Getting Started With Chat Builder

Chat Builder is a powerful tool designed to simplify the integration of CometChat’s UI Kit into your existing React application. With the Chat Builder, you can quickly set up chat functionalities, customize UI elements, and integrate essential features without extensive coding.

Complete Integration Workflow

Design Your Chat Experience - Use the Chat Builder to customize layouts, features, and styling.
Export Your Code - Once satisfied, download the generated code package.
Enable Features - Enable additional features in the CometChat Dashboard if required.
Preview Customizations - Optionally, preview the chat experience before integrating it into your project.
Integration - Integrate into your existing application.
Customize Further - Explore advanced customization options to tailor the chat experience.

Launch the Chat Builder

Log in to your CometChat Dashboard.
Select your application from the list.
Navigate to Integrate > React > Launch Chat Builder.

Enable Features in CometChat Dashboard

If your app requires any of the following features, make sure to enable them from the CometChat Dashboard

Stickers – Allow users to send expressive stickers.
Polls – Enable in-chat polls for user engagement.
Collaborative Whiteboard – Let users draw and collaborate in real time.
Collaborative Document – Allow multiple users to edit documents together.
Message Translation – Translate messages between different languages.
AI User Copilot
- Conversation Starter – Suggests conversation openers.
- Conversation Summary – Generates AI-powered chat summaries.
- Smart Reply – Provides quick reply suggestions.

How to Enable These Features?

Log in to your CometChat Dashboard
Select your application.
Navigate to Chat > Features.
Toggle ON the required features.
Click Save Changes.

Preview Customizations (Optional)

Before integrating the Chat Builder into your project, you can preview the chat experience by following these steps. This step is completely optional and can be skipped if you want to directly integrate the Chat Builder into your project.

You can preview the experience:

Open the cometchat-app-react folder.

Add credentials for your app in src/index.tsx (src/main.tsx incase for Vite):
export const COMETCHAT_CONSTANTS = {
  APP_ID: "", // Replace with your App ID
  REGION: "", // Replace with your App Region
  AUTH_KEY: "", // Replace with your Auth Key or leave blank if you are authenticating using Auth Token
};
Install dependencies:
npm i
Run the app:
npm start

Integration with CometChat Chat Builder (React.js)

Follow these steps to integrate CometChat Chat Builder into your existing React project:

Step 1: Install Dependencies

Run the following command to install the required dependencies:

npm install @cometchat/chat-uikit-react@6.2.3 @cometchat/calls-sdk-javascript

Step 2: Copy CometChat Folder

Copy the cometchat-app-react/src/CometChat folder into your project’s src directory.

Step 3: Initialize CometChat UI Kit

The initialization process varies depending on your setup. Select your framework:

src/main.tsx

import { createRoot } from "react-dom/client";
import "./index.css";
import App from "./App.tsx";
import {
  UIKitSettingsBuilder,
  CometChatUIKit,
} from "@cometchat/chat-uikit-react";
import { setupLocalization } from "./CometChat/utils/utils.ts";
import { CometChatProvider } from "./CometChat/context/CometChatContext";

export const COMETCHAT_CONSTANTS = {
  APP_ID: "", // Replace with your App ID
  REGION: "", // Replace with your App Region
  AUTH_KEY: "", // Replace with your Auth Key or leave blank if you are authenticating using Auth Token
};

const uiKitSettings = new UIKitSettingsBuilder()
  .setAppId(COMETCHAT_CONSTANTS.APP_ID)
  .setRegion(COMETCHAT_CONSTANTS.REGION)
  .setAuthKey(COMETCHAT_CONSTANTS.AUTH_KEY)
  .subscribePresenceForAllUsers()
  .build();

CometChatUIKit.init(uiKitSettings)?.then(() => {
  setupLocalization();
  createRoot(document.getElementById("root")!).render(
    <CometChatProvider>
      <App />
    </CometChatProvider>
  );
});

Ensure you replace the following placeholders with your actual CometChat credentials:

APP_ID → Your CometChat App ID
AUTH_KEY → Your CometChat Auth Key
REGION → Your App Region

These values are required for proper authentication and seamless integration.

To authenticate a user, you need a UID. You can either:

Create new users on the CometChat Dashboard, CometChat SDK Method or via the API.
Use pre-generated test users:
- cometchat-uid-1
- cometchat-uid-2
- cometchat-uid-3
- cometchat-uid-4
- cometchat-uid-5

The Login method returns a User object containing all relevant details of the logged-in user.

Security Best Practices

The Auth Key method is recommended for proof-of-concept (POC) development and early-stage testing.
For production environments, it is strongly advised to use an Auth Token instead of an Auth Key to enhance security and prevent unauthorized access.

User Login After Initialization Once the CometChat UI Kit is initialized, you can log in the user whenever it fits your app’s workflow.

import { CometChatUIKit } from "@cometchat/chat-uikit-react";

const UID = "UID"; // Replace with your actual UID

CometChatUIKit.getLoggedinUser().then((user: CometChat.User | null) => {
  if (!user) {
    // If no user is logged in, proceed with login
    CometChatUIKit.login(UID)
      .then((user: CometChat.User) => {
        console.log("Login Successful:", { user });
        // Mount your app
      })
      .catch(console.log);
  } else {
    // If user is already logged in, mount your app
  }
});

However, if you prefer to log in the user immediately after initialization, you can do so within the then block of CometChatUIKit.init().

