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Adds chat tutorial app files
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3 files changed

+190
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‎messaging-js/chat.js‎

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const ALICE_JWT = "";
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const BOB_JWT = "";
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const CONVERSATION_ID = "";
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const aliceLoginBtn = document.getElementById("alice-login");
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const bobLoginBtn = document.getElementById("bob-login");
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const messageTextarea = document.getElementById("message-textarea");
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const messageFeed = document.getElementById("message-feed");
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const sendButton = document.getElementById("send");
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let userToken;
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let myMember;
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function formatMessage(sender, message) {
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const rawDate = new Date(Date.parse(message.timestamp));
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const options = {
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weekday: "long",
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year: "numeric",
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month: "long",
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day: "numeric",
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hour: "numeric",
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minute: "numeric",
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second: "numeric",
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};
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const formattedDate = rawDate.toLocaleDateString(undefined, options);
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let text = "";
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if (message.from.memberId !== myMember.id) {
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text = `<span style="color:red">${sender.userName.replace(/</g,"&lt;")} (${formattedDate}): <b>${message.body.text.replace(/</g,"&lt;")}</b></span>`;
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} else {
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text = `me (${formattedDate}): <b>${message.body.text.replace(/</g,"&lt;")}</b>`;
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}
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return text + "<br />";
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}
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function handleEvent(event) {
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let formattedMessage;
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switch (event.kind) {
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case "member:invited":
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formattedMessage = `${event.body.user.name} was invited.<br/>`;
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break;
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case "member:joined":
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formattedMessage = `${event.body.user.name} joined.<br/>`;
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break;
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case "member:left":
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formattedMessage = `${event.body.user.name} left.<br/>`;
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break;
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case "message:text":
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const sender = {
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displayName: event.from.displayName,
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memberId: event.from.memberId,
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userName: event.from.user.name,
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userId: event.from.user.id,
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};
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formattedMessage = formatMessage(sender, event);
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break;
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}
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messageFeed.innerHTML = messageFeed.innerHTML + formattedMessage;
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}
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async function run() {
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const client = new vonageClientSDK.VonageClient();
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try {
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await client.createSession(userToken);
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// Get my Member information
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myMember = await client.getConversationMember(CONVERSATION_ID, "me");
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document.getElementById("messages").style.display = "block";
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document.getElementById("login").style.display = "none";
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// Load events that happened before the page loaded
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const params = {
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order: "asc",
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pageSize: 100,
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};
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const eventsPage = await client.getConversationEvents(CONVERSATION_ID, params);
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eventsPage.events.forEach((event) => handleEvent(event));
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} catch (error) {
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console.error("Error: ", error);
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return;
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}
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client.on("conversationEvent", (event) => {
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handleEvent(event);
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});
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// Listen for clicks on the submit button and send the existing text value
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sendButton.addEventListener("click", () => {
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client
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.sendMessageTextEvent(CONVERSATION_ID, messageTextarea.value)
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.then((timestamp) => {
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console.log("Successfully sent text message at ", timestamp);
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messageTextarea.value = "";
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})
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.catch((error) => {
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console.error("Error sending text message: ", error);
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});
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});
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}
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aliceLoginBtn.addEventListener("click", () => {
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userToken = ALICE_JWT;
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run();
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});
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bobLoginBtn.addEventListener("click", () => {
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userToken = BOB_JWT;
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run();
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});
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‎messaging-js/index.html‎

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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body {
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font: 13px Helvetica, Arial;
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}
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button {
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cursor: pointer;
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}
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#login {
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width: 100%;
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height: 100vh;
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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}
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#message-textarea {
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width: 85%;
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font-size: 20px;
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}
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#messages {
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display: none;
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}
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#message-feed {
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font-size: 18px;
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padding-bottom: 20px;
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line-height: 22pt;
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height: 300px;
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overflow-y: auto;
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}
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#send {
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width: 85%;
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}
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</style>
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</head>
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<body>
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<section id="login">
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<button id="alice-login">Log in as Alice</button>
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<br /><br />
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<button id="bob-login">Log in as Bob</button>
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</section>
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<section id="messages">
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<div id="message-feed"></div>
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<div>
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<textarea id="message-textarea"></textarea>
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<button id="send">Send</button>
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</div>
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</section>
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<script src="./node_modules/@vonage/client-sdk/dist/vonageClientSDK.min.js"></script>
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<script src="./chat.js"></script>
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</body>
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</html>

‎messaging-js/package.json‎

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{
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"name": "messaging-js",
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"version": "1.0.0",
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"description": "Tutorial Chat application using Vonage Client SDK",
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"main": "chat.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"author": "",
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"license": "ISC",
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"dependencies": {
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"@vonage/client-sdk": "^1.3.0"
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}
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}

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