setup

name	setup
description	Set up CometChat Calls SDK v5 for Flutter. Use when adding SDK dependency, configuring CallAppSettings, CometChatCalls.init, platform permissions. Triggers on "setup calls sdk", "add cometchat dependency", "initialize calls", "pubspec".
inclusion	manual

CometChat Calls SDK v5 — Setup (Flutter)

Overview

Install and initialize the CometChat Calls SDK v5 in a Flutter project. Covers dependency setup, platform permissions, and CometChatCalls.init().

Prerequisites

• Flutter 3.10+, Dart 3.0+
• Android minSdk 26, iOS 13.0+
• App ID and Region from CometChat Dashboard

Key Imports

import 'package:cometchat_calls_sdk/cometchat_calls_sdk.dart';

Implementation

1. Add Dependency (pubspec.yaml)

dependencies:
  cometchat_calls_sdk: ^5.0.2

Then run flutter pub get.

2. Android Configuration

In android/app/build.gradle:

android {
    compileSdk 34
    defaultConfig {
        minSdk 26
    }
}

Add to android/app/src/main/AndroidManifest.xml:

<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.INTERNET" />

3. iOS Configuration

In ios/Runner/Info.plist:

<key>NSCameraUsageDescription</key>
<string>Camera access is required for video calls</string>
<key>NSMicrophoneUsageDescription</key>
<string>Microphone access is required for voice and video calls</string>

In ios/Podfile, set minimum iOS version:

platform :ios, '13.0'

4. Initialize SDK

Call once at app startup:

final settings = CallAppSettingsBuilder()
    .setAppId("APP_ID")
    .setRegion("REGION")  // "us", "eu", or "in"
    .build();

CometChatCalls.init(settings,
  onSuccess: (String message) {
    debugPrint("Calls SDK initialized: $message");
  },
  onError: (CometChatCallsException e) {
    debugPrint("Init failed: ${e.message}");
  },
);

5. Authentication

Login with UID + Auth Key (dev only):

CometChatCalls.login(
  uid: "user_uid",
  authKey: "AUTH_KEY",
  onSuccess: (User? user) {
    debugPrint("Logged in as: ${user?.uid}");
  },
  onError: (CometChatCallsException e) {
    debugPrint("Login failed: ${e.message}");
  },
);

Or login with Auth Token (production):

CometChatCalls.loginWithAuthToken(
  authToken: "AUTH_TOKEN",
  onSuccess: (User? user) {
    debugPrint("Logged in as: ${user?.uid}");
  },
  onError: (CometChatCallsException e) {
    debugPrint("Login failed: ${e.message}");
  },
);

6. Check Logged-In User

final user = await CometChatCalls.getLoggedInUser();
if (user != null) {
  // User is already logged in
}

7. Logout

CometChatCalls.logout(
  onSuccess: (String message) {
    debugPrint("Logged out");
  },
  onError: (CometChatCallsException e) {
    debugPrint("Logout failed: ${e.message}");
  },
);

Gotchas

• Request camera and microphone permissions at runtime using permission_handler package
• Call CometChatCalls.init() before any other SDK method
• If using both Chat SDK and Calls SDK, initialize both separately
• The SDK is available on pub.dev
• Android requires minSdk 26 or higher

Sample App Reference

• lib/services/app_state.dart — SDK initialization and login flow
• lib/app_constants.dart — Credential storage
• lib/main.dart — App entry point