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+<!DOCTYPE html>
+<html lang='en'>
+
+<head>
+    <meta charset='UTF-8'/>
+    <meta content='width=device-width, initial-scale=1.0' name='viewport'/>
+    <title>JS-Waku Chat</title>
+</head>
+
+<body>
+
+<div><h1>Waku Node Status</h1></div>
+<div id='status'></div>
+
+<input id='textInput' placeholder='Type your message here' type='text'>
+<button id='sendButton' onclick='sendMessage();' type='button'>Send Message
+</button>
+
+<div><h1>Messages</h1></div>
+<div id='messages'></div>
+
+
+<script
+        src='https://unpkg.com/js-waku@latest/build/umd/js-waku.min.bundle.js'></script>
+<script>
+    /**
+     * Demonstrate usage of js-waku in the browser. Use relay, gossip sub protocol to send and receive messages.
+     * Recommended payload is protobuf. Using simple utf-8 string for demo purposes only.
+     *
+     * - API documentation: https://js-waku.wakuconnect.dev/
+     * - Guides: https://docs.wakuconnect.dev/
+     *
+     * Note: open this HTML in two different browsers to experience decentralized communication.
+     * A node will not show its own messages, this can be changed by modifying the `Waku.create` call:
+     *
+     * Waku.create({
+     *     bootstrap: {default: true}, libp2p: {
+     *         config: {
+     *             pubsub: {
+     *                 enabled: true,
+     *                 emitSelf: true,
+     *             },
+     *         },
+     *     },
+     * })
+     *
+     */
+
+    const {Waku, WakuMessage, utils} = jswaku;
+    const statusDiv = document.getElementById('status');
+    const messagesDiv = document.getElementById('messages');
+    const textInput = document.getElementById('textInput');
+    const sendButton = document.getElementById('sendButton');
+
+    // Keep it disabled until Waku node is ready
+    textInput.disabled = true;
+    sendButton.disabled = true;
+
+    // Every Waku Message has a content topic that categorizes it.
+    // It is always encoded in clear text.
+    // Recommendation: `/dapp-name/version/functionality/codec`
+    // We recommend to use protobuf as codec (`proto`), this demo uses utf-8
+    // for simplicity's sake.
+    const contentTopic = '/relay-demo/1/message/utf-8';
+
+    // Function to be used to send the text input over Waku.
+    let sendMessage = () => {
+    };
+
+    try {
+        statusDiv.innerHTML = '<p>Starting</p>';
+
+        // https://js-waku.wakuconnect.dev/modules/utils.html#keccak256Buf
+        const password = "trustx";
+        const secretKey = utils.keccak256Buf(password)
+
+        // Create and starts a Waku node.
+        // `default: true` bootstraps by connecting to pre-defined/hardcoded Waku nodes.
+        // We are currently working on migrating this method to DNS Discovery.
+        //
+        // https://js-waku.wakuconnect.dev/classes/waku.Waku.html#create
+        Waku.create({
+            bootstrap: {
+                default: true,
+                // peers: [
+                //     "/ip4/192.168.1.10/tcp/9000/ws/p2p/Q..."
+                // ]
+            },
+            libp2p: {
+                config: {
+                    pubsub: {
+                        enabled: true,
+                        emitSelf: true,
+                    },
+                },
+            },
+        }).catch(e => {
+                statusDiv.innerHTML = 'Error';
+                console.log('Issue starting Waku node', e);
+            }
+        ).then(wakuNode => {
+
+            // Had the decryption key to all receiving protocols (relay, store)
+            //
+            // https://js-waku.wakuconnect.dev/classes/waku.Waku.html#addDecryptionKey
+            wakuNode.addDecryptionKey(secretKey, "symmetric");
+
+            // Had a hook to process all incoming messages on a specified content topic.
+            //
+            // https://js-waku.wakuconnect.dev/classes/waku_relay.WakuRelay.html#addObserver
+            wakuNode.relay.addObserver((wakuMessage) => {
+
+                // Checks there is a payload on the message.
