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This page contains Flutter SDK code examples for User Engagement extensions. For feature documentation, setup instructions, and extension settings, see User Engagement Extensions.

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How to Use Extensions with SDK

1

Enable in Dashboard

Login to CometChat Dashboard, select your app, then go to Chat & Messaging → Features and enable the extension.
2

Configure settings (if required)

Some extensions require API keys or additional configuration. Open the extension settings in the Dashboard.
3

Implement SDK methods

Use the code examples below to call extension APIs and extract extension data from messages.
4

Build your UI

Create UI components to display extension data (e.g., polls, stickers, GIFs).

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Giphy

Add GIFs from Giphy to your conversations. 
String url = '/v1/trending?offset=1&limit=15';

CometChat.callExtension('gifs-giphy', 'GET', url, null,
  onSuccess: (Map<String, dynamic> response) {
    // GIFs data from Giphy
    debugPrint('Trending GIFs: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Search for GIFs

String query = 'awesome';
String url = '/v1/search?offset=1&limit=15&query=$query';

CometChat.callExtension('gifs-giphy', 'GET', url, null,
  onSuccess: (Map<String, dynamic> response) {
    // GIFs data from Giphy
    debugPrint('Search GIFs: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Message Translation

Translate messages into 70+ languages.

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Translate Message

Map<String, dynamic> body = {
  'msgId': 12,
  'text': 'Hey there! How are you?',
  'languages': ['ru', 'hi', 'mr'],
};

CometChat.callExtension('message-translation', 'POST', '/v2/translate', body,
  onSuccess: (Map<String, dynamic> response) {
    // Result of translations
    debugPrint('Translations: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Polls

Create and vote on polls in conversations.

​
Creating a Poll

Map<String, dynamic> body = {
  'question': 'Which OS do you use?',
  'options': ['Windows', 'Ubuntu', 'MacOS', 'Other'],
  'receiver': 'cometchat-uid-1',
  'receiverType': 'user',
};

CometChat.callExtension('polls', 'POST', '/v2/create', body,
  onSuccess: (Map<String, dynamic> response) {
    // Details about the created poll
    debugPrint('Poll created: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Voting in a Poll

Map<String, dynamic> body = {
  'vote': '3',
  'id': 'd5441d53-c191-4696-9e92-e4d79da7463',
};

CometChat.callExtension('polls', 'POST', '/v2/vote', body,
  onSuccess: (Map<String, dynamic> response) {
    debugPrint('Vote submitted successfully');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Getting Results

String pollId = 'd5441d53-c191-4696-9e92-e4d79da7463';
String url = '/v2/results?id=$pollId';

CometChat.callExtension('polls', 'GET', url, null,
  onSuccess: (Map<String, dynamic> response) {
    // Poll results
    debugPrint('Poll results: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Reminders

Set reminders for messages or custom events.

​
Set Message Reminders

Map<String, dynamic> body = {
  'about': 1,
  'isCustom': false,
  'timeInMS': 1638351344989,
};

CometChat.callExtension('reminders', 'POST', '/v1/reminder', body,
  onSuccess: (Map<String, dynamic> response) {
    debugPrint('Reminder created successfully');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Set Personal Reminders

Map<String, dynamic> body = {
  'about': 'Drinking water',
  'isCustom': true,
  'timeInMS': 1638351344989,
};

CometChat.callExtension('reminders', 'POST', '/v1/reminder', body,
  onSuccess: (Map<String, dynamic> response) {
    debugPrint('Personal reminder created successfully');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
List Reminders

CometChat.callExtension('reminders', 'GET', '/v1/fetch', null,
  onSuccess: (Map<String, dynamic> response) {
    var reminders = response['reminders'];
    debugPrint('Reminders: $reminders');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Delete Reminders

Map<String, dynamic> body = {
  'reminderId': 'e9cda52a-3839-4fd5-a010-b70db136f0f1',
};

CometChat.callExtension('reminders', 'DELETE', '/v1/reminder', body,
  onSuccess: (Map<String, dynamic> response) {
    debugPrint('Reminder deleted successfully');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Stickers

Load and send stickers in conversations.

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Loading Stickers

CometChat.callExtension('stickers', 'GET', '/v1/fetch', null,
  onSuccess: (Map<String, dynamic> response) {
    // Stickers received
    debugPrint('Stickers: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Stipop

Access Stipop’s sticker platform. 
String lang = 'en';
int limit = 20;
int pageNumber = 1;
String countryCode = 'US';
String url = '/v1/trending?lang=$lang&limit=$limit&pageNumber=$pageNumber&countryCode=$countryCode';

CometChat.callExtension('stickers-stipop', 'GET', url, null,
  onSuccess: (Map<String, dynamic> response) {
    // Stickers in response
    debugPrint('Trending stickers: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Search for Stickers

String lang = 'en';
int limit = 20;
int pageNumber = 1;
String query = 'happy';
String url = '/v1/search?lang=$lang&limit=$limit&pageNumber=$pageNumber&query=$query';

CometChat.callExtension('stickers-stipop', 'GET', url, null,
  onSuccess: (Map<String, dynamic> response) {
    // Stickers in response
    debugPrint('Search stickers: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Tenor

Add GIFs from Tenor to your conversations. 
String url = '/v1/trending?offset=1&limit=15';

CometChat.callExtension('gifs-tenor', 'GET', url, null,
  onSuccess: (Map<String, dynamic> response) {
    // GIFs data from Tenor
    debugPrint('Trending GIFs: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);

​
Search for GIFs

String query = 'awesome';
String url = '/v1/search?offset=1&limit=15&query=$query';

CometChat.callExtension('gifs-tenor', 'GET', url, null,
  onSuccess: (Map<String, dynamic> response) {
    // GIFs data from Tenor
    debugPrint('Search GIFs: $response');
  },
  onError: (CometChatException e) {
    debugPrint('Error: ${e.message}');
  }
);