getGroup function
Implementation
Future<GroupDTO> getGroup({required String chatId}) async {
if (chatId.isEmpty) {
throw Exception('chatId cannot be null or empty');
}
final result = await http.get(path: '/v1/chat/groups/$chatId');
if (result == null || result is String) {
throw Exception(result ?? 'Cannot find group with $chatId');
}
return GroupDTO.fromJson(result);
}