML = '<p>Creating Waku node.</p>';
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const node = await createLightNode();
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statusDiv.innerHTML = '<p>Starting Waku node.</p>';
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await node.start();
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statusDiv.innerHTML = '<p>Waku node started.</p>';
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peerIdDiv.innerHTML = '<p>' + node.libp2p.peerId.toString() + '</p>'
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dialButton.disabled = false;
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dialButton.onclick = async () => {
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const ma = remoteMultiAddrDiv.value
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if (!ma) {
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statusDiv.innerHTML = '<p>Error: No multiaddr provided.</p>';
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return;
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}
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statusDiv.innerHTML = '<p>Dialing peer.</p>';
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await node.dial(ma, ["filter", "lightpush"])
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await waitForRemotePeer(node, ["filter", "lightpush"]);
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const peers = await node.libp2p.peerStore.all();
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statusDiv.innerHTML = '<p>Peer dialed.</p>';
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remotePeerIdDiv.innerHTML = '<p>' + peers[0].id.toString() + '</p>'
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await node.filter.subscribe([decoder], callback)
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textInput.disabled = false;
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sendButton.disabled = false;
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}
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const callback = (wakuMessage) => {
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const text = utils.bytesToUtf8(wakuMessage.payload)
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const timestamp = wakuMessage.timestamp.toString()
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messages.push(text + " - " + timestamp)
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updateMessages(messages, messagesDiv)
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}
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sendButton.onclick = async () => {
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const text = textInput.value;
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await node.lightPush.push(encoder, {payload: utils.utf8ToBytes(text)});
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console.log('Message sent!');
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textInput.value = null;
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};
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</script>
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</body>
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</html>
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