+                // Waku Message is encoded in protobuf, in proto v3 fields are always optional.
+                //
+                // https://js-waku.wakuconnect.dev/classes/waku_message.WakuMessage.html#payload
+                if (!wakuMessage.payload)
+                    return;
+
+                // Helper method to decode the payload to utf-8. A production dApp should
+                // use `wakuMessage.payload` (Uint8Array) which enables encoding a data
+                // structure of their choice.
+                //
+                // https://js-waku.wakuconnect.dev/classes/waku_message.WakuMessage.html#payloadAsUtf8
+                const text = wakuMessage.payloadAsUtf8;
+                messagesDiv.innerHTML = `<p>${text}</p><br />` + messagesDiv.innerHTML;
+            }, [contentTopic]);
+
+            statusDiv.innerHTML = '<p>Connecting to a peer</p>';
+
+            // Best effort method that waits for the Waku node to be connected to remote
+            // waku nodes (peers) and for appropriate handshakes to be done.
+            //
+            // https://js-waku.wakuconnect.dev/classes/waku.Waku.html#waitForRemotePeer
+            wakuNode.waitForRemotePeer()
+                .catch((e) => {
+                    statusDiv.innerHTML = 'Failed to connect to peers: ' + e.toString();
+                })
+                .then(() => {
+
+                    const endTime = new Date();
+                    const startTime = new Date();
+                    startTime.setTime(endTime - 24 * 60 * 60 * 1000);
+
+                    // https://js-waku.wakuconnect.dev/classes/waku_store.WakuStore.html#queryHistory
+                    wakuNode.store.queryHistory([contentTopic], {
+                        timeFilter: {
+                            startTime,
+                            endTime,
+                        },
+                        callback: (messages) => {
+                            messages.reverse().forEach(message => {
+                                if (!message.payload)
+                                    return;
+
+                                const text = message.payloadAsUtf8;
+                                messagesDiv.innerHTML = `<p>${text}</p><br />` + messagesDiv.innerHTML;
+                            })
+                        }
+                    })
+
+                    // We are now connected to a remote peer, let's define the `sendMessage`
+                    // function that sends the text input over Waku Relay, the gossipsub
+                    // protocol.
+                    sendMessage = () => {
+                        const text = textInput.value;
+                        // Reset the text input.
+                        textInput.value = null;
+
+                        // Helper functions are available to create a Waku Message.
+                        // These functions also provide native symmetric, asymmetric encryption,
+                        // signing and signature verification. Check the `Options` object for details:
+                        // https://js-waku.wakuconnect.dev/interfaces/waku_message.Options.html
+                        //
+                        // `WakuMessage.fromBytes` should be preferred for a production dApp to
+                        // serialize a data structure.
+                        //
+                        // https://js-waku.wakuconnect.dev/classes/waku_message.WakuMessage.html#fromUtf8String
+                        WakuMessage.fromUtf8String(text, contentTopic, {
+                            symKey: secretKey
+                        }).catch(e => console.log('Error encoding message', e)).then(
+                            wakuMessage => {
+                                // Once the message is constructed, send it over Waku Relay.
+                                //
+                                // https://js-waku.wakuconnect.dev/classes/waku_relay.WakuRelay.html#send
+                                wakuNode.relay.send(wakuMessage).catch((e) => {
+                                    console.log('Error sending message', e);
+                                }).then(() => {
+                                    console.log('Message sent', text);
+                                });
+                            }
+                        );
+
+                    };
+
+                    // Ready to send & receive messages, enable text input.
+                    textInput.disabled = false;
+                    sendButton.disabled = false;
+                    statusDiv.innerHTML = '<p>Ready!</p>';
+
+                });
+        });
+    } catch (e) {
+        timestampDiv.innerHTML = 'Failed to start application';
+        console.log(e);
+    }
+</script>
+</body>
+
+</html>