import React from "react";
import ReactDOM from "react-dom/client";
import App from "./App";
import {
  UIKitSettingsBuilder,
  CometChatUIKit,
} from "@cometchat/chat-uikit-react";
import { setupLocalization } from "./CometChat/utils/utils";
import { CometChatProvider } from "./CometChat/context/CometChatContext";

export const COMETCHAT_CONSTANTS = {
  APP_ID: "", // Replace with your App ID
  REGION: "", // Replace with your App Region
  AUTH_KEY: "", // Replace with your Auth Key or leave blank if you are authenticating using Auth Token
};

const uiKitSettings = new UIKitSettingsBuilder()
  .setAppId(COMETCHAT_CONSTANTS.APP_ID)
  .setRegion(COMETCHAT_CONSTANTS.REGION)
  .setAuthKey(COMETCHAT_CONSTANTS.AUTH_KEY)
  .subscribePresenceForAllUsers()
  .build();

CometChatUIKit.init(uiKitSettings)?.then(() => {
  setupLocalization();

  const UID = "UID"; // Replace with your actual UID

  CometChatUIKit.getLoggedinUser().then((user: CometChat.User | null) => {
    if (!user) {
      CometChatUIKit.login(UID)
        .then((loggedUser: CometChat.User) => {
          console.log("Login Successful:", loggedUser);
          // Mount your app
          ReactDOM.createRoot(document.getElementById("root") as HTMLElement).render(
            <CometChatProvider>
              <App />
            </CometChatProvider>
          );
        })
        .catch((error) => console.error("Login Failed:", error));
    } else {
      // User already logged in, mount app directly
      console.log("User already logged in:", user);
      ReactDOM.createRoot(document.getElementById("root") as HTMLElement).render(
        <CometChatProvider>
          <App />
        </CometChatProvider>
      );
    }
  });
});

Step 5: Render the CometChatApp Component

Add the CometChatApp component to your app:

import CometChatApp from "./CometChat/CometChatApp";

const App = () => {
   return (
     /* CometChatApp requires a parent with explicit height & width to render correctly. 
     Adjust the height and width as needed.
     */
    <div style={{ width: "100vw", height: "100vh" }}>
      <CometChatApp />
    </div>
  );
};

export default App;

Render with Default User and Group

You can also render the component with default user and group selection:

import { useEffect, useState } from "react";
import { CometChat } from "@cometchat/chat-sdk-javascript";
import CometChatApp from "./CometChat/CometChatApp";
const App = () => {
  const [selectedUser, setSelectedUser] = useState<CometChat.User | undefined>(
    undefined
  );
  const [selectedGroup, setSelectedGroup] = useState<
    CometChat.Group | undefined
  >(undefined);
  useEffect(() => {
    const UID = "cometchat-uid-2"; // Replace with your User ID
    CometChat.getUser(UID).then(setSelectedUser).catch(console.error);
    // const GUID = "cometchat-guid-1"; // Replace with your Group ID
    // CometChat.getGroup(GUID).then(setSelectedGroup).catch(console.error);
  }, []);
  return (
    /* CometChatApp requires a parent with explicit height & width to render correctly.
      Adjust the height and width as needed.
     */
    <div style={{ width: "100vw", height: "100vh" }}>
      <CometChatApp user={selectedUser} group={selectedGroup} />
    </div>
  );
};
export default App;

When you enable the Without Sidebar option for the Sidebar, the following behavior applies:

User Chats (chatType = "user"): Displays one-on-one chats only, either for a currently selected user or the default user.
Group Chats (chatType = "group"): Displays group chats exclusively, either for a currently selected group or the default group.

Step 6: Run the App

Start your application with the appropriate command based on your setup:

Vite / Next.js:

npm run dev

Create React App (CRA):

npm start

Additional Configuration Notes

Ensure the following features are also turned on in your app > Chat > Features for full functionality:

Message translation
Polls
Stickers
Collaborative whiteboard
Collaborative document
Conversation starter
Conversation summary
Smart reply

If you face any issues while integrating the builder in your app project, please check if you have the following configurations added to your tsConfig.json:

{
  "compilerOptions": {
    "jsx": "react-jsx",
    "resolveJsonModule": true
  }
}

If your development server is running, restart it to ensure the new TypeScript configuration is picked up.

Understanding Your Generated Code

The exported package includes several important elements to help you further customize your chat experience:

Directory Structure

The CometChat folder contains:

Components - Individual UI elements (message bubbles, input fields, etc.)
Layouts - Pre-configured arrangement of components
Context - State management for your chat application
Hooks - Custom React hooks for chat functionality
Utils - Helper functions and configuration

Configuration Files

CometChat Settings File - Controls the appearance and behavior of your chat UI
Theme Configuration - Customize colors, typography, and spacing
Localization Files - Add support for different languages

Next Steps

Now that you’ve set up your chat experience, explore further configuration options:

Builder Configuration File – Learn how to customize your integration.
Builder Directory Structure – Understand the organization of the builder components.
Advanced Theming – Modify themes and UI elements to match your brand.
Additional Customizations – Customise the UI the way you want.

Additional Customizations

​Complete Integration Workflow

​Launch the Chat Builder

​Enable Features in CometChat Dashboard

​How to Enable These Features?

​Preview Customizations (Optional)

​Integration with CometChat Chat Builder (React.js)

​Step 1: Install Dependencies

​Step 2: Copy CometChat Folder

​Step 3: Initialize CometChat UI Kit

​Step 4: User Login

​Step 5: Render the CometChatApp Component

​Render with Default User and Group

​Step 6: Run the App

​Additional Configuration Notes

​Understanding Your Generated Code

​Directory Structure

​Configuration Files

​Next Steps