feat: select peer to dial from drop down (#282)
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@ -10,18 +10,42 @@
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</head>
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<body>
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<div><h2>Status</h2></div>
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<div>
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<h2>Status</h2>
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</div>
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<div id="status"></div>
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<div><h2>Local Peer Id</h2></div>
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<div>
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<h2>Local Peer Id</h2>
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</div>
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<div id="peer-id"></div>
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<div><h2>Remote Peer Id</h2></div>
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<div id="remote-peer-id"></div>
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<div>
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<h2>Select Peer</h2>
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</div>
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<div>
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<button id="getPeersButton" type="button">Refresh Peers</button>
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<select id="peer-select">
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<option value=""></option>
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</select>
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</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" type="text" value="" />
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</div>
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<div style="margin-right: 1em">
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<input
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id="remote-multiaddr"
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type="text"
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value=""
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style="width: 100%; max-width: 900px"
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/>
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</div>
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<button disabled id="dial" type="button">Dial</button>
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<div>
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<h2>Remote Peers</h2>
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</div>
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<div id="remote-peer-id"></div>
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<br />
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<button disabled id="subscribe" type="button">Subscribe with Filter</button>
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<button disabled id="unsubscribe" type="button">
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@ -61,6 +85,8 @@
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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 getPeersButton = document.getElementById("getPeersButton");
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const peersSelector = document.getElementById("peer-select");
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const ContentTopic = "/js-waku-examples/1/chat/utf8";
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const decoder = createDecoder(ContentTopic);
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@ -75,7 +101,7 @@
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};
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try {
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await searchForPeer(statusDiv, remoteMultiAddrDiv);
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await getPeers();
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} catch (e) {
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console.log("Failed to find a peer", e);
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remoteMultiAddrDiv.value =
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@ -87,6 +113,37 @@
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statusDiv.innerHTML = "<p>Starting Waku node.</p>";
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await node.start();
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// Queries all peers from libp2p peer store and updates list of connected peers
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const updatePeersList = async () => {
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// Generate <p> element with connection string from each peer
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const peers = await node.libp2p.peerStore.all();
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const peerIdElements = peers.map((peer) => {
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const element = document.createElement("p");
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element.textContent = `${peer.addresses[1].multiaddr}/p2p/${peer.id}`;
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return element;
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});
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// Update elements displaying list of peers
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remotePeerIdDiv.replaceChildren(...peerIdElements);
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};
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// Refreshes list of connected peers each time a new one is detected
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node.store.addLibp2pEventListener("peer:connect", async (event) => {
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const peerId = event.detail;
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console.log(`Peer connected with peer id: ${peerId}`);
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// Wait half a second after receiving event for peer to show up in peer store
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setTimeout(async () => {
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updatePeersList();
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}, 500);
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// Update status
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statusDiv.innerHTML = `<p>Peer dialed: ${peerId}</p>`;
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// Enable send and subscribe inputs as we are now connected to a peer
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textInput.disabled = false;
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sendButton.disabled = false;
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subscribeButton.disabled = false;
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});
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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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@ -98,15 +155,14 @@
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return;
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}
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statusDiv.innerHTML = "<p>Dialing peer.</p>";
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const multiaddr = MultiformatsMultiaddr.multiaddr(ma);
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let multiaddr;
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try {
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multiaddr = MultiformatsMultiaddr.multiaddr(ma);
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} catch (err) {
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statusDiv.innerHTML = "<p>Error: invalid multiaddr provided</p>";
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throw err;
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}
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await node.dial(multiaddr, ["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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textInput.disabled = false;
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sendButton.disabled = false;
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subscribeButton.disabled = false;
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};
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const callback = (wakuMessage) => {
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@ -139,19 +195,46 @@
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textInput.value = null;
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};
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async function searchForPeer(statusNode, multiaddrNode) {
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statusDiv.innerHTML = "<p>Discovering peer</p>";
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getPeersButton.onclick = async () => {
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await getPeers(statusDiv, remoteMultiAddrDiv);
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};
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peersSelector.addEventListener("change", function (event) {
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remoteMultiAddrDiv.value = event.target.value;
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});
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//
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async function getPeers() {
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// Display status
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statusDiv.innerHTML = "<p>Discovering peers</p>";
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// Clear all options in select element
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peersSelector.innerHTML = "";
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// Get peers using DNS discovery
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const defaultNodeCount = 5;
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const dnsDiscovery = await DnsNodeDiscovery.dnsOverHttp();
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const peersIterator = await dnsDiscovery.getNextPeer(
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[enrTree["TEST"]],
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{ lightPush: 1, filter: 1 }
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);
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const peerEnr = await peersIterator.next();
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const ma = peerEnr.value.multiaddrs.map((v) => v.toString())[1];
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const peerId = peerEnr.value.peerId.toString();
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const peers = await dnsDiscovery.getPeers([enrTree["TEST"]], {
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relay: defaultNodeCount,
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store: defaultNodeCount,
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filter: defaultNodeCount,
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lightPush: defaultNodeCount,
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});
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multiaddrNode.value = `${ma}/p2p/${peerId}`;
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// Create an option element for each peer's multiaddr and append to select element
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const optionElements = peers.map((peer) => {
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const optionElement = document.createElement("option");
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optionElement.value = `${peer.multiaddrs[1]}/p2p/${peer.peerId}`;
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optionElement.text = `${peer.multiaddrs[1]}/p2p/${peer.peerId}`;
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return optionElement;
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});
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peersSelector.append(...optionElements);
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// Set first peer as selected
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peersSelector.options[0].selected = true;
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remoteMultiAddrDiv.value = selectElement.options[0].value;
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statusDiv.innerHTML = "<p>Peers discovered</p>";
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}
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</script>
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</body>
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