QuickBlox Flutter SDK

  void someMethodInvokingFromMain() async {
  const applicationId = "your_application_id";
  const authKey = "your_auth_key";
  const authSecret = "your_auth_secret";
  const accountKey = "your_account_key";

  //Here we initialize the SDK with the required parameters.
  await QB.settings.init(applicationId, authKey, authSecret, accountKey);

  //Here we optionally enable automatic chat reconnection. If there are network issues, the chat will reconnect automatically.
  await QB.settings.enableAutoReconnect(true);

  //Here we log in the user to create a session and start using the chat and other SDK features.
  QBLoginResult result = await QB.auth.login("user_login", "user_password");
  QBUser? qbUser = result.qbUser;

  //Here we connect to the chat to start using real-time messaging for sending and receiving messages.
  await QB.chat.connect(qbUser!.id!, "user_password");

  //Here we subscribe to chat events to receive incoming messages from other users.
  await QB.chat.subscribeChatEvent(QBChatEvents.RECEIVED_NEW_MESSAGE, (data) {
    Map map = Map.from(data);

    Map payload = Map.from(map["payload"]);
    String messageBody = payload["body"] as String;
    String messageId = payload["id"] as String;
  });

  //Here we optionally create a new dialog with other users. The occupantsIds parameter should contain the IDs of the participants.
  QBDialog? createdDialog = await QB.chat.createDialog(QBChatDialogTypes.GROUP_CHAT, occupantsIds: [], dialogName: "my dialog name");

  //Here we send our message to other users in the dialog.
  await QB.chat.sendMessage(createdDialog!.id!, body: "message body", saveToHistory: true);
}