Transient Messages

Transient messages are messages that are sent in real-time only and are not saved or tracked anywhere. The receiver of the message will only receive the message if he is online and these messages cannot be retrieved later.

Send a Transient Message

You can use the sendTransientMessage() method to send a transient message to a user or in a group. The receiver will receive this information in the onTransientMessageReceived() method of the MessageListener class. In order to send the transient message, you need to use the TransientMessage class.

Java

String receiverId = "cometchat-uid-2";
String receiverType = CometChatConstants.RECEIVER_TYPE_USER;

JSONObject data = new JSONObject();
data.put("LIVE_REACTION", "heart");
TransientMessage transientMessage = new TransientMessage(uid, CometChatConstants.RECEIVER_TYPE_USER, data);
CometChat.sendTransientMessage(transientMessage);

Kotlin

val receiverId = "cometchat-uid-2"
val receiverType = CometChatConstants.RECEIVER_TYPE_USER

val data = JSONObject()
data.put("LIVE_REACTION", "heart")
val transientMessage = TransientMessage(uid, CometChatConstants.RECEIVER_TYPE_USER, data)
CometChat.sendTransientMessage(transientMessage)

Real-time Transient Messages

In other words, as a recipient, how do I know when someone sends a transient message?

You will receive the transient message in the onTransientMessageReceived() method of the registered MessageListener class.

Java

CometChat.addMessageListener("UNIQUE_LISTENER_ID", new CometChat.MessageListener() {
  @Override
  public void onTransientMessageReceived(TransientMessage transientMessage) {
    Log.d(TAG, "Transient message received with data : " + transientMessage.getData());  
  }
});

Kotlin

CometChat.addMessageListener("UNIQUE_LISTENER_ID", object : MessageListener() {
  override fun onTransientMessageReceived(transientMessage: TransientMessage) {
    Log.d(TAG, "Transient message received with data : " + transientMessage.data)
  }
}) 

The TransientMessage class consists of the below parameters:

Parameter	Information
sender	An object of the User class holding all the information. related to the sender of the transient message.
receiverId	Unique Id of the receiver. This can be the Id of the group or the user the transient message is sent to.
receiverType	The type of the receiver - CometChat.RECEIVER_TYPE.USER or CometChat.RECEIVER_TYPE.GROUP
data	A JSONObject to provide data.