send method
Send an event with a payload to this PubSub. PubSub ensures each event will be received in onReceive exactly once. This will return a waiting message that gets resolved as soon as it has been received on the server. Use .addListener to wait for messages to resolve.
Implementation
WaitingMessage send(String event, Map<String, dynamic> payload) {
WaitingMessage waitingMessage =
PubSubSupervisor.sendMessage(this, event, payload);
if (!waitingMessage.resolved) {
waitingMessage.addListener(() {
waitingMessages.remove(waitingMessage.hashCode);
});
} else {
waitingMessages[waitingMessage.hashCode] = waitingMessage;
}
return waitingMessage;
}