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3.4.1 • Public • Published

Official JavaScript SDK for Tencent Cloud Chat

About Tencent Cloud Chat

Tencent Cloud Chat provides globally interconnected chat APIs, multi-platform SDKs, and UIKit components to help you quickly bring messaging capabilities such as one-to-one chat, group chat, chat rooms, and system notifications to your applications and websites.


Higher Engagement with Our Feature-rich Chat

Manage Groups and Conversations at Ease

Build Your Own Chat App in just One Day

👉🏻 Free Demo

📄 Documentation

Global Compliance Certifications

Core Capabilities

  • 1 Billion+ Monthly active users
  • 550 Billion+ Daily peak messages
  • 100,000+ Customers worldwid
  • 99.99% Message success rate

Use Cases


Build real-time community interactions in your app using a simple chat API. ✓Various message types ✓Announcement ✓Group chat


Welcome a large audience to your immersive live show using a simple chat API. ✓Unlimited participants ✓Interactive live streaming ✓Online chat


Bridge the limitless virtual and physical worlds using simple chat SDKs. ✓Chat in metaverse ✓User profile and management ✓Immersive interactions


Intensify gaming with real-time chat engagement using a simple chat API. ✓Chat in game ✓Global message access ✓User profile and management


Create interactive virtual classrooms with real-time chat experiences using simple chat SDK and API. ✓Class start notifications ✓Student management ✓Class messages

On-demand Service

Resolve order issues with in-app conversations quickly, with simple SDK and API. ✓Customer service support ✓Order cancellations minimization ✓Social features


npm install @tencentcloud/chat --save
// The upload plugin is required to send messages such as images and files.
npm install tim-upload-plugin --save

Getting started

import TencentCloudChat from '@tencentcloud/chat';
import TIMUploadPlugin from 'tim-upload-plugin';

// Create an SDK instance. 
// The `TencentCloudChat.create()` method returns the same instance for the same `SDKAppID`.
// The SDK instance is usually represented by `chat`.
let chat = TencentCloudChat.create({
  SDKAppID: 0 // Replace `0` with the `SDKAppID` of your Chat app during access.

// Common level. You are advised to use this level during connection as it covers more logs.
// Release level, at which the SDK outputs important information.
// You are advised to use this log level in a production environment.
// chat.setLogLevel(1);

// Register the Tencent Cloud Chat upload plugin.
chat.registerPlugin({'tim-upload-plugin': TIMUploadPlugin});

Sending your first message

1. Generate UserSig

UserSig is a password used to log in to Tencent Cloud Chat. It is the ciphertext obtained after data such as UserID is encrypted. This document describes how to generate a UserSig.

2. Listen to the SDK_READY event

// This event is triggered when the SDK enters the ready state.
// When SDK is ready, the access side can call SDK APIs such as the message sending API to use various features of the SDK
let onSdkReady = function(event) {
  // Now you can create a message instance and send it.
chat.on(TencentCloudChat.EVENT.SDK_READY, onSdkReady);

let onMessageReceived = function(event) {
  // A newly pushed one-to-one message, group message, group tip, or group system notification is received. You can traverse event.data to obtain the message list and render it to the UI.
  // event.name - TencentCloudChat.EVENT.MESSAGE_RECEIVED
  // event.data - An array that stores Message objects - [Message]
chat.on(TencentCloudChat.EVENT.MESSAGE_RECEIVED, onMessageReceived);

3. Login in to the Chat SDK

let promise = chat.login({userID: 'your userID', userSig: 'your userSig'});
promise.then(function(imResponse) {
  console.log(imResponse.data); // Login successful
  if (imResponse.data.repeatLogin === true) {
    // Indicates that the account has logged in and that the current login will be a repeated login.
}).catch(function(imError) {
  console.warn('login error:', imError); // Error information

After successful login, to call APIs that require authentication, such as sendMessage, you must wait until the SDK enters the ready state (you can obtain the status of the SDK by listening to the TencentCloudChat.EVENT.SDK_READY event.

3. Create a message instance

let message = chat.createTextMessage({
  to: 'user1',
  conversationType: TencentCloudChat.TYPES.CONV_C2C,
  payload: {
    text: 'Hello Tencent!'
  // Message custom data (saved in the cloud, will be sent to the peer end, and can still be pulled after the app is uninstalled and reinstalled)
  // cloudCustomData: 'your cloud custom data'

4. Send the message instance

let promise = chat.sendMessage(message);
promise.then(function(imResponse) {
  // The message is sent successfully.
}).catch(function(imError) {
  // The message fails to be sent.
  console.warn('sendMessage error:', imError);

Contact Us

Join a Tencent Cloud Chat developer group for Reliable technical support & Product details & Constant exchange of ideas.

  • Telegram group (EN): join
  • WhatsApp group (EN): join
  • Telegram group (ZH): join
  • WhatsApp group (ZH): join

Supported Browsers

Browser Supported versions
Chrome 16 or higher
Edge 13 or higher
Firefox 11 or higher
Safari 7 or higher
Internet Explorer 10 or higher
Opera 12.1 or higher
iOS Safari 7 or higher
Android Browswer 4.4 (Kitkat) or higher

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npm i @tencentcloud/chat

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